Importance of the Webb, Pearman, and Leuning (WPL) correction for the measurement of small CO 2 fluxes
The WPL (Webb, Pearman, and Leuning) correction is fully accepted to correct trace gas fluxes like CO 2 for density fluctuations due to water vapour and temperature fluctuations for open-path gas analysers. It is known that this additive correction can be on the order of magnitude of the actual flux...
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2021
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ftdoajarticles:oai:doaj.org/article:86b0c568e7244de090aab8a4e3bb3c86 2023-05-15T15:04:08+02:00 Importance of the Webb, Pearman, and Leuning (WPL) correction for the measurement of small CO 2 fluxes K. Jentzsch J. Boike T. Foken 2021-11-01T00:00:00Z https://doi.org/10.5194/amt-14-7291-2021 https://doaj.org/article/86b0c568e7244de090aab8a4e3bb3c86 EN eng Copernicus Publications https://amt.copernicus.org/articles/14/7291/2021/amt-14-7291-2021.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 doi:10.5194/amt-14-7291-2021 1867-1381 1867-8548 https://doaj.org/article/86b0c568e7244de090aab8a4e3bb3c86 Atmospheric Measurement Techniques, Vol 14, Pp 7291-7296 (2021) Environmental engineering TA170-171 Earthwork. Foundations TA715-787 article 2021 ftdoajarticles https://doi.org/10.5194/amt-14-7291-2021 2022-12-31T09:16:33Z The WPL (Webb, Pearman, and Leuning) correction is fully accepted to correct trace gas fluxes like CO 2 for density fluctuations due to water vapour and temperature fluctuations for open-path gas analysers. It is known that this additive correction can be on the order of magnitude of the actual flux. However, this is hardly ever included in the analysis of data quality. An example from the Arctic shows the problems, because the size of the correction is a multiple of the actual flux. As a general result, we examined and tabulated the magnitude of the WPL correction for carbon dioxide flux as a function of sensible and latent heat flux. Furthermore, we propose a parameter to better estimate possible deficits in data quality and recommend integrating the quality flag derived with this parameter into the general study of small carbon dioxide fluxes. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Webb ENVELOPE(146.867,146.867,-67.867,-67.867) Atmospheric Measurement Techniques 14 11 7291 7296 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 |
spellingShingle |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 K. Jentzsch J. Boike T. Foken Importance of the Webb, Pearman, and Leuning (WPL) correction for the measurement of small CO 2 fluxes |
topic_facet |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 |
description |
The WPL (Webb, Pearman, and Leuning) correction is fully accepted to correct trace gas fluxes like CO 2 for density fluctuations due to water vapour and temperature fluctuations for open-path gas analysers. It is known that this additive correction can be on the order of magnitude of the actual flux. However, this is hardly ever included in the analysis of data quality. An example from the Arctic shows the problems, because the size of the correction is a multiple of the actual flux. As a general result, we examined and tabulated the magnitude of the WPL correction for carbon dioxide flux as a function of sensible and latent heat flux. Furthermore, we propose a parameter to better estimate possible deficits in data quality and recommend integrating the quality flag derived with this parameter into the general study of small carbon dioxide fluxes. |
format |
Article in Journal/Newspaper |
author |
K. Jentzsch J. Boike T. Foken |
author_facet |
K. Jentzsch J. Boike T. Foken |
author_sort |
K. Jentzsch |
title |
Importance of the Webb, Pearman, and Leuning (WPL) correction for the measurement of small CO 2 fluxes |
title_short |
Importance of the Webb, Pearman, and Leuning (WPL) correction for the measurement of small CO 2 fluxes |
title_full |
Importance of the Webb, Pearman, and Leuning (WPL) correction for the measurement of small CO 2 fluxes |
title_fullStr |
Importance of the Webb, Pearman, and Leuning (WPL) correction for the measurement of small CO 2 fluxes |
title_full_unstemmed |
Importance of the Webb, Pearman, and Leuning (WPL) correction for the measurement of small CO 2 fluxes |
title_sort |
importance of the webb, pearman, and leuning (wpl) correction for the measurement of small co 2 fluxes |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
https://doi.org/10.5194/amt-14-7291-2021 https://doaj.org/article/86b0c568e7244de090aab8a4e3bb3c86 |
long_lat |
ENVELOPE(146.867,146.867,-67.867,-67.867) |
geographic |
Arctic Webb |
geographic_facet |
Arctic Webb |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Atmospheric Measurement Techniques, Vol 14, Pp 7291-7296 (2021) |
op_relation |
https://amt.copernicus.org/articles/14/7291/2021/amt-14-7291-2021.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 doi:10.5194/amt-14-7291-2021 1867-1381 1867-8548 https://doaj.org/article/86b0c568e7244de090aab8a4e3bb3c86 |
op_doi |
https://doi.org/10.5194/amt-14-7291-2021 |
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Atmospheric Measurement Techniques |
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14 |
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11 |
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7296 |
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