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\n  \n 2023\n \n \n (1)\n \n \n
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\n \n\n \n \n Bartolomé, M.; Cazenave, G.; Luetscher, M.; Spötl, C.; Gázquez, F.; Belmonte, Á.; Turchyn, A. V.; López-Moreno, J. I.; and Moreno, A.\n\n\n \n \n \n \n \n Mountain permafrost in the Central Pyrenees: insights from the Devaux ice cave.\n \n \n \n \n\n\n \n\n\n\n The Cryosphere, 17(2): 477–497. February 2023.\n Publisher: Copernicus GmbH\n\n\n\n
\n\n\n\n \n \n \"MountainPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
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@article{bartolome_mountain_2023,\n\ttitle = {Mountain permafrost in the {Central} {Pyrenees}: insights from the {Devaux} ice cave},\n\tvolume = {17},\n\tissn = {1994-0416},\n\tshorttitle = {Mountain permafrost in the {Central} {Pyrenees}},\n\turl = {https://tc.copernicus.org/articles/17/477/2023/},\n\tdoi = {10.5194/tc-17-477-2023},\n\tabstract = {Ice caves are one of the least studied parts of the cryosphere, particularly those located in inaccessible permafrost areas at high altitudes or high latitudes. We characterize the climate dynamics and the geomorphological features of Devaux cave, an outstanding ice cave in the Central Pyrenees on the French–Spanish border. Two distinct cave sectors were identified based on air temperature and geomorphological observations. The first one comprises well-ventilated galleries with large temperature oscillations likely influenced by a cave river. The second sector corresponds to more isolated chambers, where air and rock temperatures stay below 0 ∘C throughout the year. Seasonal layered ice and hoarfrost occupy the first sector, while transparent, massive perennial ice is present in the isolated chambers. Cryogenic calcite and gypsum are mainly present within the perennial ice. During winter, the cave river freezes at the outlet, resulting in a damming and backflooding of the cave. We suggest that relict ice formations record past damming events with the subsequent formation of congelation ice. δ34S values of gypsum indicate that the sulfate originated from the oxidation of pyrite present in the bedrock. Several features including air and rock temperatures, the absence of drips, the small loss of ice in the past 7 decades, and the location of ice bodies in the cave indicate that the cave permafrost is the result of a combination of undercooling by ventilation and diffusive heat transfer from the surrounding permafrost, reaching a thickness of ∼ 200 m.},\n\tlanguage = {English},\n\tnumber = {2},\n\turldate = {2023-02-08},\n\tjournal = {The Cryosphere},\n\tauthor = {Bartolomé, Miguel and Cazenave, Gérard and Luetscher, Marc and Spötl, Christoph and Gázquez, Fernando and Belmonte, Ánchel and Turchyn, Alexandra V. and López-Moreno, Juan Ignacio and Moreno, Ana},\n\tmonth = feb,\n\tyear = {2023},\n\tnote = {Publisher: Copernicus GmbH},\n\tpages = {477--497},\n}\n\n
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\n Ice caves are one of the least studied parts of the cryosphere, particularly those located in inaccessible permafrost areas at high altitudes or high latitudes. We characterize the climate dynamics and the geomorphological features of Devaux cave, an outstanding ice cave in the Central Pyrenees on the French–Spanish border. Two distinct cave sectors were identified based on air temperature and geomorphological observations. The first one comprises well-ventilated galleries with large temperature oscillations likely influenced by a cave river. The second sector corresponds to more isolated chambers, where air and rock temperatures stay below 0 ∘C throughout the year. Seasonal layered ice and hoarfrost occupy the first sector, while transparent, massive perennial ice is present in the isolated chambers. Cryogenic calcite and gypsum are mainly present within the perennial ice. During winter, the cave river freezes at the outlet, resulting in a damming and backflooding of the cave. We suggest that relict ice formations record past damming events with the subsequent formation of congelation ice. δ34S values of gypsum indicate that the sulfate originated from the oxidation of pyrite present in the bedrock. Several features including air and rock temperatures, the absence of drips, the small loss of ice in the past 7 decades, and the location of ice bodies in the cave indicate that the cave permafrost is the result of a combination of undercooling by ventilation and diffusive heat transfer from the surrounding permafrost, reaching a thickness of ∼ 200 m.\n
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\n  \n 2022\n \n \n (2)\n \n \n
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\n \n\n \n \n Malard, A.; Dörfliger, N.; Jeannin, P.; and Laube, S.\n\n\n \n \n \n \n \n Contribution of the dynamic visualization of a 3D hydrogeological conceptual model to the participatory management of groundwater resources.\n \n \n \n \n\n\n \n\n\n\n Comptes Rendus. Géoscience, 355(S1): 1–14. October 2022.\n \n\n\n\n
\n\n\n\n \n \n \"ContributionPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
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@article{malard_contribution_2022,\n\ttitle = {Contribution of the dynamic visualization of a {3D} hydrogeological conceptual model to the participatory management of groundwater resources},\n\tvolume = {355},\n\tissn = {1778-7025},\n\turl = {https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.152/},\n\tdoi = {10.5802/crgeos.152},\n\tlanguage = {en},\n\tnumber = {S1},\n\turldate = {2022-10-30},\n\tjournal = {Comptes Rendus. Géoscience},\n\tauthor = {Malard, Arnauld and Dörfliger, Nathalie and Jeannin, Pierre-Yves and Laube, Silvan},\n\tmonth = oct,\n\tyear = {2022},\n\tpages = {1--14},\n}\n\n
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\n \n\n \n \n Marchesini, A.; Festi, D.; Girardi, M.; Micheletti, D.; Vernesi, C.; and Luetscher, M.\n\n\n \n \n \n \n \n Ancient DNA from speleothems: opportunity or challenge?.\n \n \n \n \n\n\n \n\n\n\n Quaternary Research,1–9. October 2022.\n \n\n\n\n
\n\n\n\n \n \n \"AncientPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
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@article{marchesini_ancient_2022,\n\ttitle = {Ancient {DNA} from speleothems: opportunity or challenge?},\n\tissn = {0033-5894, 1096-0287},\n\tshorttitle = {Ancient {DNA} from speleothems},\n\turl = {https://www.cambridge.org/core/product/identifier/S0033589422000461/type/journal_article},\n\tdoi = {10.1017/qua.2022.46},\n\tabstract = {Abstract\n            Ancient environmental DNA retrieved from sedimentary records (sedaDNA) can complement fossil-morphological approaches for characterizing Quaternary biodiversity changes. PCR-based DNA metabarcoding is so far the most widely used method in environmental DNA studies, including sedaDNA. However, degradation of ancient DNA and potential contamination, together with the PCR amplification drawbacks, have to be carefully considered. Here we tested this approach on speleothems from an Alpine cave that, according to a previous palynomorphological study, have shown to contain abundant pollen grains. This offers a unique opportunity for comparing the two methods and, indirectly, trying to validate DNA-based results. The plant taxa identified by sedaDNA are fewer than those by pollen analysis, and success rate of PCR replicates is low. Despite extensive work performed following best practice for sedaDNA, our results are suboptimal and accompanied by a non-negligible uncertainty. Our preliminary data seem to indicate that paleoenvironmental DNA may be isolated from speleothems, but the intrinsic weakness of PCR-based metabarcoding poses a challenge to its exploitation. We suggest that newly developed methods such as hybridization capture, being free from PCR drawbacks and offering the opportunity to directly assess aDNA authenticity, may overcome these limitations, allowing a proper exploitation of speleothems as biological archives.},\n\tlanguage = {en},\n\turldate = {2023-02-01},\n\tjournal = {Quaternary Research},\n\tauthor = {Marchesini, Alexis and Festi, Daniela and Girardi, Matteo and Micheletti, Diego and Vernesi, Cristiano and Luetscher, Marc},\n\tmonth = oct,\n\tyear = {2022},\n\tpages = {1--9},\n}\n\n
\n
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\n Abstract Ancient environmental DNA retrieved from sedimentary records (sedaDNA) can complement fossil-morphological approaches for characterizing Quaternary biodiversity changes. PCR-based DNA metabarcoding is so far the most widely used method in environmental DNA studies, including sedaDNA. However, degradation of ancient DNA and potential contamination, together with the PCR amplification drawbacks, have to be carefully considered. Here we tested this approach on speleothems from an Alpine cave that, according to a previous palynomorphological study, have shown to contain abundant pollen grains. This offers a unique opportunity for comparing the two methods and, indirectly, trying to validate DNA-based results. The plant taxa identified by sedaDNA are fewer than those by pollen analysis, and success rate of PCR replicates is low. Despite extensive work performed following best practice for sedaDNA, our results are suboptimal and accompanied by a non-negligible uncertainty. Our preliminary data seem to indicate that paleoenvironmental DNA may be isolated from speleothems, but the intrinsic weakness of PCR-based metabarcoding poses a challenge to its exploitation. We suggest that newly developed methods such as hybridization capture, being free from PCR drawbacks and offering the opportunity to directly assess aDNA authenticity, may overcome these limitations, allowing a proper exploitation of speleothems as biological archives.\n
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\n  \n 2021\n \n \n (6)\n \n \n
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\n \n\n \n \n Vuilleumier, C.; Jeannin, P.; Hessenauer, M.; and Perrochet, P.\n\n\n \n \n \n \n \n Hydraulics and Turbidity Generation in the Milandre Cave (Switzerland).\n \n \n \n \n\n\n \n\n\n\n Water Resources Research, 57(8). August 2021.\n \n\n\n\n
\n\n\n\n \n \n \"HydraulicsPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
\n 
@article{vuilleumier_hydraulics_2021,\n\ttitle = {Hydraulics and {Turbidity} {Generation} in the {Milandre} {Cave} ({Switzerland})},\n\tvolume = {57},\n\tissn = {0043-1397, 1944-7973},\n\turl = {https://onlinelibrary.wiley.com/doi/10.1029/2020WR029550},\n\tdoi = {10.1029/2020WR029550},\n\tlanguage = {en},\n\tnumber = {8},\n\turldate = {2021-10-08},\n\tjournal = {Water Resources Research},\n\tauthor = {Vuilleumier, Cécile and Jeannin, Pierre‐Yves and Hessenauer, Marc and Perrochet, Pierre},\n\tmonth = aug,\n\tyear = {2021},\n}\n\n
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\n \n\n \n \n Sauro, F.; Fellin, M. G.; Columbu, A.; Häuselmann, P.; Borsato, A.; Carbone, C.; and de Waele, J.\n\n\n \n \n \n \n Hints on the Late Miocene evolution of the Tonale-Adamello-Brenta region (Alps, Italy) based on allochtonous sediments from Raponzolo Cave.\n \n \n \n\n\n \n\n\n\n Front. Earth Sci., 9(672119): 17. 2021.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
