Greenland Ice Velocity time series from Sentinel-2 data for 9 outlet key glaciers for summer seasons 2022 and 2023

Ice velocity seasonal products for 9 outlet key glaciers (Petermann_Gletsjer, Jacobshavn_isbrae, Helheim, Kangerlussuaq, Upernavik, 79_fjord, Storstrommen, Hagen, ) in Greenland, derived from intensity-tracking of Sentinel-2 data acquired during the summer seasons of 2022 and 2023. This data set is part of the ESA Greenland Ice Sheet CCI+ Phase 2 project. It provides components of the ice velocity within a NetCDF file. The file includes all measurements and annotations. The data are provided on a polar stereographic grid (EPSG:3413: Latitude of true scale 70N, Reference Longitude 45E) with 100m grid spacing. The horizontal velocity is provided in true meters per day, towards the EASTING (x) and NORTHING (y) direction of the grid.The product was generated by Science and Technology AS.针对格陵兰岛9处核心出口冰川（彼得曼冰川（Petermann_Gletsjer）、雅各布港冰川（Jacobshavn_isbrae）、赫尔海姆冰川（Helheim）、康克鲁斯瓦格冰川（Kangerlussuaq）、乌佩纳维克冰川（Upernavik）、79号峡湾冰川（79_fjord）、斯托斯特伦冰川（Storstrommen）、哈根冰川（Hagen））的季节性冰流速产品，其数据源自2022年与2023年夏季获取的哨兵二号（Sentinel-2）卫星影像强度追踪处理结果。 本数据集隶属于欧洲空间局（ESA）格陵兰冰盖气候变化倡议（CCI+）第二阶段项目。数据集以NetCDF（网络通用数据格式）文件存储冰流速相关组分，文件包含全部测量数据与注释信息。 数据采用极立体投影网格（EPSG:3413：标准纬线纬度70°N，参考经度45°E），网格分辨率为100米。 水平流速以每日真实米数为单位，分别提供沿网格东向（EASTING，x轴）与北向（NORTHING，y轴）的分量。本产品由Science and Technology AS公司研制生成。