Multi-year Ice Velocity Mosaics for the Greenland Ice Sheet from Sentinel-1 Edition 1

The PROMICE Multi-year ice velocity product is an ice velocity mosaic consisting of several years of data for the Greenland Ice Sheet based on the ESA Sentinel-1 SAR offset tracking. Currently, there are two mosaic in the product: one spanning 5 years of data from September 2016 to September 2021, and one spanning 7 years of data from January 2016 to December 2022. The 5 year average product is a weighted average of all the Promice 24 day mosaics between September 2016 and September 2021 (Anne Solgaard; Anders Kusk, 2021, "Greenland Ice Velocity from Sentinel-1 Edition 2", https://doi.org/10.22008/promice/data/sentinel1icevelocity/greenlandicesheet, GEUS Dataverse, V27) The 7 year average product is a weighted average of all the Promice 24 day mosaics between January 2016 and December 2022 (Solgaard, Anne Munck; Kusk, Anders, 2022, "Greenland Ice Velocity from Sentinel-1 Edition 3", https://doi.org/10.22008/FK2/ZEGVXU, GEUS Dataverse, V17) Spatial resolution: 500 m The mosaic is supplied as a NetCDF file. There is a high resolution png posted along with the NetCDF file. Projection: Polar Stereographic projection (EPSG: 3413) To see and post comments/recommendations please check out: github.com/GEUS-PROMICE/Sentinel-1_Greenland_Ice_Velocity When using the dataset please use: Solgaard, Anne; Kusk, Anders, 2022, "Multi-year Ice Velocity Mosaics for the Greenland Ice Sheet from Sentinel-1 Edition 1", https://doi.org/10.22008/FK2/LYDWEA, GEUS Dataverse V (version number) Literature citation: Solgaard, A., Kusk, A., Merryman Boncori, J. P., Dall, J., Mankoff, K. D., Ahlstrøm, A. P., Andersen, S. B., Citterio, M., Karlsson, N. B., Kjeldsen, K. K., Korsgaard, N. J., Larsen, S. H., and Fausto, R. S.: Greenland ice velocity maps from the PROMICE project, Earth Syst. Sci. Data, 13, 3491–3512, https://doi.org/10.5194/essd-13-3491-2021, 2021. Please add the following to your acknowledgements: "Ice velocity maps were produced as part of the Programme for Monitoring of the Greenland Ice Sheet (PROMICE) using Copernicus Sentinel-1 SAR images distributed by ESA, and were provided by the Geological Survey of Denmark and Greenland (GEUS) at http://www.promice.dk."

PROMICE多年冰速产品（PROMICE Multi-year ice velocity product）是基于欧洲空间局（European Space Agency, ESA）Sentinel-1合成孔径雷达（Synthetic Aperture Radar, SAR）偏移跟踪技术，针对格陵兰冰盖整合多年观测数据构建的冰速镶嵌图。目前该产品包含两款镶嵌数据集：一款覆盖2016年9月至2021年9月共计5年的观测数据，另一款覆盖2016年1月至2022年12月共计7年的观测数据。

其中5年期平均产品为2016年9月至2021年9月间所有PROMICE 24天级镶嵌图的加权平均值（Anne Solgaard; Anders Kusk, 2021, "格陵兰冰盖Sentinel-1冰速数据 第2版", https://doi.org/10.22008/promice/data/sentinel1icevelocity/greenlandicesheet, 丹麦地质调查局数据档案馆（GEUS Dataverse）, V27）；7年期平均产品为2016年1月至2022年12月间所有PROMICE 24天级镶嵌图的加权平均值（Solgaard, Anne Munck; Kusk, Anders, 2022, "格陵兰冰盖Sentinel-1冰速数据 第3版", https://doi.org/10.22008/FK2/ZEGVXU, GEUS Dataverse, V17）。

本数据集的空间分辨率为500米，以NetCDF文件格式提供，同步附带配套的高分辨率PNG图像，投影采用极方位立体投影（EPSG: 3413）。

如需查看或提交评论与建议，请访问：github.com/GEUS-PROMICE/Sentinel-1_Greenland_Ice_Velocity。

使用该数据集时，请引用以下文献：Solgaard, Anne; Kusk, Anders, 2022, "格陵兰冰盖Sentinel-1多年冰速镶嵌图 第1版", https://doi.org/10.22008/FK2/LYDWEA, GEUS Dataverse V（版本号）。

正式文献引用格式为：Solgaard, A., Kusk, A., Merryman Boncori, J. P., Dall, J., Mankoff, K. D., Ahlstrøm, A. P., Andersen, S. B., Citterio, M., Karlsson, N. B., Kjeldsen, K. K., Korsgaard, N. J., Larsen, S. H., Fausto, R. S.: 《PROMICE项目格陵兰冰速图》, *地球系统科学数据（Earth Syst. Sci. Data）*, 13, 3491–3512, https://doi.org/10.5194/essd-13-3491-2021, 2021。

请在致谢部分添加以下内容："冰速图系格陵兰冰盖监测计划（Programme for Monitoring of the Greenland Ice Sheet, PROMICE）利用欧洲空间局（ESA）分发的哥白尼Sentinel-1合成孔径雷达（SAR）影像制作，并由丹麦地质调查局（GEUS）通过http://www.promice.dk提供。"