AMSR-E/Aqua Daily L3 25 km Brightness Temperature & Sea Ice Concentration Polar Grids, Version 2

The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) instrument on the NASA Earth Observing System (EOS) Aqua satellite provides global passive microwave measurements of land, ocean, and atmospheric variables for the investigation of water and energy cycles.

This Level-3 gridded product (AE_SI25) includes brightness temperatures at 6.9 through 89.0 GHz and sea ice concentrations. Data are mapped to a polar stereographic grid at 25 km spatial resolution. All variables include daily ascending averages, daily descending averages, and daily averages. Data are stored in HDF-EOS format and are available from 19 June 2002 to 3 October 2011 via FTP.

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卫星搭载的高级微波扫描辐射计-地球观测系统（Advanced Microwave Scanning Radiometer - Earth Observing System, AMSR-E）仪器，可获取全球陆地、海洋与大气变量的被动微波测量数据，用于水循环与能量循环的研究。
本三级网格化产品（AE_SI25）包含6.9 GHz至89.0 GHz频段的亮温数据与海冰浓度数据。数据被映射至空间分辨率为25 km的极射赤平投影网格。所有变量均包含每日升轨平均值、每日降轨平均值以及日平均数据。数据以HDF-EOS格式存储，可通过FTP获取，时间覆盖范围为2002年6月19日至2011年10月3日。