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@article{sauro_hints_2021,\n\ttitle = {Hints on the {Late} {Miocene} evolution of the {Tonale}-{Adamello}-{Brenta} region ({Alps}, {Italy}) based on allochtonous sediments from {Raponzolo} {Cave}},\n\tvolume = {9},\n\tnumber = {672119},\n\tjournal = {Front. Earth Sci.},\n\tauthor = {Sauro, Francesco and Fellin, Maria Giuditta and Columbu, Andrea and Häuselmann, Philipp and Borsato, Andrea and Carbone, Cristina and de Waele, Jo},\n\tyear = {2021},\n\tpages = {17},\n}\n\n
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\n \n\n \n \n Luetscher, M.; Moseley, G. E.; Festi, D.; Hof, F.; Edwards, R. L.; and Spötl, C.\n\n\n \n \n \n \n \n A Last Interglacial speleothem record from the Sieben Hengste cave system (Switzerland): Implications for alpine paleovegetation.\n \n \n \n \n\n\n \n\n\n\n Quaternary Science Reviews, 262: 106974. June 2021.\n \n\n\n\n
\n\n\n\n \n \n \"APaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@article{luetscher_last_2021,\n\ttitle = {A {Last} {Interglacial} speleothem record from the {Sieben} {Hengste} cave system ({Switzerland}): {Implications} for alpine paleovegetation},\n\tvolume = {262},\n\tissn = {0277-3791},\n\tshorttitle = {A {Last} {Interglacial} speleothem record from the {Sieben} {Hengste} cave system ({Switzerland})},\n\turl = {https://www.sciencedirect.com/science/article/pii/S0277379121001815},\n\tdoi = {10.1016/j.quascirev.2021.106974},\n\tabstract = {A precisely dated speleothem isotope record from the Sieben Hengste cave system, Switzerland, reveals a Last Interglacial (LIG) climate optimum centred at 128.1 ± 1.2 ka. The oxygen isotope signal is consistent with a temperature-dominated record and shows a strong correlation with the modelled Greenland δ18O signal. The comparison with speleothems formed during the Last Glacial Maximum (LGM) in the same cave indicates a 4–5‰ difference in δ18O between peak LIG and peak LGM conditions, suggesting peak LIG temperatures being up to 3 °C higher than the Holocene average. Pollen extracted from the stalagmite indicates a vegetation response delayed by up to 3 ka with maximum pollen concentrations recorded at 125 ± 2.2 ka. Our results support a regional vegetation dominated by thermophile tree species including Corylus (hazel), Quercus robur-type (oak), Ulmus (elm), Tilia (lime tree) and Hedera (ivy), consistent with slightly warmer conditions than today. Despite the relatively low pollen concentration, the speleothem-based pollen spectra are consistent with regional pollen assemblage zones from paleolake sediments and provide the first direct paleovegetation evidence of thermophilization during the LIG at high altitudes in the Alps.},\n\tlanguage = {en},\n\turldate = {2021-11-03},\n\tjournal = {Quaternary Science Reviews},\n\tauthor = {Luetscher, Marc and Moseley, Gina E. and Festi, Daniela and Hof, Florian and Edwards, R. Lawrence and Spötl, Christoph},\n\tmonth = jun,\n\tyear = {2021},\n\tkeywords = {Alps, Europe, Isotopes, Last interglacial, Paleoclimatology, Pollen, Speleothems, Temperature., U-series, Vegetation},\n\tpages = {106974},\n}\n\n
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\n A precisely dated speleothem isotope record from the Sieben Hengste cave system, Switzerland, reveals a Last Interglacial (LIG) climate optimum centred at 128.1 ± 1.2 ka. The oxygen isotope signal is consistent with a temperature-dominated record and shows a strong correlation with the modelled Greenland δ18O signal. The comparison with speleothems formed during the Last Glacial Maximum (LGM) in the same cave indicates a 4–5‰ difference in δ18O between peak LIG and peak LGM conditions, suggesting peak LIG temperatures being up to 3 °C higher than the Holocene average. Pollen extracted from the stalagmite indicates a vegetation response delayed by up to 3 ka with maximum pollen concentrations recorded at 125 ± 2.2 ka. Our results support a regional vegetation dominated by thermophile tree species including Corylus (hazel), Quercus robur-type (oak), Ulmus (elm), Tilia (lime tree) and Hedera (ivy), consistent with slightly warmer conditions than today. Despite the relatively low pollen concentration, the speleothem-based pollen spectra are consistent with regional pollen assemblage zones from paleolake sediments and provide the first direct paleovegetation evidence of thermophilization during the LIG at high altitudes in the Alps.\n
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\n \n\n \n \n Freydier, P.; Weber, E.; Martin, J.; Jeannin, P.; Guerrier, B.; and Doumenc, F.\n\n\n \n \n \n \n \n Vermiculations in painted caves: New inputs from laboratory experiments and field observations.\n \n \n \n \n\n\n \n\n\n\n International Journal of Speleology, 50(3): 289–299. September 2021.\n \n\n\n\n
\n\n\n\n \n \n \"VermiculationsPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
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@article{freydier_vermiculations_2021,\n\ttitle = {Vermiculations in painted caves: {New} inputs from laboratory experiments and field observations},\n\tvolume = {50},\n\tissn = {0392-6672, 1827-806X},\n\tshorttitle = {Vermiculations in painted caves},\n\turl = {https://digitalcommons.usf.edu/ijs/vol50/iss3/7},\n\tdoi = {10.5038/1827-806X.50.3.2390},\n\tabstract = {Vermiculations are aggregates of small particles commonly found on cave walls. They are a major concern for the conservation of painted caves, as they can potentially alter valuable prehistoric cave paintings. A previous rheological study of fine sediment deposits on cave walls revealed that this material can undergo a solid-to-liquid transition triggered by variations in the chemical composition of the water film on the wall. Such a transition could occur at the origin of vermiculations by allowing the sediment to flow under low mechanical stress. In this work, we provide quantitative information on the conditions leading to this transition and show the importance of the chemical composition of the water film on the cave walls. A complete understanding of the phenomenon will, however, require more field information. This includes monitoring of the evolution of vermiculations, for which we have developed a dedicated observation protocol. Based on the combination of photogrammetry and a geographic information system we were able to precisely map the walls of the Hall of Bulls in Lascaux cave from past and future photographs. To better understand the vermiculation process, pictures need to be taken regularly, and the chemical composition of the thin water film covering cave walls needs to be analyzed with a similar time step. The correlation between the evolution of vermiculations, the humidification phases of the walls, temperature changes and the chemical monitoring of the water film should shed new light on conditions triggering vermiculations.},\n\tnumber = {3},\n\turldate = {2022-04-20},\n\tjournal = {International Journal of Speleology},\n\tauthor = {Freydier, Perrine and Weber, Eric and Martin, Jérôme and Jeannin, Pierre-Yves and Guerrier, Béatrice and Doumenc, Frédéric},\n\tmonth = sep,\n\tyear = {2021},\n\tpages = {289--299},\n}\n\n
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\n Vermiculations are aggregates of small particles commonly found on cave walls. They are a major concern for the conservation of painted caves, as they can potentially alter valuable prehistoric cave paintings. A previous rheological study of fine sediment deposits on cave walls revealed that this material can undergo a solid-to-liquid transition triggered by variations in the chemical composition of the water film on the wall. Such a transition could occur at the origin of vermiculations by allowing the sediment to flow under low mechanical stress. In this work, we provide quantitative information on the conditions leading to this transition and show the importance of the chemical composition of the water film on the cave walls. A complete understanding of the phenomenon will, however, require more field information. This includes monitoring of the evolution of vermiculations, for which we have developed a dedicated observation protocol. Based on the combination of photogrammetry and a geographic information system we were able to precisely map the walls of the Hall of Bulls in Lascaux cave from past and future photographs. To better understand the vermiculation process, pictures need to be taken regularly, and the chemical composition of the thin water film covering cave walls needs to be analyzed with a similar time step. The correlation between the evolution of vermiculations, the humidification phases of the walls, temperature changes and the chemical monitoring of the water film should shed new light on conditions triggering vermiculations.\n
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\n \n\n \n \n Bartolomé, M.; Benito, G.; Luetscher, M.; Badules-Iglesias, J.; Pérez-Villar, G.; Edwards, R.; and Moreno, A.\n\n\n \n \n \n \n The potential of Ojo de Valjunquera cave (NE of Iberia) sediments for paleoflood reconstructions.\n \n \n \n\n\n \n\n\n\n Cuaternario y Geomorfología, 35(3-4): 11–28. 2021.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
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@article{bartolome_potential_2021,\n\ttitle = {The potential of {Ojo} de {Valjunquera} cave ({NE} of {Iberia}) sediments for paleoflood reconstructions},\n\tvolume = {35},\n\tnumber = {3-4},\n\tjournal = {Cuaternario y Geomorfología},\n\tauthor = {Bartolomé, M. and Benito, G. and Luetscher, M. and Badules-Iglesias, J. and Pérez-Villar, G. and Edwards, R.L. and Moreno, A.},\n\tyear = {2021},\n\tpages = {11--28},\n}\n\n
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\n \n\n \n \n Jeannin, P.; Artigue, G.; Butscher, C.; Chang, Y.; Charlier, J.; Duran, L.; Gill, L.; Hartmann, A.; Johannet, A.; Jourde, H.; Kavousi, A.; Liesch, T.; Liu, Y.; Lüthi, M.; Malard, A.; Mazzilli, N.; Pardo-Igúzquiza, E.; Thiéry, D.; Reimann, T.; Schuler, P.; Wöhling, T.; and Wunsch, A.\n\n\n \n \n \n \n \n Karst modelling challenge 1: Results of hydrological modelling.\n \n \n \n \n\n\n \n\n\n\n Journal of Hydrology, 600: 126508. September 2021.\n \n\n\n\n
