ASTER Global Emissivity Dataset 100-meter Binary V003 - AG100B

The Advanced Spaceborne Thermal Emission and Reflection radiometer Global Emissivity Database (ASTER GED) was developed by the National Aeronautics and Space Administration's (NASA) Jet Propulsion Laboratory (JPL), California Institute of Technology. The North America portion of this collection was formerly called the North American ASTER Land Surface Emissivity Database (NAALSED) - a seasonal dataset consisting of mean summer (J-A-S) and winter (J-F-M) products.

ASTER GED products are output on 1degree x 1 degree grids at 100-meter or 1-kilometer spatial resolution (nominal) and include the mean emissivity and standard deviation for all 5 ASTER thermal infrared bands, mean land surface temperature (LST) and standard deviation, a re-sampled ASTER GDEM (not included in the North America Winter products), land-water mask, mean Normalized Difference Vegetation Index (NDVI) and standard deviation, latitude, longitude, and observation count.

Additional ASTER GED product information is available at https://lpdaac.usgs.gov/products/community_products_table. Product tiles are available in HDF and binary format and may be downloaded via HTTP by visiting the following data clients: NASA Reverb (http://reverb.echo.nasa.gov), LP DAAC Data Pool (http://e4ftl01.cr.usgs.gov/ASTT/), or EarthExplorer (http://earthexplorer.usgs.gov).

先进星载热发射与反射辐射计全球发射率数据库（ASTER GED）由美国国家航空航天局（National Aeronautics and Space Administration，NASA）下属加州理工学院的喷气推进实验室（Jet Propulsion Laboratory，JPL）研发。该数据集的北美部分此前被命名为北美ASTER地表发射率数据库（North American ASTER Land Surface Emissivity Database，NAALSED），是一套包含夏季（J-A-S，对应7-9月）与冬季（J-F-M，对应1-3月）平均产品的季节性数据集。
ASTER GED产品以1°×1°网格输出，空间分辨率标称值为100米或1千米，包含ASTER热红外5个波段的平均发射率及其标准差、平均地表温度（Land Surface Temperature，LST）及其标准差、重采样后的ASTER全球数字高程模型（北美冬季产品不包含此项）、陆水掩膜、归一化差分植被指数（Normalized Difference Vegetation Index，NDVI）平均值及其标准差，以及纬度、经度与观测计数。
更多ASTER GED产品相关信息可访问https://lpdaac.usgs.gov/products/community_products_table查询。产品分幅数据采用HDF与二进制格式存储，可通过以下数据客户端以HTTP协议下载：NASA Reverb（http://reverb.echo.nasa.gov）、LP DAAC数据池（http://e4ftl01.cr.usgs.gov/ASTT/）以及EarthExplorer（http://earthexplorer.usgs.gov）。