ATLAS/ICESat-2 L3A Land and Vegetation Height, Version 5

This data set (ATL08) contains along-track heights above the WGS84 ellipsoid (ITRF2014 reference frame) for the ground and canopy surfaces. The canopy and ground surfaces are processed in fixed 100 m data segments, which typically contain more than 100 signal photons. 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.本数据集（ATL08）包含地面与冠层表面的沿轨高度，该高度以WGS84椭球体（WGS84 ellipsoid）为基准，参考框架采用ITRF2014参考框架（ITRF2014 reference frame）。冠层与地面表面以固定100米数据段为处理单元，每个数据段通常包含100余个信号光子。该数据由搭载于冰、云与陆地高程卫星-2（Ice, Cloud and land Elevation Satellite-2，ICESat-2）观测平台的先进地形激光测高系统（Advanced Topographic Laser Altimeter System，ATLAS）采集获取。