\n\n\n\n \n \n \"KarstPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@article{jeannin_karst_2021,\n\ttitle = {Karst modelling challenge 1: {Results} of hydrological modelling},\n\tvolume = {600},\n\tissn = {0022-1694},\n\tshorttitle = {Karst modelling challenge 1},\n\turl = {https://www.sciencedirect.com/science/article/pii/S0022169421005552},\n\tdoi = {10.1016/j.jhydrol.2021.126508},\n\tabstract = {The complexity of karst groundwater flow modelling is reflected by the amount of simulation approaches. The goal of the Karst Modelling Challenge (KMC) is comparing different approaches on one single system using the same data set. Thirteen teams with different computational models for simulating discharge variations at karst springs have applied their respective models on one single data set coming from the Milandre Karst Hydrogeological System (MKHS). The approaches include neural networks, reservoir models, semi-distributed models and fully distributed groundwater models. Four and a half years of hourly or daily meteorological input and hourly discharge data were provided for model calibration. The validation comprised forecasting one year of discharge, without the observed discharge data. The model performance was evaluated using the volume conservation, Nash-Sutcliffe efficiency (NSE) and the Kling-Gupta efficiency (KGE) applied on the total discharge and individual flow components. As a result, the comparison of model performances is a challenging task due to the differences in the model architecture but also required time steps: some of the models require aggregated daily steps while others could be run using hourly data, which provided some interesting differences depending on how the data was transformed. The use of instantaneous data (e.g. value at noon) produces less bias that averaging hourly data over one day. The transformation of hourly into daily data produces a decrease of Nash and KGE of 0.05 to 0.08 (i.e. from 1 to {\\textasciitilde}0.93). The resulting simulations (forecasted values for year 2016) produced KGEs ranging between 0.83 and 0.37 (0.83 to −0.24 for NSE). Although the simulations matched the monitored flows reasonably well, most models struggled to simulate baseflow conditions accurately. In general, the models that performed the best for this exercise were the global ones (Gardenia and Varkarst), with a limited number of parameters, which can be calibrated using automatic calibration procedures. The neural network models also showed a fair potential, with one providing reasonable results despite the relatively short dataset available for warming-up (4.5 years). Semi-and fully distributed models also suggested that with some more effort they could perform well. The accuracy of model predictions does not seem to increase by using models with more than 9–12 calibration parameters. An evaluation of the relative errors between the forecasted and the observed values revealed that for most models, 50\\% of the forecasted values contained more than 50\\% of difference against the observed discharge rate, with 25\\% having a difference larger than 100\\%. A significant part of the poorly forecasted values corresponded to base-flow which was surprising given that as base-flow is generally much easier to predict than peak flow. Hence, this shows that modelling approaches and criteria for the calibration are too oriented towards peak-flow sections of the hydrographs, and that improvements could be gained by more focus on the base-flow.},\n\turldate = {2023-09-03},\n\tjournal = {Journal of Hydrology},\n\tauthor = {Jeannin, Pierre-Yves and Artigue, Guillaume and Butscher, Christoph and Chang, Yong and Charlier, Jean-Baptiste and Duran, Lea and Gill, Laurence and Hartmann, Andreas and Johannet, Anne and Jourde, Hervé and Kavousi, Alireza and Liesch, Tanja and Liu, Yan and Lüthi, Martin and Malard, Arnauld and Mazzilli, Naomi and Pardo-Igúzquiza, Eulogio and Thiéry, Dominique and Reimann, Thomas and Schuler, Philip and Wöhling, Thomas and Wunsch, Andreas},\n\tmonth = sep,\n\tyear = {2021},\n\tkeywords = {Baseflow, Comparison, Efficiency criteria, Karst, Modelling, Recharge},\n\tpages = {126508},\n}\n
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\n The complexity of karst groundwater flow modelling is reflected by the amount of simulation approaches. The goal of the Karst Modelling Challenge (KMC) is comparing different approaches on one single system using the same data set. Thirteen teams with different computational models for simulating discharge variations at karst springs have applied their respective models on one single data set coming from the Milandre Karst Hydrogeological System (MKHS). The approaches include neural networks, reservoir models, semi-distributed models and fully distributed groundwater models. Four and a half years of hourly or daily meteorological input and hourly discharge data were provided for model calibration. The validation comprised forecasting one year of discharge, without the observed discharge data. The model performance was evaluated using the volume conservation, Nash-Sutcliffe efficiency (NSE) and the Kling-Gupta efficiency (KGE) applied on the total discharge and individual flow components. As a result, the comparison of model performances is a challenging task due to the differences in the model architecture but also required time steps: some of the models require aggregated daily steps while others could be run using hourly data, which provided some interesting differences depending on how the data was transformed. The use of instantaneous data (e.g. value at noon) produces less bias that averaging hourly data over one day. The transformation of hourly into daily data produces a decrease of Nash and KGE of 0.05 to 0.08 (i.e. from 1 to ~0.93). The resulting simulations (forecasted values for year 2016) produced KGEs ranging between 0.83 and 0.37 (0.83 to −0.24 for NSE). Although the simulations matched the monitored flows reasonably well, most models struggled to simulate baseflow conditions accurately. In general, the models that performed the best for this exercise were the global ones (Gardenia and Varkarst), with a limited number of parameters, which can be calibrated using automatic calibration procedures. The neural network models also showed a fair potential, with one providing reasonable results despite the relatively short dataset available for warming-up (4.5 years). Semi-and fully distributed models also suggested that with some more effort they could perform well. The accuracy of model predictions does not seem to increase by using models with more than 9–12 calibration parameters. An evaluation of the relative errors between the forecasted and the observed values revealed that for most models, 50% of the forecasted values contained more than 50% of difference against the observed discharge rate, with 25% having a difference larger than 100%. A significant part of the poorly forecasted values corresponded to base-flow which was surprising given that as base-flow is generally much easier to predict than peak flow. Hence, this shows that modelling approaches and criteria for the calibration are too oriented towards peak-flow sections of the hydrographs, and that improvements could be gained by more focus on the base-flow.\n
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\n  \n 2020\n \n \n (3)\n \n \n
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\n \n\n \n \n Steinemann O., I. S.; Grazioli S., L. M.; and Fischer U., V. C.\n\n\n \n \n \n \n Quantifying glacial erosion on a limestone bed and the relevance for landscape development.\n \n \n \n\n\n \n\n\n\n Earth Surface Processes and Landforms, 45: 1401–1417. 2020.\n \n\n\n\n
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@article{steinemann_o_quantifying_2020,\n\ttitle = {Quantifying glacial erosion on a limestone bed and the relevance for landscape development},\n\tvolume = {45},\n\tdoi = {doi.org/10.1002/esp.4812},\n\tjournal = {Earth Surface Processes and Landforms},\n\tauthor = {Steinemann O., Ivy-Ochs S., Grazioli S., Luetscher M., Fischer U., Vockenhuber C., Synal H-A.},\n\tyear = {2020},\n\tkeywords = {relevant},\n\tpages = {1401--1417},\n}\n\n
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\n \n\n \n \n Moseley, G. E.; Spötl, C.; Brandstätter, S.; Erhardt, T.; Luetscher, M.; and Edwards, R. L.\n\n\n \n \n \n \n NALPS19: sub-orbital-scale climate variability recorded in northern Alpine speleothems during the last glacial period.\n \n \n \n\n\n \n\n\n\n Climate of the Past, 16: 19–50. 2020.\n \n\n\n\n
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@article{Moseleyetal.2020,\n\ttitle = {{NALPS19}: sub-orbital-scale climate variability recorded in northern {Alpine} speleothems during the last glacial period},\n\tvolume = {16},\n\tjournal = {Climate of the Past},\n\tauthor = {Moseley, G. E. and Spötl, C. and Brandstätter, S. and Erhardt, T. and Luetscher, M. and Edwards, R. L.},\n\tyear = {2020},\n\tpages = {19--50},\n}\n\n
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\n \n\n \n \n Häuselmann, P.; Plan, L.; Pointner, P.; and Fiebig, M.\n\n\n \n \n \n \n Cosmogenic nuclide dating of cave sediments in the Eastern Alps and implications for erosion rates.\n \n \n \n\n\n \n\n\n\n International Journal of Speleology, 49: 107–118. 2020.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
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@article{Haeuselmann2020,\n\ttitle = {Cosmogenic nuclide dating of cave sediments in the {Eastern} {Alps} and implications for erosion rates},\n\tvolume = {49},\n\tdoi = {10.5038/1827-806X.49.2.2303},\n\tjournal = {International Journal of Speleology},\n\tauthor = {Häuselmann, Philipp and Plan, Lukas and Pointner, Peter and Fiebig, Markus},\n\tyear = {2020},\n\tpages = {107--118},\n}\n\n
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\n  \n 2019\n \n \n (6)\n \n \n
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\n \n\n \n \n Wilhelm, B.; Ballesteros Cánovas, J.; MacDonald, N.; Toonen, W.; Baker, V.; Barriendos, M.; Benito, G.; Brauer, A.; Corella, J.; Denniston, R.; Glaser, R.; Ionita, M.; Kahle, M.; Liu, T.; Luetscher, M.; Macklin, M.; Mudelsee, M.; Munoz, S.; Schulte, L.; St George, S.; Stoffel, M.; and Wetter, O.\n\n\n \n \n \n \n Interpreting historical, botanical, and geological evidence to aid preparations for future floods.\n \n \n \n\n\n \n\n\n\n WIREs water, 6: null. 2019.\n \n\n\n\n
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@article{Wilhelm2019,\n\ttitle = {Interpreting historical, botanical, and geological evidence to aid preparations for future floods},\n\tvolume = {6},\n\tjournal = {WIREs water},\n\tauthor = {Wilhelm, B. and Ballesteros Cánovas, J.A. and MacDonald, N. and Toonen, W.H.J. and Baker, V. and Barriendos, M. and Benito, G. and Brauer, A. and Corella, J.P. and Denniston, R. and Glaser, R. and Ionita, M. and Kahle, M. and Liu, T. and Luetscher, M. and Macklin, M. and Mudelsee, M. and Munoz, S. and Schulte, L. and St George, S. and Stoffel, M. and Wetter, O.},\n\tyear = {2019},\n\tpages = {null},\n}\n\n
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\n \n\n \n \n Vuilleumier, C; Jeannin, P Y; and Perrochet, P\n\n\n \n \n \n \n Physics-based fine-scale numerical model of a karst system (Milandre Cave, Switzerland).\n \n \n \n\n\n \n\n\n\n Hydrogeology Journal, 27 (7): 2347–2363. 2019.\n tex.lecteurs: Numericalmodeling tex.projets_isska: Groundwater hydraulics tex.thematique: Switzerland tex.utilisateur_primaire: Karst\n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n\n\n\n
