IceBridge UAF L2 HF Bed Elevation and Ice Thickness, Version 1

This data set contains measurements of glacier surface elevation, bed elevation, and ice thickness for Alaska and Northwestern Canada. Glacier surface elevation is derived from IceBridge UAF Lidar Scanner L1B Geolocated Surface Elevation Triplets (ILAKS1B). Radar bed returns are sourced from IceBridge UAF L1B HF Geolocated Radar Echo Strength Profiles (IRUAFHF1B) to provide glacier bed elevation and ice thickness. Radar-derived ice thickness and glacier bed elevation are provided as per-trace measurements from the corresponding L1B radar echo strength profile (referencing the WGS 84 ellipsoid).

本数据集包含阿拉斯加与加拿大西北部的冰川表面高程、床面高程及冰厚测量数据。其中，冰川表面高程数据源自冰桥行动阿拉斯加大学费尔班克斯分校（IceBridge UAF）激光雷达扫描仪L1B级地理定位表面高程三元组数据集（ILAKS1B）。冰川床面高程与冰厚的雷达反演数据，则来源于冰桥行动阿拉斯加大学费尔班克斯分校L1B级高频地理定位雷达回波强度剖面数据集（IRUAFHF1B）。雷达反演得到的冰厚与冰川床面高程以逐迹测量的形式，从对应L1B级雷达回波强度剖面中提取，其坐标参考基准为WGS 84椭球体。