Contrast Research on Flux Correction Methods for EddyCovariance Measurement
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Abstract:
Based on the data of turbulence flux observed by the eddcovariance method from 10 February to 20 September 2008 at the Shouxian National Climate Observatory, the WPL (WebbPearmanLeuning) and Liu methods are used to correct the latent heat flux and CO2 flux. The differences between the two methods and the influence of the correction methods on flux measurement are contrasted. The main results indicate that both methods can avoid effectively the false messages resulted from calculation and increase the precision of the measurements. The latent heat flux increased about 3% to 5%, and the CO2 flux decreased about 1% to 2% after correction. The correctional range of the WPL method is bigger than that of the Liu method.
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Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.