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@article{Vuilleumier,\n\ttitle = {Physics-based fine-scale numerical model of a karst system ({Milandre} {Cave}, {Switzerland})},\n\tvolume = {27 (7)},\n\tabstract = {In karst aquifers, groundwater flow is often turbulent and occurs in variably saturated conduits. This implies a nonlinear response to recharge events which cannot be reproduced with the tools commonly used for groundwater flow modeling. Recent studies have shown the usefulness of using conduit flow models to simulate flow in karst systems. However existing models are built on abstract representations of the actual conduit network or at a rather coarse resolution. Such models cannot provide information on local flow conditions in the conduits or be used to simulate mass transport. In the catchment of the Milandre Cave, in the Jura Mountains of Switzerland, a good portion of the active drainage network is accessible by caving, which opens the possibility for a distributed fine-scale numerical model. This report presents the development of a hydraulic model of the downstream part of this system (1.5 km × 0.5 km) using EPA SWMM 5. The network geometry is based on a detailed cave survey. Calibration is achieved by fitting the observed hydraulic head vs. flow-rate curves. The model performs well when compared against the hydraulic heads that were monitored throughout the system. Simulated transit times are also in line with tracer test results. This confirms that the model reproduces well the physics of flow in this karst system, while being spatially distributed at a fine scale (median element size of 6 m). It can thus provide information on local flow conditions in the conduits at various water stages and be used to address mass transport problems.},\n\tjournal = {Hydrogeology Journal},\n\tauthor = {Vuilleumier, C and Jeannin, P Y and Perrochet, P},\n\tyear = {2019},\n\tnote = {tex.lecteurs: Numericalmodeling\ntex.projets\\_isska: Groundwater hydraulics\ntex.thematique: Switzerland\ntex.utilisateur\\_primaire: Karst},\n\tkeywords = {Tracer tests},\n\tpages = {2347--2363},\n}\n\n
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\n In karst aquifers, groundwater flow is often turbulent and occurs in variably saturated conduits. This implies a nonlinear response to recharge events which cannot be reproduced with the tools commonly used for groundwater flow modeling. Recent studies have shown the usefulness of using conduit flow models to simulate flow in karst systems. However existing models are built on abstract representations of the actual conduit network or at a rather coarse resolution. Such models cannot provide information on local flow conditions in the conduits or be used to simulate mass transport. In the catchment of the Milandre Cave, in the Jura Mountains of Switzerland, a good portion of the active drainage network is accessible by caving, which opens the possibility for a distributed fine-scale numerical model. This report presents the development of a hydraulic model of the downstream part of this system (1.5 km × 0.5 km) using EPA SWMM 5. The network geometry is based on a detailed cave survey. Calibration is achieved by fitting the observed hydraulic head vs. flow-rate curves. The model performs well when compared against the hydraulic heads that were monitored throughout the system. Simulated transit times are also in line with tracer test results. This confirms that the model reproduces well the physics of flow in this karst system, while being spatially distributed at a fine scale (median element size of 6 m). It can thus provide information on local flow conditions in the conduits at various water stages and be used to address mass transport problems.\n
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\n \n\n \n \n Rogerson, M.; Dublyansky, Y.; Hoffmann, D.; Luetscher, M.; Töchterle, P.; and Spötl, C.\n\n\n \n \n \n \n Enhanced Mediterranean water cycle during MIS 3 humid phases from speleothem fluid inclusions.\n \n \n \n\n\n \n\n\n\n Climate of the Past, 15: 1757–1769. 2019.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
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@article{Rogerson2019,\n\ttitle = {Enhanced {Mediterranean} water cycle during {MIS} 3 humid phases from speleothem fluid inclusions.},\n\tvolume = {15},\n\tjournal = {Climate of the Past},\n\tauthor = {Rogerson, M. and Dublyansky, Y. and Hoffmann, D.L. and Luetscher, M. and Töchterle, P. and Spötl, C.},\n\tyear = {2019},\n\tpages = {1757--1769},\n}\n\n
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\n \n\n \n \n Guerrier, B.; Doumenc, F; Roux, A; Mergui, S; and Jeannin, P.\n\n\n \n \n \n \n Climatology in shallow caves with negligible ventilation: Heat and mass transfer.\n \n \n \n\n\n \n\n\n\n International Journal of Thermal Sciences, 146: 1–15. 2019.\n tex.projets_isska: Lascaux tex.utilisateur_primaire: EW\n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@article{Guerrier_2019,\n\ttitle = {Climatology in shallow caves with negligible ventilation: {Heat} and mass transfer},\n\tvolume = {146},\n\tjournal = {International Journal of Thermal Sciences},\n\tauthor = {Guerrier, Béatrice and Doumenc, F and Roux, A and Mergui, S and Jeannin, P-Y},\n\tyear = {2019},\n\tnote = {tex.projets\\_isska: Lascaux\ntex.utilisateur\\_primaire: EW},\n\tkeywords = {Dordogne, France, Lascaux, air, climat, ventilation},\n\tpages = {1--15},\n}\n\n
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\n \n\n \n \n Gretzinger, J; Molak, M; Pfrengle, S; Urban, C.; Neukamm, J; Blant, M; Conard, N; Cupillard, C.; Dimitrijevic, V; Drucker, D; Hofman-Kaminska, E; and Kowalczyk, R\n\n\n \n \n \n \n Large-scale mitogenomic analysis of the phylogeography of the Late Pleistocene cave bear.\n \n \n \n\n\n \n\n\n\n Scientific reports. Nature.com,1–11. 2019.\n tex.utilisateur_primaire: EW\n\n\n\n
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@article{Gretzinger_2019,\n\ttitle = {Large-scale mitogenomic analysis of the phylogeography of the {Late} {Pleistocene} cave bear},\n\tjournal = {Scientific reports. Nature.com},\n\tauthor = {Gretzinger, J and Molak, M and Pfrengle, S and Urban, Ch and Neukamm, J and Blant, M and Conard, N and Cupillard, Ch and Dimitrijevic, V and Drucker, D and Hofman-Kaminska, E and Kowalczyk, R},\n\tyear = {2019},\n\tnote = {tex.utilisateur\\_primaire: EW},\n\tkeywords = {Bärenloch, Ours des cavernes, génétique, paléontologie},\n\tpages = {1--11},\n}\n\n
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\n \n\n \n \n Comas-Bru, L.; Harrison, S. P.; Werner, M.; Rehfeld, K.; Scroxton, N.; Veiga-Pires, C.; members , undefined; and working group , S.\n\n\n \n \n \n \n Evaluating model outputs using integrated global speleothem records of climate change since the last glacial.\n \n \n \n\n\n \n\n\n\n Climate of the Past, 15: 1559–1579. 2019.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
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@article{Comas_Bruetal_2019,\n\ttitle = {Evaluating model outputs using integrated global speleothem records of climate change since the last glacial},\n\tvolume = {15},\n\tjournal = {Climate of the Past},\n\tauthor = {Comas-Bru, L. and Harrison, S. P. and Werner, M. and Rehfeld, K. and Scroxton, N. and Veiga-Pires, C. and members, {and} SISAL working group},\n\tyear = {2019},\n\tpages = {1559--1579},\n}\n\n
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\n  \n 2016\n \n \n (2)\n \n \n
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\n \n\n \n \n Jeannin, P Y; Hessenauer, M; Malard, A; and Chapuis, V.\n\n\n \n \n \n \n Impact of global change on karst groundwater mineralization in the Jura Mountains.\n \n \n \n\n\n \n\n\n\n Science of the Total Environment, 541: 1208–1221. 2016.\n tex.thematique: Hydrochimie, Climat tex.utilisateur_primaire: AM\n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@article{Jeannin_2015b,\n\ttitle = {Impact of global change on karst groundwater mineralization in the {Jura} {Mountains}},\n\tvolume = {541},\n\tabstract = {Chemistry of karst groundwater is related to conditions prevailing within the karst underground as well as at the land-surface within the recharge area. It is dominated by the dissolution of calcite and/or dolomite, which is strongly triggered by the presence of high pCO2 in soils at the top of the bedrock. Dissolution (water mineralization) is clearly influenced by soil pCO2, i.e. by global changes such as land-use, agriculture practices and climate change. However, the dissolution of carbonates is considered as a quite significant carbon sink for the Earth Atmosphere. Assessing the evolution of carbonate water mineralization can thus help characterizing the evolution of the carbon sink related to carbonate dissolution. The main goal of the study is to check the presence of trends with a high statistical relevance in groundwater quality data along the past 20years. Causes potentially explaining the observed trends, such as land-use, agriculture practices and global warming are analyzed and discussed. The long term evolution of parameters related to carbonate dissolution are discussed and extrapolated as they may have consequences for the Global Carbon Cycle. The analysis is based on three independent data-sets stretching over more than 20years each, coming from more than 40 sources. Statistical tests (Mann-Kendall trend test) indicate clear trends for compounds related to groundwater mineralization: increase in temperature (by about 0.5°C/25years), decrease in pH, increase in bicarbonate (by about 5\\%), and positive or negative trends for major ions directly related to human practices. Data and analysis suggest that carbonate dissolution is quickly increasing as a consequence of climate warming. Considering the largely accepted fact that carbonate dissolution acts as carbon sink for the atmosphere, it can be postulated that the observed increase could act as a negative feedback mechanism, tending to slow down the atmospheric increase in CO2.},\n\tjournal = {Science of the Total Environment},\n\tauthor = {Jeannin, P Y and Hessenauer, M and Malard, A and Chapuis, Valentin},\n\tyear = {2016},\n\tnote = {tex.thematique: Hydrochimie, Climat\ntex.utilisateur\\_primaire: AM},\n\tkeywords = {Ajoie, CO2, Jura, Milandrine, Suisse, minéralisation, température},\n\tpages = {1208--1221},\n}\n\n
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\n Chemistry of karst groundwater is related to conditions prevailing within the karst underground as well as at the land-surface within the recharge area. It is dominated by the dissolution of calcite and/or dolomite, which is strongly triggered by the presence of high pCO2 in soils at the top of the bedrock. Dissolution (water mineralization) is clearly influenced by soil pCO2, i.e. by global changes such as land-use, agriculture practices and climate change. However, the dissolution of carbonates is considered as a quite significant carbon sink for the Earth Atmosphere. Assessing the evolution of carbonate water mineralization can thus help characterizing the evolution of the carbon sink related to carbonate dissolution. The main goal of the study is to check the presence of trends with a high statistical relevance in groundwater quality data along the past 20years. Causes potentially explaining the observed trends, such as land-use, agriculture practices and global warming are analyzed and discussed. The long term evolution of parameters related to carbonate dissolution are discussed and extrapolated as they may have consequences for the Global Carbon Cycle. The analysis is based on three independent data-sets stretching over more than 20years each, coming from more than 40 sources. Statistical tests (Mann-Kendall trend test) indicate clear trends for compounds related to groundwater mineralization: increase in temperature (by about 0.5°C/25years), decrease in pH, increase in bicarbonate (by about 5%), and positive or negative trends for major ions directly related to human practices. Data and analysis suggest that carbonate dissolution is quickly increasing as a consequence of climate warming. Considering the largely accepted fact that carbonate dissolution acts as carbon sink for the atmosphere, it can be postulated that the observed increase could act as a negative feedback mechanism, tending to slow down the atmospheric increase in CO2.\n
