ATLAS/ICESat-2 L3A Sea Ice Height Quick Look, Version 5

ATL07QL is the quick look version of ATL07. Once final ATL07 files are available the corresponding ATL07QL files will be removed. ATL07 contains along-track heights for sea ice and open water leads (at varying length scales) relative to the WGS84 ellipsoid (ITRF2014 reference frame) after adjustment for geoidal and tidal variations, and inverted barometer effects. Height statistics and apparent reflectance are also provided. 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.ATL07QL是ATL07的快速预览版本。当最终版ATL07文件发布时，对应的ATL07QL文件将被移除。 ATL07数据集包含海冰与开阔水域冰间水道在不同长度尺度下的沿轨高程数据，该数据以采用ITRF2014参考框架（ITRF2014 reference frame）的WGS84椭球体（WGS84 ellipsoid）为基准，且已完成大地水准面变化、潮汐变化及倒气压效应的校正。数据集同时提供高度统计量与表观反射率。该数据由冰、云和陆地高程卫星-2（Ice, Cloud and land Elevation Satellite-2, ICESat-2）搭载的先进地形激光测高系统（Advanced Topographic Laser Altimeter System, ATLAS）采集获取。