Radar Depth Sounder echograms and ice thickness, Greenland, 2008-2016

To better understand processes affecting the ice sheets and to supply boundary condition information into ice sheet models and ice thickness for other ice sheet analysis, the Center for Remote Sensing of Ice Sheets (CReSIS) has designed, developed, and deployed radar depth sounders in Greenland. For the 2008 and 2009 seasons, several multichannel radar depth sounders were deployed around outlet glaciers in Greenland, with the specific purpose of improving understanding in this dynamic and fast changing part of the ice sheet. For the 2016 season, a near high frequency (33-37 MHz) radar depth sounder was deployed at Russell Glacier in Greenland to demonstrate the system. An uninhabited aerial vehicle (UAV), dubbed the G1XB, was modified to carry this HF sounder. The data sets contain geolocated radar echo strength profile images and ice thickness, ice surface, and ice bottom elevations taken with the CReSIS Radar Depth Sounders (RDS).

为更好地解析影响冰盖的各项过程，并为冰盖模型提供边界条件数据、为其他冰盖分析工作提供冰厚度信息，冰盖遥感中心 (Center for Remote Sensing of Ice Sheets, CReSIS) 已在格陵兰岛设计、研发并部署了雷达测深仪。在2008和2009年科考季期间，团队在格陵兰岛的出口冰川周边部署了多台多通道雷达测深仪，其核心目标是加深对冰盖这片动态且快速变化区域的科学认知。2016年科考季，为验证该系统，团队在格陵兰岛的拉塞尔冰川 (Russell Glacier) 部署了一台近高频 (33-37 MHz) 雷达测深仪；一架被命名为G1XB的无人驾驶航空器 (uninhabited aerial vehicle, UAV) 经过改装，以搭载该高频测深仪。本数据集包含由CReSIS雷达测深仪 (Radar Depth Sounders, RDS) 采集的带地理坐标的雷达回波强度剖面图像，以及冰厚度、冰面高程与冰底高程数据。