ESA Greenland Ice Sheet Climate Change Initiative (Greenland_Ice_Sheet_cci): Optical ice velocity of the Helheim Glacier between 2017-05-01 and 2017-08-29, generated using Sentinel-2 data, v1.1

This dataset contains optical ice velocity time series and seasonal product of the Helheim Glacier in Greenland, derived from intensity-tracking of Sentinel-2 data acquired between 2017-05-01 and 2017-08-29. It has been produced as part of the ESA Greenland Ice sheet CCI project.

The data are provided on a polar stereographic grid (EPSG 3413:Latitude of true scale 70N, Reference Longitude 45E) with 50m grid spacing. The horizontal velocity is provided in true meters per day, towards EASTING (x) and NORTHING (y) direction of the grid.

The data have been produced by S[&]T Norway.

本数据集包含格陵兰岛赫尔黑姆冰川的光学冰流速时间序列及其季节性产品，该数据由2017年5月1日至2017年8月29日期间获取的Sentinel-2数据通过强度跟踪技术生成。该数据集是欧洲空间局（ESA）格陵兰冰盖CCi项目的组成部分。数据以极地横轴墨卡托投影网格（EPSG 3413：真比例纬度为70N，参考经度为45E）提供，网格间距为50米。水平速度以真实米/日为单位，沿网格的EASTING（x）和NORTHING（y）方向提供。数据由挪威S[&]T公司制作。