Importance of the Webb, Pearman, and Leuning (WPL) correction for the measurement of small CO2 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...
Published in: | Atmospheric Measurement Techniques |
---|---|
Main Authors: | , , |
Format: | Text |
Language: | English |
Published: |
2021
|
Subjects: | |
Online Access: | https://doi.org/10.5194/amt-14-7291-2021 https://amt.copernicus.org/articles/14/7291/2021/ |
id |
ftcopernicus:oai:publications.copernicus.org:amt96944 |
---|---|
record_format |
openpolar |
spelling |
ftcopernicus:oai:publications.copernicus.org:amt96944 2023-05-15T15:03:24+02:00 Importance of the Webb, Pearman, and Leuning (WPL) correction for the measurement of small CO2 fluxes Jentzsch, Katharina Boike, Julia Foken, Thomas 2021-11-19 application/pdf https://doi.org/10.5194/amt-14-7291-2021 https://amt.copernicus.org/articles/14/7291/2021/ eng eng doi:10.5194/amt-14-7291-2021 https://amt.copernicus.org/articles/14/7291/2021/ eISSN: 1867-8548 Text 2021 ftcopernicus https://doi.org/10.5194/amt-14-7291-2021 2021-11-22T17:22:29Z 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. Text Arctic Copernicus Publications: E-Journals Arctic Webb ENVELOPE(146.867,146.867,-67.867,-67.867) Atmospheric Measurement Techniques 14 11 7291 7296 |
institution |
Open Polar |
collection |
Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
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 |
Text |
author |
Jentzsch, Katharina Boike, Julia Foken, Thomas |
spellingShingle |
Jentzsch, Katharina Boike, Julia Foken, Thomas Importance of the Webb, Pearman, and Leuning (WPL) correction for the measurement of small CO2 fluxes |
author_facet |
Jentzsch, Katharina Boike, Julia Foken, Thomas |
author_sort |
Jentzsch, Katharina |
title |
Importance of the Webb, Pearman, and Leuning (WPL) correction for the measurement of small CO2 fluxes |
title_short |
Importance of the Webb, Pearman, and Leuning (WPL) correction for the measurement of small CO2 fluxes |
title_full |
Importance of the Webb, Pearman, and Leuning (WPL) correction for the measurement of small CO2 fluxes |
title_fullStr |
Importance of the Webb, Pearman, and Leuning (WPL) correction for the measurement of small CO2 fluxes |
title_full_unstemmed |
Importance of the Webb, Pearman, and Leuning (WPL) correction for the measurement of small CO2 fluxes |
title_sort |
importance of the webb, pearman, and leuning (wpl) correction for the measurement of small co2 fluxes |
publishDate |
2021 |
url |
https://doi.org/10.5194/amt-14-7291-2021 https://amt.copernicus.org/articles/14/7291/2021/ |
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 |
eISSN: 1867-8548 |
op_relation |
doi:10.5194/amt-14-7291-2021 https://amt.copernicus.org/articles/14/7291/2021/ |
op_doi |
https://doi.org/10.5194/amt-14-7291-2021 |
container_title |
Atmospheric Measurement Techniques |
container_volume |
14 |
container_issue |
11 |
container_start_page |
7291 |
op_container_end_page |
7296 |
_version_ |
1766335257719603200 |