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利用北京昌平小汤山2002年、2004年涡动相关仪和大孔径闪烁仪的观测数据,借助解析足迹模型计算的源区,分析均匀、非均匀下垫面上涡动相关仪和大孔径闪烁仪观测显热通量之间的差异和关系。结果表明:地表的均匀与非均匀性质,直接影响涡动相关仪和大孔径闪烁仪观测的显热通量的差异大小。在分析均匀、非均匀地表上2种仪器源区重叠面积及重叠区域内足迹值大小与观测通量值之间的关系后,构建一个非均匀地表上2台涡动相关仪与1台闪烁仪观测通量之间的尺度关系式。
Based on the observed data of eddy co-correlator and large-aperture scintillator in Xiaotangshan, Changping, Beijing in 2002 and 2004, the source regions calculated by the footprint model were analyzed. The eddy correlation and large aperture scintigraphy Observed the difference between the heat flux and the relationship. The results show that the uniform and inhomogeneous nature of the surface directly affects the magnitude of the sensible heat flux observed by eddy covariance and large aperture scintigraphy. After analyzing the relationship between the overlap area of two kinds of instrument source areas and the value of the footprint in the overlap area and the observed flux value on a uniform and non-uniform surface, two scrolling correlators and one scintillator The relationship between the scale of the observed flux.