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\n \n\n \n \n Malard, A; Sinreich, M; and Jeannin, P Y\n\n\n \n \n \n \n A novel approach for estimating karst groundwater recharge in mountainous regions and its application in Switzerland.\n \n \n \n\n\n \n\n\n\n Hydrological Processes, 30(13): 2153–2166. 2016.\n tex.thematique: hydrogéologie, Gestion ressource, méthode tex.utilisateur_primaire: AM\n\n\n\n
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@article{Malard_2016,\n\ttitle = {A novel approach for estimating karst groundwater recharge in mountainous regions and its application in {Switzerland}},\n\tvolume = {30(13)},\n\tabstract = {A pragmatic and simple approach for estimating the groundwater recharge of karst aquifers in mountainous regions by extrapolation of the hydrological regimes of gauged and well-documented systems is presented. Specific discharge rates are derived using annual precipitation and spring measurements by taking into account catchment size and elevation which are assumed to be the dominant factors. Reference sites with high data reliability are used for calibration and regional extrapolation. This is performed with normalized values employing spatial precipitation deviations and correlation with the elevation of the catchment areas. A tiered step procedure provides minimum and maximum normalized gradients for the relationship between recharge quantity and elevation for karst regions. The normalized recharge can therefore be obtained and extrapolated for any location using the spatial precipitation variability to provide an estimate of annual groundwater recharge. The approach was applied to Switzerland (approx. 7,500 km2 of karst terrain situated between 200 and over 4,000 m a.s.l.) using annual precipitation data from meteorological stations for the years 2000 to 2011. Results show that the average recharge rates of different Swiss karst domains range from 20 to 46 L/km2s, which corresponds to an infiltration ratio between 0.6 and 0.9 of total precipitation. Despite uncertainties inherent in the approach, these results provide a benchmark for renewable karst groundwater resources in Switzerland of about 8.4 km3 per year. The approach can be applied to any other mountainous karst region, i.e. where a clear relationship between elevation, precipitation and recharge can be assumed. This article is protected by copyright. All rights reserved.},\n\tjournal = {Hydrological Processes},\n\tauthor = {Malard, A and Sinreich, M and Jeannin, P Y},\n\tyear = {2016},\n\tnote = {tex.thematique: hydrogéologie, Gestion ressource, méthode\ntex.utilisateur\\_primaire: AM},\n\tkeywords = {Suisse, précipitation, recharge, ressource},\n\tpages = {2153--2166},\n}\n\n
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\n A pragmatic and simple approach for estimating the groundwater recharge of karst aquifers in mountainous regions by extrapolation of the hydrological regimes of gauged and well-documented systems is presented. Specific discharge rates are derived using annual precipitation and spring measurements by taking into account catchment size and elevation which are assumed to be the dominant factors. Reference sites with high data reliability are used for calibration and regional extrapolation. This is performed with normalized values employing spatial precipitation deviations and correlation with the elevation of the catchment areas. A tiered step procedure provides minimum and maximum normalized gradients for the relationship between recharge quantity and elevation for karst regions. The normalized recharge can therefore be obtained and extrapolated for any location using the spatial precipitation variability to provide an estimate of annual groundwater recharge. The approach was applied to Switzerland (approx. 7,500 km2 of karst terrain situated between 200 and over 4,000 m a.s.l.) using annual precipitation data from meteorological stations for the years 2000 to 2011. Results show that the average recharge rates of different Swiss karst domains range from 20 to 46 L/km2s, which corresponds to an infiltration ratio between 0.6 and 0.9 of total precipitation. Despite uncertainties inherent in the approach, these results provide a benchmark for renewable karst groundwater resources in Switzerland of about 8.4 km3 per year. The approach can be applied to any other mountainous karst region, i.e. where a clear relationship between elevation, precipitation and recharge can be assumed. This article is protected by copyright. All rights reserved.\n
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\n  \n 2015\n \n \n (4)\n \n \n
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\n \n\n \n \n Malard, A; Jeannin, P Y; Vouillamoz, J; and Weber, E\n\n\n \n \n \n \n An integrated approach for catchment delineation and conduit-network modeling in karst aquifers: application to a site in the Swiss tabular Jura.\n \n \n \n\n\n \n\n\n\n Hydrogeology Journal, 23(7): 1341–1357. 2015.\n tex.projets_isska: PNR61 tex.thematique: Hydrogéologie, logiciel tex.utilisateur_primaire: AM\n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@article{Malard_2015a,\n\ttitle = {An integrated approach for catchment delineation and conduit-network modeling in karst aquifers: application to a site in the {Swiss} tabular {Jura}},\n\tvolume = {23(7)},\n\tjournal = {Hydrogeology Journal},\n\tauthor = {Malard, A and Jeannin, P Y and Vouillamoz, J and Weber, E},\n\tyear = {2015},\n\tnote = {tex.projets\\_isska: PNR61\ntex.thematique: Hydrogéologie, logiciel\ntex.utilisateur\\_primaire: AM},\n\tkeywords = {Ajoie, ArcGIS, Beuchire, Creugenat, Jura, Suisse, bassin alimentation, conduit, génération de réseau, script},\n\tpages = {1341--1357},\n}\n\n
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\n \n\n \n \n Jeannin, P Y; Malard, A; Rickerl, D; and Weber, E\n\n\n \n \n \n \n Assessing karst-hydraulic hazards in tunneling - the Brunnmühle spring system - Bernese Jura, Switzerland.\n \n \n \n\n\n \n\n\n\n Environmental Earth Sciences, 74(12): 7655–7670. 2015.\n tex.projets_isska: Brunnmühle A5 tex.thematique: Hydrogéologie, Géologie régionale, Tunnel tex.utilisateur_primaire: AM\n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@article{Jeannin_2015a,\n\ttitle = {Assessing karst-hydraulic hazards in tunneling - the {Brunnmühle} spring system - {Bernese} {Jura}, {Switzerland}},\n\tvolume = {74(12)},\n\tabstract = {Drilling a tunnel in a karst region requires the assessment of disturbances in the hydrogeological functioning of aquifers and flow-systems as well as disturbances for the tunnel itself. A complete characterization of the karst hydrogeological functioning and the establishment of prevention measures are essential in order to insure a suitable construction. The paper relates investigations which were conducted in the frame of the construction of a safety gallery (Sisto) in the bernese Jura (Switzerland). This gallery is located close to the outlet of a regional karst system and parallel to an existing highway tunnel, which met numerous disorders in the past due to the intersection of active karst conduits with a discharge reate exceeding 1 m3/s. The KarstALEA method was applied along the Sisto trace in order to identify sections with a high probability of karst occurrences and to characterize the type of karst related problems. The main issue turned out to be related to water head and discharge, which could potentially be cut by the tunnel construction. The system discharge rate may frequently exceed 10 m3/s, and most of this water could potentially flow into the tunnel. Therefore, a hydraulic model was set up in order to assess expected flow rates and heads if conduits are intersected during the construction. Based on this model and on meteorological and hydrological real-time measurements, a predictive model was established in order to anticipate high-flows events.},\n\tjournal = {Environmental Earth Sciences},\n\tauthor = {Jeannin, P Y and Malard, A and Rickerl, D and Weber, E},\n\tyear = {2015},\n\tnote = {tex.projets\\_isska: Brunnmühle A5\ntex.thematique: Hydrogéologie, Géologie régionale, Tunnel\ntex.utilisateur\\_primaire: AM},\n\tkeywords = {Berne, Douanne, Jura, KarstALEA, Ligerz, Suisse, Twann, Twannbach},\n\tpages = {7655--7670},\n}\n\n
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\n Drilling a tunnel in a karst region requires the assessment of disturbances in the hydrogeological functioning of aquifers and flow-systems as well as disturbances for the tunnel itself. A complete characterization of the karst hydrogeological functioning and the establishment of prevention measures are essential in order to insure a suitable construction. The paper relates investigations which were conducted in the frame of the construction of a safety gallery (Sisto) in the bernese Jura (Switzerland). This gallery is located close to the outlet of a regional karst system and parallel to an existing highway tunnel, which met numerous disorders in the past due to the intersection of active karst conduits with a discharge reate exceeding 1 m3/s. The KarstALEA method was applied along the Sisto trace in order to identify sections with a high probability of karst occurrences and to characterize the type of karst related problems. The main issue turned out to be related to water head and discharge, which could potentially be cut by the tunnel construction. The system discharge rate may frequently exceed 10 m3/s, and most of this water could potentially flow into the tunnel. Therefore, a hydraulic model was set up in order to assess expected flow rates and heads if conduits are intersected during the construction. Based on this model and on meteorological and hydrological real-time measurements, a predictive model was established in order to anticipate high-flows events.\n
