AMSR-E/Aqua Daily EASE-Grid Brightness Temperatures, Version 1

The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) instrument on the NASA EOS Aqua satellite provides global passive microwave measurements of the Earth. NSIDC produces AMSR-E gridded brightness temperature data by interpolating AMSR-E data (6.9 GHz, 10.7 GHz, 18.7 GHz, 23.8 GHz, 36.5 GHz, and 89.0 GHz) to the output grids from swath space using an Inverse Distance Squared (ID2) method. AMSR-E/Aqua L2A Global Swath Spatially-Resampled Brightness Temperatures (AE_L2A) input source data are used.

These data are provided in three EASE-Grid projections (north and south Lambert azimuthal and global cylindrical) at 25 km resolution, and in one global cylindrical, equidistant latitude-longitude projection at 0.25 degree (quarter-degree) resolution.

搭载于美国国家航空航天局（National Aeronautics and Space Administration, NASA）地球观测系统（Earth Observing System, EOS）Aqua卫星的先进微波扫描辐射计-地球观测系统（Advanced Microwave Scanning Radiometer - Earth Observing System, AMSR-E）载荷，可获取全球范围的地球被动微波观测数据。美国国家冰雪数据中心（National Snow and Ice Data Center, NSIDC）采用反距离平方（Inverse Distance Squared, ID2）插值方法，将AMSR-E原始条带数据（涵盖6.9 GHz、10.7 GHz、18.7 GHz、23.8 GHz、36.5 GHz与89.0 GHz共6个频段）插值至规则输出网格，从而生成AMSR-E网格化亮温数据集。所用输入源数据为AMSR-E/Aqua L2A全球条带空间重采样亮温（AE_L2A）数据集。
该数据集提供两种分辨率的分发格式：其一为采用三种EASE格网（EASE-Grid）投影（南北极兰伯特方位等面积投影与全球圆柱投影）的25公里分辨率数据；其二为采用全球圆柱等距经纬投影的0.25度（四分之一度）分辨率数据。