Importance of the Webb, Pearman, and Leuning (WPL) correction for the measurement of small CO 2 fluxes

• Published in: Atmospheric Measurement Techniques
• Main Authors: K. Jentzsch, J. Boike, T. Foken
• Format: Article in Journal/Newspaper
• Language: English
• Published: Copernicus Publications 2021
• Subjects: Environmental engineering; TA170-171; Earthwork. Foundations; TA715-787; Arctic; Webb
• Online Access: https://doi.org/10.5194/amt-14-7291-2021; https://doaj.org/article/86b0c568e7244de090aab8a4e3bb3c86

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...