Importance of the Webb, Pearman, and Leuning (WPL) correction for the measurement of small CO<sub>2</sub> fluxes
<p>The WPL (Webb, Pearman, and Leuning) correction is fully accepted to correct trace gas fluxes like CO<span class="inline-formula"><sub>2</sub></span> for density fluctuations due to water vapour and temperature fluctuations for open-path gas analysers. It i...
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2021-11-01
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| Series: | Atmospheric Measurement Techniques |
| Online Access: | https://amt.copernicus.org/articles/14/7291/2021/amt-14-7291-2021.pdf |
| _version_ | 1818837027308699648 |
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| author | K. Jentzsch J. Boike J. Boike T. Foken |
| author_facet | K. Jentzsch J. Boike J. Boike T. Foken |
| author_sort | K. Jentzsch |
| collection | DOAJ |
| description | <p>The WPL (Webb,
Pearman, and Leuning) correction is fully accepted to
correct trace gas fluxes like CO<span class="inline-formula"><sub>2</sub></span> 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.</p> |
| first_indexed | 2024-12-19T03:15:58Z |
| format | Article |
| id | doaj.art-86b0c568e7244de090aab8a4e3bb3c86 |
| institution | Directory Open Access Journal |
| issn | 1867-1381 1867-8548 |
| language | English |
| last_indexed | 2024-12-19T03:15:58Z |
| publishDate | 2021-11-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Measurement Techniques |
| spelling | doaj.art-86b0c568e7244de090aab8a4e3bb3c862022-12-21T20:37:53ZengCopernicus PublicationsAtmospheric Measurement Techniques1867-13811867-85482021-11-01147291729610.5194/amt-14-7291-2021Importance of the Webb, Pearman, and Leuning (WPL) correction for the measurement of small CO<sub>2</sub> fluxesK. Jentzsch0J. Boike1J. Boike2T. Foken3Alfred Wegener Institute, Telegrafenberg A6, 14473 Potsdam, GermanyAlfred Wegener Institute, Telegrafenberg A6, 14473 Potsdam, GermanyGeography Department, Humboldt-Universität zu Berlin, 12489 Berlin, GermanyUniversity of Bayreuth, Bayreuth Center of Ecology and Environmental Research (BayCEER), 95440 Bayreuth, Germany<p>The WPL (Webb, Pearman, and Leuning) correction is fully accepted to correct trace gas fluxes like CO<span class="inline-formula"><sub>2</sub></span> 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.</p>https://amt.copernicus.org/articles/14/7291/2021/amt-14-7291-2021.pdf |
| spellingShingle | K. Jentzsch J. Boike J. Boike T. Foken Importance of the Webb, Pearman, and Leuning (WPL) correction for the measurement of small CO<sub>2</sub> fluxes Atmospheric Measurement Techniques |
| title | Importance of the Webb, Pearman, and Leuning (WPL) correction for the measurement of small CO<sub>2</sub> fluxes |
| title_full | Importance of the Webb, Pearman, and Leuning (WPL) correction for the measurement of small CO<sub>2</sub> fluxes |
| title_fullStr | Importance of the Webb, Pearman, and Leuning (WPL) correction for the measurement of small CO<sub>2</sub> fluxes |
| title_full_unstemmed | Importance of the Webb, Pearman, and Leuning (WPL) correction for the measurement of small CO<sub>2</sub> fluxes |
| title_short | Importance of the Webb, Pearman, and Leuning (WPL) correction for the measurement of small CO<sub>2</sub> fluxes |
| title_sort | importance of the webb pearman and leuning wpl correction for the measurement of small co sub 2 sub fluxes |
| url | https://amt.copernicus.org/articles/14/7291/2021/amt-14-7291-2021.pdf |
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