@article{kunz_surface_2020,
	title = {Surface flux estimates derived from {UAS}-based mole fraction measurements by means of a nocturnal boundary layer budget approach},
	volume = {13},
	issn = {1867-8548},
	url = {https://amt.copernicus.org/articles/13/1671/2020/},
	doi = {10.5194/amt-13-1671-2020},
	abstract = {Abstract. The carbon exchange between ecosystems and the atmosphere has a large
influence on the Earth system and specifically on the climate. This
exchange is therefore being studied intensively, often using the eddy
covariance (EC) technique. EC measurements provide reliable results
under turbulent atmospheric conditions, but under calm and stable
conditions – as they often occur at night – these measurements
are known to misrepresent exchange fluxes. Nocturnal boundary layer
(NBL) budgets can provide independent flux estimates under stable
conditions, but their application so far has been limited by rather
high cost and practical difficulties. Unmanned aircraft systems (UASs)
equipped with trace gas analysers have the potential to make this
method more accessible. We present the methodology and results of
a proof-of-concept study carried out during the ScaleX 2016 campaign.
Successive vertical profiles of carbon dioxide dry-air mole fraction
in the NBL were taken with a compact analyser carried by a UAS. We
estimate an average carbon dioxide flux of 12 µmolm-2s-1,
which is plausible for nocturnal respiration in this region in summer.
Transport modelling suggests that the NBL budgets represent an area
on the order of 100 km2.},
	language = {en},
	number = {4},
	urldate = {2022-11-02},
	journal = {Atmospheric Measurement Techniques},
	author = {Kunz, Martin and Lavric, Jost V. and Gasche, Rainer and Gerbig, Christoph and Grant, Richard H. and Koch, Frank-Thomas and Schumacher, Marcus and Wolf, Benjamin and Zeeman, Matthias},
	month = apr,
	year = {2020},
	pages = {1671--1692},
}

{"_id":"d7nKdSrZZ6g3qghJu","bibbaseid":"kunz-lavric-gasche-gerbig-grant-koch-schumacher-wolf-etal-surfacefluxestimatesderivedfromuasbasedmolefractionmeasurementsbymeansofanocturnalboundarylayerbudgetapproach-2020","author_short":["Kunz, M.","Lavric, J. V.","Gasche, R.","Gerbig, C.","Grant, R. H.","Koch, F.","Schumacher, M.","Wolf, B.","Zeeman, M."],"bibdata":{"bibtype":"article","type":"article","title":"Surface flux estimates derived from UAS-based mole fraction measurements by means of a nocturnal boundary layer budget approach","volume":"13","issn":"1867-8548","url":"https://amt.copernicus.org/articles/13/1671/2020/","doi":"10.5194/amt-13-1671-2020","abstract":"Abstract. The carbon exchange between ecosystems and the atmosphere has a large influence on the Earth system and specifically on the climate. This exchange is therefore being studied intensively, often using the eddy covariance (EC) technique. EC measurements provide reliable results under turbulent atmospheric conditions, but under calm and stable conditions – as they often occur at night – these measurements are known to misrepresent exchange fluxes. Nocturnal boundary layer (NBL) budgets can provide independent flux estimates under stable conditions, but their application so far has been limited by rather high cost and practical difficulties. Unmanned aircraft systems (UASs) equipped with trace gas analysers have the potential to make this method more accessible. We present the methodology and results of a proof-of-concept study carried out during the ScaleX 2016 campaign. Successive vertical profiles of carbon dioxide dry-air mole fraction in the NBL were taken with a compact analyser carried by a UAS. We estimate an average carbon dioxide flux of 12 µmolm-2s-1, which is plausible for nocturnal respiration in this region in summer. Transport modelling suggests that the NBL budgets represent an area on the order of 100 