Annual glacier surface flow velocity product from Sentinel-2 data for the European Alps

Glacier ice flow velocity is an important variable to document the past and current status of the glacier worldwide. The aim of the ESA AlpGlacier project is to create innovative products for glaciers and their environments from remote sensing data for the European Alps mountain range. The data set proposed here includes maps of annual glacier surface flow velocities for the period 2015-2021, created from Sentinel-2 optical data with the work-flow presented in Mouginot et al., 2023. It can be used for the monitoring of glacier dynamics or for hazards detection associated to glaciers destabilization, as well as an input of models calibration and validation. These products are distributed in both netCDF and GeoTiff formats, georeferenced under the UTM-32N projection.

冰川冰流速（Glacier ice flow velocity）是记录全球冰川过去与当前状态的重要变量。欧洲空间局（ESA）AlpGlacier项目旨在基于遥感数据，为欧洲阿尔卑斯山脉的冰川及其周边环境研发创新型产品。本次提供的数据集包含2015-2021年的年度冰川表面流速图，该数据集基于哨兵二号（Sentinel-2）光学影像，采用Mouginot等人2023年提出的工作流程生成。本数据集可用于冰川动力学监测、冰川失稳相关灾害识别，同时可作为模型校准与验证的输入数据。该类产品以网络通用数据格式（netCDF）和地理标记影像文件格式（GeoTIFF）两种格式分发，采用通用横轴墨卡托投影32N带（UTM-32N）进行地理配准。