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\n \n\n \n \n Ballesteros, D.; Malard, A.; Jeannin, P. Y.; Jiménez-Sánchez, M.; García-Sansegundo, J.; Meléndez-Asensio, M.; and Sendra, G.\n\n\n \n \n \n \n KARSYS hydrogeological 3D modeling of alpine karst aquifers developed into geological complex areas: Picos de Europa National Park (Spain).\n \n \n \n\n\n \n\n\n\n Environmental Earth Sciences,DOI 10.1007/s12665–015–4712–0. 2015.\n tex.projets_isska: KarstoPicos, PNR61 tex.thematique: Hydrogéologie, Géologie régionale tex.utilisateur_primaire: AM\n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@article{Ballesteros_2015b,\n\ttitle = {{KARSYS} hydrogeological {3D} modeling of alpine karst aquifers developed into geological complex areas: {Picos} de {Europa} {National} {Park} ({Spain})},\n\tabstract = {Karst aquifers are valuable groundwater resources whose management requires the use of functioning hydrogeological models. The KARSYS approach provides an explicit 3D conceptual model of the geometry and the functioning of karst aquifers that has been successfully applied in Swiss and Slovenian aquifers. In this work, KARSYS is applied in a complex geological area: the Picos de Europa National Park (Spain). The hydrogeological 3D model (500 km2) shows an alpine karst aquifer compartmentalized into 32 groundwater bodies dammed up by subvertical barriers creating elevated saturated zones (water tables at 1153 m asl) and lower ones (water tables at 145 m asl). The recharge is through 18 spring catchment areas. The groundwater flows to the saturated zones pass through vertical to inclined trajectories, and phreatic flows are oriented toward NW, NE and N. KARSYS can be applied to any geologically complex area at a regional scale, although the geological structure should be simplified and the precision in some places is low. Nevertheless, KARSYS helps to identify the hydrogeological behavior of karst areas and is a useful guide for future hydrogeological researches.},\n\tjournal = {Environmental Earth Sciences},\n\tauthor = {Ballesteros, Daniel and Malard, Arnauld and Jeannin, Pierre Yves and Jiménez-Sánchez, Montserrat and García-Sansegundo, Joaquín and Meléndez-Asensio, Mónica and Sendra, Gemma},\n\tyear = {2015},\n\tnote = {tex.projets\\_isska: KarstoPicos, PNR61\ntex.thematique: Hydrogéologie, Géologie régionale\ntex.utilisateur\\_primaire: AM},\n\tkeywords = {Cares, Espagne, KARSYS, Picos de Europa},\n\tpages = {DOI 10.1007/s12665--015--4712--0},\n}\n\n
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\n Karst aquifers are valuable groundwater resources whose management requires the use of functioning hydrogeological models. The KARSYS approach provides an explicit 3D conceptual model of the geometry and the functioning of karst aquifers that has been successfully applied in Swiss and Slovenian aquifers. In this work, KARSYS is applied in a complex geological area: the Picos de Europa National Park (Spain). The hydrogeological 3D model (500 km2) shows an alpine karst aquifer compartmentalized into 32 groundwater bodies dammed up by subvertical barriers creating elevated saturated zones (water tables at 1153 m asl) and lower ones (water tables at 145 m asl). The recharge is through 18 spring catchment areas. The groundwater flows to the saturated zones pass through vertical to inclined trajectories, and phreatic flows are oriented toward NW, NE and N. KARSYS can be applied to any geologically complex area at a regional scale, although the geological structure should be simplified and the precision in some places is low. Nevertheless, KARSYS helps to identify the hydrogeological behavior of karst areas and is a useful guide for future hydrogeological researches.\n
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\n \n\n \n \n Affolter, S; Häuselmann, A D; Fleitmann, D; Häuselmann, P.; and Leuenberger, M\n\n\n \n \n \n \n Triple isotope (∂D, ∂17O, ∂18O) study on precipitation, drip water and speleothem fluid inclusions for a Western Central European cave (NW Switzerland).\n \n \n \n\n\n \n\n\n\n Quaternary Science Reviews, 127: 73–89. 2015.\n tex.utilisateur_primaire: EW\n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@article{Affolter_2015,\n\ttitle = {Triple isotope (∂{D}, ∂{17O}, ∂{18O}) study on precipitation, drip water and speleothem fluid inclusions for a {Western} {Central} {European} cave ({NW} {Switzerland})},\n\tvolume = {127},\n\tjournal = {Quaternary Science Reviews},\n\tauthor = {Affolter, S and Häuselmann, A D and Fleitmann, D and Häuselmann, Ph and Leuenberger, M},\n\tyear = {2015},\n\tnote = {tex.utilisateur\\_primaire: EW},\n\tkeywords = {Isotope, Jura, Milandre, Suisse, inclusions fluides, précipitation},\n\tpages = {73--89},\n}\n\n
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\n  \n 2014\n \n \n (3)\n \n \n
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\n \n\n \n \n Turk, J.; Malard, A.; Jeannin, P.; Gabrovšek, F.; Petrič, M.; Ravbar, N.; Vouillamoz, J.; and Slabe, T.\n\n\n \n \n \n \n Hydrogeological interpretation of the alpine karst massif by application of a Karsys approach (Kanin case study, Julian Alps).\n \n \n \n\n\n \n\n\n\n Hydrological Processes, Published online in Wiley Online Library: DOI: 10.1002/hyp.10313. 2014.\n tex.projets_isska: SLO$_{\\textrm{K}}$ARSYS tex.thematique: Gestion ressource tex.utilisateur_primaire: AM\n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@article{Turk_2014,\n\ttitle = {Hydrogeological interpretation of the alpine karst massif by application of a {Karsys} approach ({Kanin} case study, {Julian} {Alps})},\n\tvolume = {Published online in Wiley Online Library},\n\tjournal = {Hydrological Processes},\n\tauthor = {Turk, Janez and Malard, Arnauld and Jeannin, Pierre-Yves and Gabrovšek, Franci and Petrič, Metka and Ravbar, Nataša and Vouillamoz, Jonathan and Slabe, Tadej},\n\tyear = {2014},\n\tnote = {tex.projets\\_isska: SLO$_{\\textrm{K}}$ARSYS\ntex.thematique: Gestion ressource\ntex.utilisateur\\_primaire: AM},\n\tkeywords = {Boka, Bovec, Canin, Goriuda, Kanin, Moznica, Slovénie},\n\tpages = {DOI: 10.1002/hyp.10313},\n}\n\n
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\n \n\n \n \n Lachassagne, P; Aunay, B; Frissant, N; Guilbert, M; and Malard, A\n\n\n \n \n \n \n High-resolution conceptual hydrogeological model of complex volcanic islands: a Mayotte, Comoros, case study.\n \n \n \n\n\n \n\n\n\n Terra Nova, 26: 307–321. 2014.\n tex.thematique: Hydrogéologie, Géologie régionale, Eau potable tex.utilisateur_primaire: AM\n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@article{Lachassagne_2014,\n\ttitle = {High-resolution conceptual hydrogeological model of complex volcanic islands: a {Mayotte}, {Comoros}, case study},\n\tvolume = {26},\n\tabstract = {We present a high-resolution conceptual hydrogeological model for complex basaltic volcanic islands based on Mayotte Island in the Comoros. Its geological structure and hydrogeological functioning are deduced from a large dataset: geological mapping, geophysics, some forty new boreholes, piezometric data, hydraulic conductivity, hydrochemical data, etc. We describe previously unknown deep cut-and-fill palaeovalleys. The resulting conceptual geological and hydrogeological model of the island is very different from the Hawaiian model, in that it lacks a low-elevation basal aquifer and dyke-impounded high-level aquifers. It is closer to the Canary Islands model, which has, however, not yet been described at a high-resolution scale. It does not have a continuous aquifer, but rather a discontinuous succession of perched aquifers separated by aquicludes and aquitards. This results more from the complex geological structure of the island, which has experienced several phases of volcanism, erosion and weathering, than from its age, but is also a result of the high-resolution scale of the model. High-resolution conceptual modelling is now necessary to solve problems of applied geology and hydrogeology.},\n\tjournal = {Terra Nova},\n\tauthor = {Lachassagne, P and Aunay, B and Frissant, N and Guilbert, M and Malard, A},\n\tyear = {2014},\n\tnote = {tex.thematique: Hydrogéologie, Géologie régionale, Eau potable\ntex.utilisateur\\_primaire: AM},\n\tkeywords = {Bouclier, Comores, Mayotte, Paléo vallée, basalte, basaltique, volcan, île},\n\tpages = {307--321},\n}\n\n
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\n We present a high-resolution conceptual hydrogeological model for complex basaltic volcanic islands based on Mayotte Island in the Comoros. Its geological structure and hydrogeological functioning are deduced from a large dataset: geological mapping, geophysics, some forty new boreholes, piezometric data, hydraulic conductivity, hydrochemical data, etc. We describe previously unknown deep cut-and-fill palaeovalleys. The resulting conceptual geological and hydrogeological model of the island is very different from the Hawaiian model, in that it lacks a low-elevation basal aquifer and dyke-impounded high-level aquifers. It is closer to the Canary Islands model, which has, however, not yet been described at a high-resolution scale. It does not have a continuous aquifer, but rather a discontinuous succession of perched aquifers separated by aquicludes and aquitards. This results more from the complex geological structure of the island, which has experienced several phases of volcanism, erosion and weathering, than from its age, but is also a result of the high-resolution scale of the model. High-resolution conceptual modelling is now necessary to solve problems of applied geology and hydrogeology.\n
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\n \n\n \n \n Gabrovšek, F.; Häuselmann, P.; and Audra, P.\n\n\n \n \n \n \n ‘Looping caves’ versus ‘water table caves’: The role of base-level changes and recharge variations in cave development.\n \n \n \n\n\n \n\n\n\n Geomorphology, 204: 683–691. 2014.\n ISBN: 0169-555X tex.howpublished: Journal tex.thematique: géomorphologie, spéléogénèse tex.utilisateur_primaire: AM\n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@article{Gabrovsek_2014,\n\ttitle = {‘{Looping} caves’ versus ‘water table caves’: {The} role of base-level changes and recharge variations in cave development},\n\tvolume = {204},\n\tabstract = {The vertical organisation of karst conduit networks has been the focus of speleogenetic studies for more than a century. The four state model of Ford and Ewers (1978), which still is considered as the most general, relates the geometry of caves to the frequency of permeable fissures. The model suggests that the ‘water table caves’ are common in areas with high fissure frequency, which is often the case in natural settings. However, in Alpine karst systems, water table caves are more the exception than the rule. Alpine speleogenesis is influenced by high uplift, valley incision rates and irregular recharge. To study the potential role of these processes for speleogenesis in the dimensions of length and depth, we apply a simple mathematical model based on coupling of flow, dissolution and transport. We assume a master conduit draining the water to the spring at a base level. Incision of the valley triggers evolution of deeper flow pathways, which are initially in a proto-conduit state. The master conduit evolves into a canyon following the valley incision, while the deep pathways evolve towards maturity and tend to capture the water from the master conduits. Two outcomes are possible: a) deep pathways evolve fast enough to capture all the recharge, leaving the master conduit dry; or b) the canyon reaches the level of deep pathways before these evolve to maturity. We introduce the Loop-to-Canyon Ratio (LCR), which predicts which of the two outcomes is more likely to occur in certain settings. Our model is extended to account for transient flow conditions. In the case of an undulating master conduit, floodwater is stored in troughs after the flood retreat. This water seeps through sub-vertical fractures (‘soutirages’) connecting the master conduit with the deep pathways. Therefore, the loops evolve also during the dry season, and the LCR is considerably increased. Although the model is based on several approximations, it leads to some important conclusions for vertical organisation of karst conduit networks and stresses the importance of base-level changes and transient recharge conditions. It therefore gives an explanation of speleogenesis that relies much more on the dynamic nature of water flow than on the static fracture density},\n\tjournal = {Geomorphology},\n\tauthor = {Gabrovšek, Franci and Häuselmann, Philipp and Audra, Philippe},\n\tyear = {2014},\n\tnote = {ISBN: 0169-555X\ntex.howpublished: Journal\ntex.thematique: géomorphologie, spéléogénèse\ntex.utilisateur\\_primaire: AM},\n\tkeywords = {conduit, génération, phréatique, recharge},\n\tpages = {683--691},\n}\n\n
