How does multiscale modelling and inclusion of realistic palaeobathymetry affect numerical simulation of the Storegga Slide tsunami?. Hill, J., Collins, G. S, Avdis, A., Kramer, S. C, & Piggott, M. D Ocean Modelling, 83(0):11–25, November, 2014. doi abstract bibtex Abstract The ∼8.15 ka Storegga submarine slide was a large (∼3000 km3), tsunamigenic slide off the coast of Norway. The resulting tsunami had run-up heights of around 10–20 m on the Norwegian coast, over 12 m in Shetland, 3–6 m on the Scottish mainland coast and reached as far as Greenland. Accurate numerical simulations of Storegga require high spatial resolution near the coasts, particularly near tsunami run-up observations, and also in the slide region. However, as the computational domain must span the whole of the Norwegian-Greenland sea, employing uniformly high spatial resolution is computationally prohibitive. To overcome this problem, we present a multiscale numerical model of the Storegga slide-generated tsunami where spatial resolution varies from 500 m to 50 km across the entire Norwegian-Greenland sea domain to optimally resolve the slide region, important coastlines and bathymetric changes. We compare results from our multiscale model to previous results using constant-resolution models and show that accounting for changes in bathymetry since 8.15 ka, neglected in previous numerical studies of the Storegga slide-tsunami, improves the agreement between the model and inferred run-up heights in specific locations, especially in the Shetlands, where maximum run-up height increased from 8 m (modern bathymetry) to 13 m (palaeobathymetry). By tracking the Storegga tsunami as far south as the southern North sea, we also found that wave heights were high enough to inundate Doggerland, an island in the southern North Sea prior to sea level rise over the last 8 ka.
@ARTICLE{Hill2014-jo,
title = "{How does multiscale modelling and inclusion of realistic
palaeobathymetry affect numerical simulation of the Storegga
Slide tsunami?}",
author = "Hill, Jon and Collins, Gareth S and Avdis, Alexandros and Kramer,
Stephan C and Piggott, Matthew D",
abstract = "Abstract The ∼8.15 ka Storegga submarine slide was a large (∼3000
km3), tsunamigenic slide off the coast of Norway. The resulting
tsunami had run-up heights of around 10--20 m on the Norwegian
coast, over 12 m in Shetland, 3--6 m on the Scottish mainland
coast and reached as far as Greenland. Accurate numerical
simulations of Storegga require high spatial resolution near the
coasts, particularly near tsunami run-up observations, and also
in the slide region. However, as the computational domain must
span the whole of the Norwegian-Greenland sea, employing
uniformly high spatial resolution is computationally prohibitive.
To overcome this problem, we present a multiscale numerical model
of the Storegga slide-generated tsunami where spatial resolution
varies from 500 m to 50 km across the entire Norwegian-Greenland
sea domain to optimally resolve the slide region, important
coastlines and bathymetric changes. We compare results from our
multiscale model to previous results using constant-resolution
models and show that accounting for changes in bathymetry since
8.15 ka, neglected in previous numerical studies of the Storegga
slide-tsunami, improves the agreement between the model and
inferred run-up heights in specific locations, especially in the
Shetlands, where maximum run-up height increased from 8 m (modern
bathymetry) to 13 m (palaeobathymetry). By tracking the Storegga
tsunami as far south as the southern North sea, we also found
that wave heights were high enough to inundate Doggerland, an
island in the southern North Sea prior to sea level rise over the
last 8 ka.",
journal = "Ocean Modelling",
volume = 83,
number = 0,
pages = "11--25",
month = nov,
year = 2014,
keywords = "Submarine slide; Storegga; Tsunami; Numerical modelling;
Multiscale",
issn = "1463-5003",
doi = "10.1016/j.ocemod.2014.08.007"
}
