Field Evapotranspi ration Measurement Based on Eddy Covariance Technology
Quansheng Zhao
Abstract
Quansheng Zhao
Abstract
The principle of measuring turbulent flux by eddy covariance system and its application to field evapotranspiration measurement were introduced in this paper. The main factors that caused the errors of field evapotranspiration value were discussed, the accuracy of eddy covariance water and heat flux records was analyzed, the method for eliminating abnormal data and making data correction were brought forward in analysis of eddy covariance measurement.
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The principle of measuring turbulent flux by eddy covariance system and its application to field evapotranspiration measurement were introduced in this paper. The main factors that caused the errors of field evapotranspiration value were discussed, the accuracy of eddy covariance water and heat flux records was analyzed, the method for eliminating abnormal data and making data correction were brought forward in analysis of eddy covariance measurement.
Key concepts: Eddy covariance, Evapotranspiration, Covariance, Field (mathematics), Flux (metallurgy), Environmental science, Meteorology, Mathematics