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\n The vertical organisation of karst conduit networks has been the focus of speleogenetic studies for more than a century. The four state model of Ford and Ewers (1978), which still is considered as the most general, relates the geometry of caves to the frequency of permeable fissures. The model suggests that the ‘water table caves’ are common in areas with high fissure frequency, which is often the case in natural settings. However, in Alpine karst systems, water table caves are more the exception than the rule. Alpine speleogenesis is influenced by high uplift, valley incision rates and irregular recharge. To study the potential role of these processes for speleogenesis in the dimensions of length and depth, we apply a simple mathematical model based on coupling of flow, dissolution and transport. We assume a master conduit draining the water to the spring at a base level. Incision of the valley triggers evolution of deeper flow pathways, which are initially in a proto-conduit state. The master conduit evolves into a canyon following the valley incision, while the deep pathways evolve towards maturity and tend to capture the water from the master conduits. Two outcomes are possible: a) deep pathways evolve fast enough to capture all the recharge, leaving the master conduit dry; or b) the canyon reaches the level of deep pathways before these evolve to maturity. We introduce the Loop-to-Canyon Ratio (LCR), which predicts which of the two outcomes is more likely to occur in certain settings. Our model is extended to account for transient flow conditions. In the case of an undulating master conduit, floodwater is stored in troughs after the flood retreat. This water seeps through sub-vertical fractures (‘soutirages’) connecting the master conduit with the deep pathways. Therefore, the loops evolve also during the dry season, and the LCR is considerably increased. Although the model is based on several approximations, it leads to some important conclusions for vertical organisation of karst conduit networks and stresses the importance of base-level changes and transient recharge conditions. It therefore gives an explanation of speleogenesis that relies much more on the dynamic nature of water flow than on the static fracture density\n
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\n  \n 2013\n \n \n (1)\n \n \n
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\n \n\n \n \n Jeannin, P. Y.; Eichenberger, U; Sinreich, M; Vouillamoz, J; Malard, A; and Weber, E\n\n\n \n \n \n \n KARSYS: a pragmatic approach to karst hydrogeological system conceptualisation. Assessment of groundwater reserves and resources in Switzerland.\n \n \n \n\n\n \n\n\n\n Environmental Earth Sciences, 69(3): 999–1013. 2013.\n ISBN: DOI 10.1007/s12665-012-1983-6 Publisher: Swiss Institut for Speleology and Karst Studies, La Chaux-de-Fonds, Switzerland tex.lecteurs: JV, LT, AM tex.projets_isska: PNR61, KARSYS$_{\\textrm{D}}$avos tex.thematique: Hydrogélogie, Géologie tex.utilisateur_primaire: JV\n\n\n\n
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@article{Jeannin_2013,\n\ttitle = {{KARSYS}: a pragmatic approach to karst hydrogeological system conceptualisation. {Assessment} of groundwater reserves and resources in {Switzerland}},\n\tvolume = {69(3)},\n\tjournal = {Environmental Earth Sciences},\n\tauthor = {Jeannin, Pierre Yves and Eichenberger, U and Sinreich, M and Vouillamoz, J and Malard, A and Weber, E},\n\tyear = {2013},\n\tnote = {ISBN: DOI 10.1007/s12665-012-1983-6\nPublisher: Swiss Institut for Speleology and Karst Studies, La Chaux-de-Fonds, Switzerland\ntex.lecteurs: JV, LT, AM\ntex.projets\\_isska: PNR61, KARSYS$_{\\textrm{D}}$avos\ntex.thematique: Hydrogélogie, Géologie\ntex.utilisateur\\_primaire: JV},\n\tkeywords = {3D, KARSYS, Suisse, modèle conceptuel, ressources, réserves},\n\tpages = {999--1013},\n}\n\n
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\n  \n 2011\n \n \n (1)\n \n \n
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\n \n\n \n \n Boch, R.; Cheng, H.; Spötl, C.; Edwards, R.; Wang, X.; and Häuselmann, P.\n\n\n \n \n \n \n NALPS: a precisely dated European climate record 120-60 ka.\n \n \n \n\n\n \n\n\n\n Clim. Past, 7: 1247–1259. 2011.\n \n\n\n\n
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@article{boch_nalps_2011,\n\ttitle = {{NALPS}: a precisely dated {European} climate record 120-60 ka},\n\tvolume = {7},\n\tjournal = {Clim. Past},\n\tauthor = {Boch, Ronny and Cheng, Hai and Spötl, Christoph and Edwards, R.L. and Wang, X. and Häuselmann, Philipp},\n\tyear = {2011},\n\tpages = {1247--1259},\n}\n\n
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\n  \n 2008\n \n \n (2)\n \n \n
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\n \n\n \n \n Luetscher, M.; Lismonde, B.; and Jeannin, P.\n\n\n \n \n \n \n \n Heat exchanges in the heterothermic zone of a karst system: Monlesi cave, Swiss Jura Mountains.\n \n \n \n \n\n\n \n\n\n\n Journal of Geophysical Research, 113(F2): F02025. June 2008.\n \n\n\n\n
\n\n\n\n \n \n \"HeatPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n  \n \n 2 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
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@article{luetscher_heat_2008,\n\ttitle = {Heat exchanges in the heterothermic zone of a karst system: {Monlesi} cave, {Swiss} {Jura} {Mountains}},\n\tvolume = {113},\n\tissn = {0148-0227},\n\tshorttitle = {Heat exchanges in the heterothermic zone of a karst system},\n\turl = {http://doi.wiley.com/10.1029/2007JF000892},\n\tdoi = {10.1029/2007JF000892},\n\tlanguage = {en},\n\tnumber = {F2},\n\turldate = {2022-02-18},\n\tjournal = {Journal of Geophysical Research},\n\tauthor = {Luetscher, Marc and Lismonde, Baudouin and Jeannin, Pierre-Yves},\n\tmonth = jun,\n\tyear = {2008},\n\tpages = {F02025},\n}\n\n
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\n \n\n \n \n Häuselmann, P.\n\n\n \n \n \n \n Surface corrosion of an Alpine karren field: recent measures at Innerbergli (Siebenhengste, Switzerland).\n \n \n \n\n\n \n\n\n\n Int. Journal of Speleology, 37(2): 107–111. 2008.\n Type: Journal Article\n\n\n\n
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@article{hauselmann_surface_2008,\n\ttitle = {Surface corrosion of an {Alpine} karren field: recent measures at {Innerbergli} ({Siebenhengste}, {Switzerland})},\n\tvolume = {37},\n\tnumber = {2},\n\tjournal = {Int. Journal of Speleology},\n\tauthor = {Häuselmann, Ph.},\n\tyear = {2008},\n\tnote = {Type: Journal Article},\n\tpages = {107--111},\n}\n\n
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\n  \n 2007\n \n \n (2)\n \n \n
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\n \n\n \n \n Perrin, J; Jeannin, P Y; and Cornaton, F\n\n\n \n \n \n \n The role of tributary mixing in chemical variations at a karst spring, Milandre, Switzerland.\n \n \n \n\n\n \n\n\n\n Journal of Hydrology, 332: 158–173. 2007.\n tex.lecteurs: LT tex.projets_isska: PNR61 tex.thematique: Hydrogéologie tex.utilisateur_primaire: AH\n\n\n\n
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@article{Perrin2007,\n\ttitle = {The role of tributary mixing in chemical variations at a karst spring, {Milandre}, {Switzerland}},\n\tvolume = {332},\n\tabstract = {Solute concentration variations during flood events were investigated in a karst aquifer of the Swiss Jura. Observations were made at the spring, and at the three main subterraneous tributaries feeding the spring. A simple transient flow and transport numerical model was able to reproduce chemographs and hydrographs observed at the spring, as a result of a mixing of the concentration and discharge of the respective tributaries. Sensitivity analysis carried out with the model showed that it is possible to produce chemical variations at the spring even if all tributaries have constant (but different for each of them) solute concentrations. This process is called tributary mixing. The good match between observed and modelled curves indicate that, in the phreatic zone, tributary mixing is probably an important process that shapes spring chemographs. Chemical reactions and other mixing components (e.g. from low permeability volumes) have a limited influence. Dissolution-related (calcium, bicarbonate, specific conductance) and pollution-related parameters (nitrate, chloride, potassium) displayed slightly different behaviours: during moderate flood events, the former showed limited variations compared to the latter. During large flood events, both presented chemographs with significant changes. No significant event water participates in moderate flood events and tributary mixing will be the major process shaping chemographs. Variations are greater for parameters with higher spatial variability (e.g. pollution-related). Whereas for large flood events, the contribution of event water becomes significant and influences the chemographs of all the parameters. As a result, spring water vulnerability to an accidental pollution is low during moderate flood events and under base flow conditions. It strongly increases during large flood events, because event water contributes to the spring discharge. (c) 2006 Elsevier B.V. All rights reserved},\n\tjournal = {Journal of Hydrology},\n\tauthor = {Perrin, J and Jeannin, P Y and Cornaton, F},\n\tyear = {2007},\n\tnote = {tex.lecteurs: LT\ntex.projets\\_isska: PNR61\ntex.thematique: Hydrogéologie\ntex.utilisateur\\_primaire: AH},\n\tkeywords = {Jura, Milandre, Suisse, chemographe des sources, chimie des eaux souterraines, modélisation numérique, mélange, transport de solution},\n\tpages = {158--173},\n}\n\n
