摘要
应用2005-2006年西大滩、五道梁和唐古拉站的太阳短波（0.3-5μm）辐射观测资料处理得到的16 d平均地表反照率,与MODIS地表反照率产品MCD43B3进行对比分析,结果表明：MODIS黑空反照率、白空反照率与地表反照率地面观测结果的总体变化趋势基本一致,积雪是导致两种数据结果绝对偏差较大的原因。受地面观测和MODIS反演观测空间尺度的影响,考虑MODIS反演结果或地面观测结果低于0.4时,MODIS黑空反照率和白空反照率的全反演结果、当量反演结果与地面观测结果的均方根差会相应减小。总体而言,全反演结果的精度高于当量反演结果。
Applications in 2005-2006, wudaoliang and tangula station west beach sun shortwave radiation（0.3 ~ 5 microns） observation data processing of 16 d average surface albedo, surface albedo and MODIS products MCD43B3 were analyzed, the results show that the MODIS black empty albedo, white empty albedo and the overall trend of the surface albedo ground observation, the snow is the cause of two kinds of absolute deviation data result greatly.Under the ground and MODIS inversion observations, and the influence of spatial scale considered MODIS inversion results or ground observations below 0.4, MODIS black white empty empty albedo and albedo inversion results of inversion results, equivalent with the ground observation of root mean square difference will be reduced accordingly.In general, the precision of inversion results above all equivalent inversion results.
出处
《科技通报》
北大核心
2016年第11期47-50,55,共5页
Bulletin of Science and Technology
基金
国家自然科学基金项目资助(40875015)
