NASA Operation IceBridge

NASA Operation IceBridge是美国国家航空航天局(NASA)历史上最大的极地地区航空调查任务，收集了2009年至2020年间超过1,000次航空测量数据。该数据库包含从Level 0到Level 4的数据产品，描述了冰面高程年度变化、冰床下地形、冰川和冰架接地线、冰雪厚度、海冰分布等参数。数据主要用于填补ICESat卫星任务(2010年结束)和ICESat-2卫星任务(2018年发射)之间的极地观测空白。NASA Operation IceBridge is the largest polar airborne survey mission in the history of the U.S. National Aeronautics and Space Administration (NASA), having collected over 1,000 airborne measurement datasets between 2009 and 2020. This database includes data products ranging from Level 0 to Level 4, which document parameters including annual ice surface elevation changes, subglacial topography, grounding lines of glaciers and ice shelves, snow and ice thickness, and sea ice distribution. The data is primarily used to bridge the polar observation gap between the ICESat satellite mission (ended in 2010) and the ICESat-2 satellite mission (launched in 2018).