Detecting Hot Spots of Methane Flux Using Footprint-Weighted Flux Maps.

ABSTRACT: In this study, we propose a new technique for mapping the spatial heterogeneity in gas exchange around flux towers using flux footprint modeling and focusing on detecting hot spots of methane (CH₄) flux. In the first part of the study, we used a CH₄ release experiment to evaluate three common flux footprint models: the Hsieh model (Hsieh et al., 2000), the Kljun model (Kljun et al., 2015), and the K & M model (Kormann and Meixner, 2001), finding that the K & M model was the most accurate under these conditions. In the second part of the study, we introduce the Footprint-Weighted Flux Map, a new technique to map spatial heterogeneity in fluxes. Using artificial CH₄ release experiments, natural tracer approaches and flux chambers we mapped the spatial flux he

SUBMITTER: Rey-Sanchez C 

PROVIDER: S-EPMC9542288 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature