Greenland Ice Velocity from Sentinel-1 Edition 4

Version 20.0
Greenland Ice Velocity from Sentinel-1 Edition 4
Solgaard, Anne Munck; Kusk, Anders, 2024, "Greenland Ice Velocity from Sentinel-1 Edition 4", https://doi.org/10.22008/FK2/LFZLZN, GEUS Dataverse, V20
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Description

Greenland Ice Velocity from Sentinel-1

  • The PROMICE Ice Velocity product is a timeseries of Greenland Ice Sheet velocity mosaics based on ESA Sentinel-1 SAR offset tracking.
  • The product spans the period January 2016 to present.
  • Spatial resolution: 200 m
  • Temporal resolution: A new mosaic spanning 2 Sentinel-1A cycles i.e. 24 days is posted every 12 days.
  • Each mosaic: All possible 6 and 12 day pairs using Sentinel-1A and 1B is included in the mosaic.
  • Each mosaic is supplied as a NetCDF file.
  • Projection: Polar Stereographic projection (EPSG: 3413)
  • The data product is described in detail in Solgaard et al., 2021 (see reference below)
  • We aim to make each new mosaic available within 10 days of the last included acquisition.

    To see and post comments/recommendations please check out: github.com/GEUS-PROMICE/Sentinel-1_Greenland_Ice_Velocity

  • Main updates for Edition 4:
  • The product resolution is now 200 m
  • Improved delineation of the velocity field at outlet glacier margins.
  • More details on the updated processor to be described in a planned update of the PROMICE ice velocity ESSD publication.
  • NOTE version 18: The products cycle314_315 through cycle318_319 have been updated. Some tracks were missing in the previous versions.

  • Main updates for Edition 3:
  • The dataset has been extended back in time and now covers: January 2016 - Present

  • Main updates performed for Edition 2:
    • All 6 day and 12 day pairs possible are included in each 2 cycle mosaic.
    • We no longer mask out results in ice free areas in order to avoid removing ice flow as the ice sheet advances
    • We apply the culling scheme described in 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.
    • NOTE: From version 11: Prior to version 11, the mosaics covering dates in 2021 were not culled correctly. In version 11 the affected mosaics have been re-culled and uploaded.
    • NOTE: From version 31:Prior to version 31, there were gaps in the timeseries in 2017. These have now been filled.

    NOTE: No 6 day pairs in mosaics since Dec 23 2021: Due to a faliure on Sentinel-1 B, no data has been received from the satellite since Dec 23 2021. For this reason the mosaics produced since then includes no 6 day pairs. This limits the quality of the posted ice velocity mosaics.

  • How to cite:
    • When using the dataset please use: Anne Solgaard; Anders Kusk, 2021, "Greenland Ice Velocity from Sentinel-1 Edition 3", https://doi.org/10.22008/promice/data/sentinel1icevelocity/greenlandicesheet, GEUS Dataverse
    • 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."

(2024-01-15)
Subject Earth and Environmental Sciences; Physics
Keyword Ice velocity, Greenland Ice Sheet, Sentinel-1
Notes

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ice velocity
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