Preprints
https://doi.org/10.5194/essd-2025-415
https://doi.org/10.5194/essd-2025-415
05 Aug 2025
 | 05 Aug 2025
Status: this preprint is currently under review for the journal ESSD.

PROMICE-2022 Ice Mask: A high-resolution outline of the Greenland Ice Sheet from August 2022

Gregor Luetzenburg, Niels J. Korsgaard, Anna K. Deichmann, Tobias Socher, Karin Gleie, Thomas Scharffenberger, Rasmus P. Meyer, Dominik Fahrner, Eva B. Nielsen, Penelope How, Anders A. Bjørk, Kristian K. Kjeldsen, Andreas P. Ahlstrøm, and Robert S. Fausto

Abstract. The Greenland Ice Sheet (GrIS) is losing mass at an accelerating rate in response to climate change. Its geometry responds to these changes over annual to decadal timescales, therefore making accurate and up-to-date mapping of its extent essential for monitoring ice loss, assessing mass balance, and improving climate and glaciological models. Ice margin outlines serve as critical boundary conditions for different types of modelling exercises, hydrological studies, and assessments of ice sheet dynamics. Here, we present the PROMICE-2022 Ice Mask, a high-resolution outline of the contiguous ice masses of the GrIS and the nunataks in its interior as of late August 2022. The dataset was derived from a true-colour Sentinel-2 mosaic at 10 m spatial resolution, generated using the Sentinel Hub Cloud Processing API to select the most recent valid pixels from August 2022. The mapping process was performed manually and supplemented with high-resolution mosaics from Sentinel-2 and SPOT 6/7 provided by the Danish Agency for Climate Data (KDS), along with recent topographic vector data. We mapped the geodesic perimeter length of the GrIS to 53,060 km and its glacierized area to 1,725,648 km² with 19,130 nunataks in its interior. The PROMICE-2022 ice mask captures the GrIS margin with an absolute horizontal accuracy better than 20 m. Its quality and consistency make it well suited for applications in ice sheet modelling, hydrology, glacial geomorphology, and long-term monitoring of ice margin change. The complete dataset is freely available for download at https://doi.org/10.22008/FK2/O8CLRE (Luetzenburg et al., 2025).

Publisher's note: Copernicus Publications remains neutral with regard to jurisdictional claims made in the text, published maps, institutional affiliations, or any other geographical representation in this preprint. The responsibility to include appropriate place names lies with the authors.
Share
Gregor Luetzenburg, Niels J. Korsgaard, Anna K. Deichmann, Tobias Socher, Karin Gleie, Thomas Scharffenberger, Rasmus P. Meyer, Dominik Fahrner, Eva B. Nielsen, Penelope How, Anders A. Bjørk, Kristian K. Kjeldsen, Andreas P. Ahlstrøm, and Robert S. Fausto

Status: open (until 11 Sep 2025)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
Gregor Luetzenburg, Niels J. Korsgaard, Anna K. Deichmann, Tobias Socher, Karin Gleie, Thomas Scharffenberger, Rasmus P. Meyer, Dominik Fahrner, Eva B. Nielsen, Penelope How, Anders A. Bjørk, Kristian K. Kjeldsen, Andreas P. Ahlstrøm, and Robert S. Fausto

Data sets

PROMICE-2022 Ice Mask Gregor Luetzenburg et al. https://doi.org/10.22008/FK2/O8CLRE

Gregor Luetzenburg, Niels J. Korsgaard, Anna K. Deichmann, Tobias Socher, Karin Gleie, Thomas Scharffenberger, Rasmus P. Meyer, Dominik Fahrner, Eva B. Nielsen, Penelope How, Anders A. Bjørk, Kristian K. Kjeldsen, Andreas P. Ahlstrøm, and Robert S. Fausto

Viewed

Total article views: 11 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
11 0 0 11 0 0
  • HTML: 11
  • PDF: 0
  • XML: 0
  • Total: 11
  • BibTeX: 0
  • EndNote: 0
Views and downloads (calculated since 05 Aug 2025)
Cumulative views and downloads (calculated since 05 Aug 2025)

Viewed (geographical distribution)

Total article views: 11 (including HTML, PDF, and XML) Thereof 11 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 07 Aug 2025
Download
Short summary
We mapped the edge of the Greenland Ice Sheet using recent satellite images to create a detailed outline of its extent in 2022. This helps track how the ice sheet is changing as the climate warms. By carefully combining satellite data and checking results by hand, we created one of the most accurate maps of the ice sheet to date. This map supports research on ice loss and improves predictions of future changes in Greenland’s ice and its effect on the planet.
Share
Altmetrics