Eddy Covariance Flux Tower: A Promising Technique for Greenhouse Gases Measurement
نویسندگان
چکیده
منابع مشابه
Assessment of Spatial Representativeness of Eddy Covariance Flux Data from Flux Tower to Regional Grid
Combining flux tower measurements with remote sensing or land surface models is generally regarded as an efficient method to scale up flux data from site to region. However, due to the heterogeneous nature of the vegetated land surface, the changing flux source areas and the mismatching between ground source areas and remote sensing grids, direct use of in-situ flux measurements can lead to maj...
متن کاملUncertainty analysis of eddy covariance CO2 flux measurements for different EC tower distances using an extended two-tower approach
The use of eddy covariance (EC) CO2 flux measurements in data assimilation and other applications requires an estimate of the random uncertainty. In previous studies, the (classical) two-tower approach has yielded robust uncertainty estimates, but care must be taken to meet the often competing requirements of statistical independence (nonoverlapping footprints) and ecosystem homogeneity when ch...
متن کاملChemically-resolved aerosol eddy covariance flux measurements
Introduction Conclusions References
متن کاملEddy covariance flux measurements of pollutant gases in urban Mexico City
Eddy covariance (EC) flux measurements of the atmosphere/surface exchange of gases over an urban area are a direct way to improve and evaluate emissions inventories, and, in turn, to better understand urban atmospheric chemistry and the role that cities play in regional and global chemical cycles. As part of the MCMA-2003 study, we demonstrated the feasibility of using eddy covariance technique...
متن کاملUpscaling Tundra CO2 Exchange from Chamber to Eddy Covariance Tower
Paul C. Stoy* Extrapolating biosphere-atmosphere CO2 flux observations to larger scales in space, part of Mathew Williams† the so-called ‘‘upscaling’’ problem, is a central challenge for surface-atmosphere exchange Jonathan G. Evans‡ research. Upscaling CO2 flux in tundra is complicated by the pronounced spatial variability Ana Prieto-Blanco§ of vegetation cover. We demonstrate that a simple mo...
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ژورنال
عنوان ژورنال: Advances in Plants & Agriculture Research
سال: 2017
ISSN: 2373-6402
DOI: 10.15406/apar.2017.07.00263