Surface renewal analysis : a new method to obtain scalar fluxes
1995
Paw U, Kyaw Tha | Qiu, Jie | Su, Hong-Bing | Watanabe, Tomonori | Brunet, Yves | UC Davis Biometeorology Group ; University of California [Davis] (UC Davis) ; University of California (UC)-University of California (UC) | University of California [Davis] (UC Davis) ; University of California (UC) | Unité de bioclimatologie ; Institut National de la Recherche Agronomique (INRA)
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Show more [+] Less [-]English. A new method for estimating scalar fluxes, called surface renewal analysis, was developed and successfully tested with air temperature data from a maize crop, an orchard, and a forest canopy. The method employs the scalar trace and is based on the concept of turbulent coherent structures causing most of the scalar fluxes. It was generally more accurate than other scalar based methods such as the Tillman variance method, and can be applied to data gathered under stable stability conditions. Filtering the temperature trace, based on the wind speed at the canopy height, resulted in more accurate surface renewal estimates than when raw 10 Hz data were used.
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