针对GEWEX-SRB(Global Energy and Water Exchanges Project-Surface Radiation Budget)、ISCCP-FD(International Satellite Cloud Climatology Project-Flux Data)和CERES-SYN(Clouds and the Earth′s Radiant Energy System-Synoptic Radiative Fluxes and Clouds)中上行长波辐射数据在极地地区的精度问题展开研究。实验利用极地地区的BSRN(Baseline Surface Rad