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《Plateau Meteorology》 2003-05
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Evaluation of NCEP/DOE Surface Flux Data over Qinghai-Xizang Plateau

WEI Li,LI Dong\|liang(Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China)\ \  
The monthly mean surface flux of NCEP/DOE reanalysis data were evaluated by comparing with the surface air temperature at meteorological stations and the surface radiation data observed during the period of August 1982 to July 1983. The results show that the annual variations of the reanalyzed temperature and radiation fluxes are very well agreed with the observations. The reanalyzed temperature are, however, systematically lower than the observation over Plateau. And it causes the reanalyzed surface downward and upward long\|wave radiation flux much lower than the observations. The reanalyzed surface albedo is higher, and it causes the net solar radiation flux and total net radiation flux lower than the observation on the areas where snow is covered in winter. The deviation of temperature is mainly resulted from the difference of the reanalysis model orography and the height of station in snow\|free area and seasons. The other part of deviation of temperature is resulted from the reanalysis lower net radiation flux by using higher albedos on snow\|cover plateau in winter
【Fund】: 中国科学院知识创新工程重大项目"青藏铁路工程与多年冻土相互作用及其环境效应"(KZCX1 SW 04)资助
【CateGory Index】: P468
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