ATLAS/ICESat-2 L2A Global Geolocated Photon Data, Version 3

This data set (ATL03) contains height above the WGS 84 ellipsoid (ITRF2014 reference frame), latitude, longitude, and time for all photons downlinked by the Advanced Topographic Laser Altimeter System (ATLAS) instrument on board the Ice, Cloud and land Elevation Satellite-2 (ICESat-2) observatory. The ATL03 product was designed to be a single source for all photon data and ancillary information needed by higher-level ATLAS/ICESat-2 products. As such, it also includes spacecraft and instrument parameters and ancillary data not explicitly required for ATL03.

本数据集（ATL03）收录了冰、云与陆地高程卫星-2（Ice, Cloud and land Elevation Satellite-2，ICESat-2）所搭载的先进地形激光测高系统（Advanced Topographic Laser Altimeter System，ATLAS）下行传输的全部光子的WGS 84椭球体（ITRF2014参考框架）高程、纬度、经度及时间信息。ATL03产品被设计为高级别ATLAS/ICESat-2产品所需的全部光子数据与辅助信息的单一数据源，因此其还包含了航天器与仪器参数，以及并非ATL03本身明确要求的辅助数据。