km2.","language":"en","number":"4","urldate":"2022-11-02","journal":"Atmospheric Measurement Techniques","author":[{"propositions":[],"lastnames":["Kunz"],"firstnames":["Martin"],"suffixes":[]},{"propositions":[],"lastnames":["Lavric"],"firstnames":["Jost","V."],"suffixes":[]},{"propositions":[],"lastnames":["Gasche"],"firstnames":["Rainer"],"suffixes":[]},{"propositions":[],"lastnames":["Gerbig"],"firstnames":["Christoph"],"suffixes":[]},{"propositions":[],"lastnames":["Grant"],"firstnames":["Richard","H."],"suffixes":[]},{"propositions":[],"lastnames":["Koch"],"firstnames":["Frank-Thomas"],"suffixes":[]},{"propositions":[],"lastnames":["Schumacher"],"firstnames":["Marcus"],"suffixes":[]},{"propositions":[],"lastnames":["Wolf"],"firstnames":["Benjamin"],"suffixes":[]},{"propositions":[],"lastnames":["Zeeman"],"firstnames":["Matthias"],"suffixes":[]}],"month":"April","year":"2020","pages":"1671–1692","bibtex":"@article{kunz_surface_2020,\n\ttitle = {Surface flux estimates derived from {UAS}-based mole fraction measurements by means of a nocturnal boundary layer budget approach},\n\tvolume = {13},\n\tissn = {1867-8548},\n\turl = {https://amt.copernicus.org/articles/13/1671/2020/},\n\tdoi = {10.5194/amt-13-1671-2020},\n\tabstract = {Abstract. The carbon exchange between ecosystems and the atmosphere has a large\ninfluence on the Earth system and specifically on the climate. This\nexchange is therefore being studied intensively, often using the eddy\ncovariance (EC) technique. EC measurements provide reliable results\nunder turbulent atmospheric conditions, but under calm and stable\nconditions – as they often occur at night – these measurements\nare known to misrepresent exchange fluxes. Nocturnal boundary layer\n(NBL) budgets can provide independent flux estimates under stable\nconditions, but their application so far has been limited by rather\nhigh cost and practical difficulties. Unmanned aircraft systems (UASs)\nequipped with trace gas analysers have the potential to make this\nmethod more accessible. We present the methodology and results of\na proof-of-concept study carried out during the ScaleX 2016 campaign.\nSuccessive vertical profiles of carbon dioxide dry-air mole fraction\nin the NBL were taken with a compact analyser carried by a UAS. We\nestimate an average carbon dioxide flux of 12 µmolm-2s-1,\nwhich is plausible for nocturnal respiration in this region in summer.\nTransport modelling suggests that the NBL budgets represent an area\non the order of 100 km2.},\n\tlanguage = {en},\n\tnumber = {4},\n\turldate = {2022-11-02},\n\tjournal = {Atmospheric Measurement Techniques},\n\tauthor = {Kunz, Martin and Lavric, Jost V. and Gasche, Rainer and Gerbig, Christoph and Grant, Richard H. and Koch, Frank-Thomas and Schumacher, Marcus and Wolf, Benjamin and Zeeman, Matthias},\n\tmonth = apr,\n\tyear = {2020},\n\tpages = {1671--1692},\n}\n\n\n\n","author_short":["Kunz, M.","Lavric, J. V.","Gasche, R.","Gerbig, C.","Grant, R. H.","Koch, F.","Schumacher, M.","Wolf, B.","Zeeman, M."],"key":"kunz_surface_2020","id":"kunz_surface_2020","bibbaseid":"kunz-lavric-gasche-gerbig-grant-koch-schumacher-wolf-etal-surfacefluxestimatesderivedfromuasbasedmolefractionmeasurementsbymeansofanocturnalboundarylayerbudgetapproach-2020","role":"author","urls":{"Paper":"https://amt.copernicus.org/articles/13/1671/2020/"},"metadata":{"authorlinks":{}}},"bibtype":"article","biburl":"https://bibbase.org/zotero/tereno","dataSources":["cq3J5xX6zmBvc2TQC"],"keywords":[],"search_terms":["surface","flux","estimates","derived","uas","based","mole","fraction","measurements","means","nocturnal","boundary","layer","budget","approach","kunz","lavric","gasche","gerbig","grant","koch","schumacher","wolf","zeeman"],"title":"Surface flux estimates derived from UAS-based mole fraction measurements by means of a nocturnal boundary layer budget approach","year":2020}