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D"],"year":2014,"bibtype":"article","biburl":"https://raw.githubusercontent.com/EnvModellingGroup/EnvModellingGroup.github.io/master/publications.bib","bibdata":{"bibtype":"article","type":"article","title":"How does multiscale modelling and inclusion of realistic palaeobathymetry affect numerical simulation of the Storegga Slide tsunami?","author":[{"propositions":[],"lastnames":["Hill"],"firstnames":["Jon"],"suffixes":[]},{"propositions":[],"lastnames":["Collins"],"firstnames":["Gareth","S"],"suffixes":[]},{"propositions":[],"lastnames":["Avdis"],"firstnames":["Alexandros"],"suffixes":[]},{"propositions":[],"lastnames":["Kramer"],"firstnames":["Stephan","C"],"suffixes":[]},{"propositions":[],"lastnames":["Piggott"],"firstnames":["Matthew","D"],"suffixes":[]}],"abstract":"Abstract The ∼8.15 ka Storegga submarine slide was a large (∼3000 km3), tsunamigenic slide off the coast of Norway. The resulting tsunami had run-up heights of around 10–20 m on the Norwegian coast, over 12 m in Shetland, 3–6 m on the Scottish mainland coast and reached as far as Greenland. Accurate numerical simulations of Storegga require high spatial resolution near the coasts, particularly near tsunami run-up observations, and also in the slide region. However, as the computational domain must span the whole of the Norwegian-Greenland sea, employing uniformly high spatial resolution is computationally prohibitive. To overcome this problem, we present a multiscale numerical model of the Storegga slide-generated tsunami where spatial resolution varies from 500 m to 50 km across the entire Norwegian-Greenland sea domain to optimally resolve the slide region, important coastlines and bathymetric changes. We compare results from our multiscale model to previous results using constant-resolution models and show that accounting for changes in bathymetry since 8.15 ka, neglected in previous numerical studies of the Storegga slide-tsunami, improves the agreement between the model and inferred run-up heights in specific locations, especially in the Shetlands, where maximum run-up height increased from 8 m (modern bathymetry) to 13 m (palaeobathymetry). By tracking the Storegga tsunami as far south as the southern North sea, we also found that wave heights were high enough to inundate Doggerland, an island in the southern North Sea prior to sea level rise over the last 8 ka.","journal":"Ocean Modelling","volume":"83","number":"0","pages":"11–25","month":"November","year":"2014","keywords":"Submarine slide; Storegga; Tsunami; Numerical modelling; Multiscale","issn":"1463-5003","doi":"10.1016/j.ocemod.2014.08.007","bibtex":"@ARTICLE{Hill2014-jo,\n title = \"{How does multiscale modelling and inclusion of realistic\n palaeobathymetry affect numerical simulation of the Storegga\n Slide tsunami?}\",\n author = \"Hill, Jon and Collins, Gareth S and Avdis, Alexandros and Kramer,\n Stephan C and Piggott, Matthew D\",\n abstract = \"Abstract The ∼8.15 ka Storegga submarine slide was a large (∼3000\n km3), tsunamigenic slide off the coast of Norway. The resulting\n tsunami had run-up heights of around 10--20 m on the Norwegian\n coast, over 12 m in Shetland, 3--6 m on the Scottish mainland\n coast and reached as far as Greenland. Accurate numerical\n simulations of Storegga require high spatial resolution near the\n coasts, particularly near tsunami run-up observations, and also\n in the slide region. However, as the computational domain must\n span the whole of the Norwegian-Greenland sea, employing\n uniformly high spatial resolution is computationally prohibitive.\n To overcome this problem, we present a multiscale numerical model\n of the Storegga slide-generated tsunami where spatial resolution\n varies from 500 m to 50 km across the entire Norwegian-Greenland\n sea domain to optimally resolve the slide region, important\n coastlines and bathymetric changes. We compare results from our\n multiscale model to previous results using constant-resolution\n models and show that accounting for changes in bathymetry since\n 8.15 ka, neglected in previous numerical studies of the Storegga\n slide-tsunami, improves the agreement between the model and\n inferred run-up heights in specific locations, especially in the\n Shetlands, where maximum run-up height increased from 8 m (modern\n bathymetry) to 13 m (palaeobathymetry). By tracking the Storegga\n tsunami as far south as the southern North sea, we also found\n that wave heights were high enough to inundate Doggerland, an\n island in the southern North Sea prior to sea level rise over the\n last 8 ka.\",\n journal = \"Ocean Modelling\",\n volume = 83,\n number = 0,\n pages = \"11--25\",\n month = nov,\n year = 2014,\n keywords = \"Submarine slide; Storegga; Tsunami; Numerical modelling;\n Multiscale\",\n issn = \"1463-5003\",\n doi = \"10.1016/j.ocemod.2014.08.007\"\n}\n\n","author_short":["Hill, J.","Collins, G. S","Avdis, A.","Kramer, S. C","Piggott, M. 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