Comparison of Horizontal and Vertical Advective CO sub(2) Fluxes at Three Forest Sites

Horizontal and vertical advective CO sub(2) fluxes at three forest sites are compared. First results from a comparison of ADVEX field experiments performed at CarbonEurope-Integrated Project (CE-IP) sites in Renon/Ritten (RE), Wetzstein site (WS) and Norunda site (NO) are reported. It is demonstrate...

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Bibliographic Details
Published in:Agricultural and forest meteorology 2008-01, Vol.148 (1), p.12-12
Main Authors: Feigenwinter, Christian, Bernhofer, Christian, Eichelmann, Uwe, Heinesch, Bernard, Hertel, Martin, Janous, Dalibor, Kolle, Olaf
Format: Article
Language:English
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Summary:Horizontal and vertical advective CO sub(2) fluxes at three forest sites are compared. First results from a comparison of ADVEX field experiments performed at CarbonEurope-Integrated Project (CE-IP) sites in Renon/Ritten (RE), Wetzstein site (WS) and Norunda site (NO) are reported. It is demonstrated that for WS site a small vertical [CO sub(2)] gradient results in small vertical advection (F sub(VA)) even if there is a significant non-zero mean vertical wind component. At the NO site, the large vertical [CO sub(2)] gradient causes occasional large values for F sub(VA), either positive or negative, depending on the sign of the notably very small vertical wind component. It is concluded that advection affects the different sites in different ways.
ISSN:0168-1923
DOI:10.1016/j.agrformet.2007.08.013