High Mountain Asia 2 m DEM, Surface Velocity, and Lagrangian Surface Mass Balance for Select Debris Covered Glaciers, Version 1

This High Mountain Asia data set contains 2 m resolution digital elevation models (DEMs), surface velocities, surface mass balance (SMB) rates, and SMB uncertainties for six debris-covered glaciers in Nepal.

SMB rate is estimated by applying a Lagrangian specification to DEMs derived from very-high-resolution optical stereo imagery acquired by Maxar Technologies satellites WorldView-1, WorldView-2, WorldView-3, and GeoEye-1.

This data set was granted permission for public release on 1 March 2024 under the National Reconnaissance Office (NRO) Electro-Optical Commercial Layer (EOCL) program.

本高亚洲（High Mountain Asia）数据集包含尼泊尔境内6条冰碛覆盖冰川（debris-covered glaciers）的2米分辨率数字高程模型（digital elevation models, DEMs）、表面流速、表面物质平衡（surface mass balance, SMB）速率以及表面物质平衡不确定性数据。
表面物质平衡速率通过将拉格朗日规范（Lagrangian specification）应用于由Maxar Technologies公司卫星WorldView-1、WorldView-2、WorldView-3及GeoEye-1获取的超高分辨率光学立体影像生成的DEMs来估算。
本数据集于2024年3月1日获得美国国家侦察局（National Reconnaissance Office, NRO）光电商业层（Electro-Optical Commercial Layer, EOCL）计划的公开发布许可。