ATLAS/ICESat-2 L2A Normalized Relative Backscatter Profiles, Version 1

ATL04 contains along-track normalized relative backscatter profiles of the atmosphere. The product includes full 532 nm (14 km) uncalibrated attenuated backscatter profiles at 25 times per second for vertical bins of approximately 30 meters. Calibration coefficient values derived from data within the polar regions are also included. The data were acquired by the Advanced Topographic Laser Altimeter System (ATLAS) instrument on board the Ice, Cloud and land Elevation Satellite-2 (ICESat-2) observatory.ATL04 数据集包含大气的沿轨归一化相对后向散射廓线。该产品包含每秒25次采样的完整532纳米（14公里）未校准衰减后向散射廓线，其垂直分层单元约为30米。此外还收录了基于极地区域数据推导得到的校准系数值。本数据集由搭载于冰、云与陆地高程卫星-2（ICESat-2）观测平台的先进地形激光测高系统（ATLAS）获取。