Tools for quality assessment of surface-based flux measurements

被引:1230
作者
Foken, T
Wichura, B
机构
[1] German Weather Service, Meteorological Observatory
[2] Institute of Applied Fresh Water Ecology, D-14469 Potsdam
关键词
D O I
10.1016/0168-1923(95)02248-1
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
The Navier-Stokes equations, after application of the Reynolds' averaging procedures, are the basis of direct surface-based measurements of turbulent fluxes via the eddy correlation method. Under restrictive conditions in the atmospheric surface layer, these equations are valid in a simplified form. These conditions are the stationarity of the data, the homogeneity of the underlying surface, a fully developed turbulence, and negligible density fluctuations. Fdr most experiments these conditions are not fully satisfied, especially for continuous measurements over a greater period of time. Possible test algorithms are described to reflect the fulfilment of the criteria given above. As a consequence, we present a scheme for the characterization of the quality of direct turbulence measurements.
引用
收藏
页码:83 / 105
页数:23
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