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\n Solute concentration variations during flood events were investigated in a karst aquifer of the Swiss Jura. Observations were made at the spring, and at the three main subterraneous tributaries feeding the spring. A simple transient flow and transport numerical model was able to reproduce chemographs and hydrographs observed at the spring, as a result of a mixing of the concentration and discharge of the respective tributaries. Sensitivity analysis carried out with the model showed that it is possible to produce chemical variations at the spring even if all tributaries have constant (but different for each of them) solute concentrations. This process is called tributary mixing. The good match between observed and modelled curves indicate that, in the phreatic zone, tributary mixing is probably an important process that shapes spring chemographs. Chemical reactions and other mixing components (e.g. from low permeability volumes) have a limited influence. Dissolution-related (calcium, bicarbonate, specific conductance) and pollution-related parameters (nitrate, chloride, potassium) displayed slightly different behaviours: during moderate flood events, the former showed limited variations compared to the latter. During large flood events, both presented chemographs with significant changes. No significant event water participates in moderate flood events and tributary mixing will be the major process shaping chemographs. Variations are greater for parameters with higher spatial variability (e.g. pollution-related). Whereas for large flood events, the contribution of event water becomes significant and influences the chemographs of all the parameters. As a result, spring water vulnerability to an accidental pollution is low during moderate flood events and under base flow conditions. It strongly increases during large flood events, because event water contributes to the spring discharge. (c) 2006 Elsevier B.V. All rights reserved\n
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\n \n\n \n \n Häuselmann, P; Granger, D E; Jeannin, P Y; and Lauritzen, S E\n\n\n \n \n \n \n Abrupt glacial valley incision at 0.8 Ma dated from cave deposits in Switzerland.\n \n \n \n\n\n \n\n\n\n Geology, 35: 143–146. 2007.\n tex.lecteurs: LT tex.thematique: Géologie, Hydrogéologie tex.utilisateur_primaire: AH\n\n\n\n
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@article{Haeuselmann_2007b,\n\ttitle = {Abrupt glacial valley incision at 0.8 {Ma} dated from cave deposits in {Switzerland}},\n\tvolume = {35},\n\tabstract = {Glacial erosion dramatically alters mountain landscapes, but the pace at which glaciers carve a previously fluvial landscape remains poorly defined because long-term valley incision rates are difficult to measure. Here we reconstruct the lowering history of the Aare Valley, Switzerland, over the past 4 m.y. by dating cave sediments with cosmogenic Al-26 and Be-10. Incision accelerated from similar to 120 m/m.y. to similar to 1200 m/m.y. at 0.8-1.0 Ma, at least 1 m.y. after the onset of local glaciation. Rapid incision may have been triggered by lowering of the equilibrium line altitude at the mid-Pleistocene climate transition},\n\tjournal = {Geology},\n\tauthor = {Häuselmann, P and Granger, D E and Jeannin, P Y and Lauritzen, S E},\n\tyear = {2007},\n\tnote = {tex.lecteurs: LT\ntex.thematique: Géologie, Hydrogéologie\ntex.utilisateur\\_primaire: AH},\n\tkeywords = {Berne, Siebenhengste-Hohgant, Suisse, Vallée de l'Aar, Vallée glaciaire, cosmogénique, grotte, spéléogenèse, taux d'érosion glaciaire},\n\tpages = {143--146},\n}\n\n
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\n Glacial erosion dramatically alters mountain landscapes, but the pace at which glaciers carve a previously fluvial landscape remains poorly defined because long-term valley incision rates are difficult to measure. Here we reconstruct the lowering history of the Aare Valley, Switzerland, over the past 4 m.y. by dating cave sediments with cosmogenic Al-26 and Be-10. Incision accelerated from similar to 120 m/m.y. to similar to 1200 m/m.y. at 0.8-1.0 Ma, at least 1 m.y. after the onset of local glaciation. Rapid incision may have been triggered by lowering of the equilibrium line altitude at the mid-Pleistocene climate transition\n
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\n  \n 2006\n \n \n (1)\n \n \n
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\n \n\n \n \n Audra, P; Bini, A; Gabrovsek, F; Häuselmann, P; Hobléa, F; Jeannin, P Y; Kunaver, J; Monbaron, M; Sustersic, F; Tognini, P; Trimmel, H; and Wildberger, A\n\n\n \n \n \n \n Cave genesis in the Alps between the Miocene and today: a review.\n \n \n \n\n\n \n\n\n\n Zeitschrift für Geomorphologie, NF, 50(2): 153–176. 2006.\n tex.projets_isska: PNR61 tex.thematique: Spéléogénèse, tex.utilisateur_primaire: AM\n\n\n\n
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@article{Audra_2006,\n\ttitle = {Cave genesis in the {Alps} between the {Miocene} and today: a review},\n\tvolume = {50(2)},\n\tjournal = {Zeitschrift für Geomorphologie, NF},\n\tauthor = {Audra, P and Bini, A and Gabrovsek, F and Häuselmann, P and Hobléa, F and Jeannin, P Y and Kunaver, J and Monbaron, M and Sustersic, F and Tognini, P and Trimmel, H and Wildberger, A},\n\tyear = {2006},\n\tnote = {tex.projets\\_isska: PNR61\ntex.thematique: Spéléogénèse,\ntex.utilisateur\\_primaire: AM},\n\tkeywords = {Alpes, Europe, Suisse, aquifère},\n\tpages = {153--176},\n}\n\n
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\n  \n 2005\n \n \n (1)\n \n \n
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\n \n\n \n \n Kovács, A.; Perrochet, P.; Király, L.; and Jeannin, P.\n\n\n \n \n \n \n A quantitative method for the characterisation of karst aquifers based on spring hydrograph analysis.\n \n \n \n\n\n \n\n\n\n Journal of Hydrology, 303. 2005.\n \n\n\n\n
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@article{Kovacs2005,\n\ttitle = {A quantitative method for the characterisation of karst aquifers based on spring hydrograph analysis},\n\tvolume = {303},\n\tdoi = {10.1016/j.jhydrol.2004.08.023},\n\tjournal = {Journal of Hydrology},\n\tauthor = {Kovács, Attila and Perrochet, Pierre and Király, László and Jeannin, P.-Y},\n\tyear = {2005},\n}\n\n
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\n  \n 2004\n \n \n (1)\n \n \n
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\n \n\n \n \n Luetscher, M.; and Jeannin, P. Y.\n\n\n \n \n \n \n Temperature distribution in karst systems: the role of air and water fluxes.\n \n \n \n\n\n \n\n\n\n Terra Nova, 16: 344–350. 2004.\n tex.lecteurs: Sabrina, LT tex.projets_isska: PNR61; KARSYS$_{\\textrm{D}}$avos tex.thematique: Géologie, Géothermie tex.utilisateur_primaire: AH\n\n\n\n
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@article{Luetscher_2004,\n\ttitle = {Temperature distribution in karst systems: the role of air and water fluxes},\n\tvolume = {16},\n\tabstract = {A better understanding of heat fluxes and temperature distribution in continental rocks is of great importance for many engineering aspects (tunnelling, mining, geothermal research, etc.). This paper aims at providing a conceptual model of temperature distribution in karst environments which display thermal ‘anomalies’ as compared with other rocks. In temperate regions, water circulation is usually high enough to ‘drain-out’ completely the geothermal heat flux at the bottom of karst systems (phreatic zone). A theoretical approach based on temperature measurements carried out in deep caves and boreholes demonstrates, however, that air circulation can largely dominate water infiltration in the karst vadose zone, which can be as thick as 2000 m. Consequently, temperature gradients within this zone are similar to the lapse rate of humid air ( 0.5  C 100 m)1). Yet, this value depends on the regional climatic context and might present some significant variations},\n\tjournal = {Terra Nova},\n\tauthor = {Luetscher, M. and Jeannin, P. Y.},\n\tyear = {2004},\n\tnote = {tex.lecteurs: Sabrina, LT\ntex.projets\\_isska: PNR61; KARSYS$_{\\textrm{D}}$avos\ntex.thematique: Géologie, Géothermie\ntex.utilisateur\\_primaire: AH},\n\tkeywords = {Karst, Simplon, Suisse, Valais, flux de chaleur, géothermie, température, échange d'énergie},\n\tpages = {344--350},\n}\n\n
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\n A better understanding of heat fluxes and temperature distribution in continental rocks is of great importance for many engineering aspects (tunnelling, mining, geothermal research, etc.). This paper aims at providing a conceptual model of temperature distribution in karst environments which display thermal ‘anomalies’ as compared with other rocks. In temperate regions, water circulation is usually high enough to ‘drain-out’ completely the geothermal heat flux at the bottom of karst systems (phreatic zone). A theoretical approach based on temperature measurements carried out in deep caves and boreholes demonstrates, however, that air circulation can largely dominate water infiltration in the karst vadose zone, which can be as thick as 2000 m. Consequently, temperature gradients within this zone are similar to the lapse rate of humid air ( 0.5 C 100 m)1). Yet, this value depends on the regional climatic context and might present some significant variations\n
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\n  \n 2003\n \n \n (1)\n \n \n
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\n \n\n \n \n Häuselmann, P; Jeannin, P Y; and Monbaron, M\n\n\n \n \n \n \n Role of epiphreatic flow and soutirages in conduit morphogenesis: the Bärenschacht example (BE, Switzerland).\n \n \n \n\n\n \n\n\n\n Zeitschrift für Geomorphologie, NF, 47(2): 171–190. 2003.\n tex.projets_isska: PNR61 tex.thematique: Spéléogénèse, tex.utilisateur_primaire: AM\n\n\n\n
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@article{Haeuselmann2003b,\n\ttitle = {Role of epiphreatic flow and soutirages in conduit morphogenesis: the {Bärenschacht} example ({BE}, {Switzerland})},\n\tvolume = {47(2)},\n\tjournal = {Zeitschrift für Geomorphologie, NF},\n\tauthor = {Häuselmann, P and Jeannin, P Y and Monbaron, M},\n\tyear = {2003},\n\tnote = {tex.projets\\_isska: PNR61\ntex.thematique: Spéléogénèse,\ntex.utilisateur\\_primaire: AM},\n\tkeywords = {Berne, Siebenhengste, Suisse},\n\tpages = {171--190},\n}\n\n
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\n  \n 2002\n \n \n (1)\n \n \n
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\n \n\n \n \n Häuselmann, P.; Jeannin, P.; Monbaron, M.; and Lauritzen, S.\n\n\n \n \n \n \n Reconstruction of Alpine Cenozoic paleorelief through the analysis of caves at Siebenhengste (BE, Switzerland).\n \n \n \n\n\n \n\n\n\n Geodinamica Acta, 15: 261–276. 2002.\n Type: Journal Article\n\n\n\n
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@article{hauselmann_reconstruction_2002,\n\ttitle = {Reconstruction of {Alpine} {Cenozoic} paleorelief through the analysis of caves at {Siebenhengste} ({BE}, {Switzerland})},\n\tvolume = {15},\n\tjournal = {Geodinamica Acta},\n\tauthor = {Häuselmann, Ph. and Jeannin, P.-Y. and Monbaron, M. and Lauritzen, S.E.},\n\tyear = {2002},\n\tnote = {Type: Journal Article},\n\tpages = {261--276},\n}\n\n
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