EGU23-16473
https://doi.org/10.5194/egusphere-egu23-16473
EGU General Assembly 2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Monitoring the flow of the Greenland Ice Sheet: The PROMICE ice velocity product and recent updates

Anne Solgaard1, Anders Kusk2, Signe Hillerup Larsen1, Kenneth Mankoff3,4, and Robert Fausto1
Anne Solgaard et al.
  • 1GEUS, Copenhagen, Denmark
  • 2Department of Space Research and Technology, DTU, Lyngby, Denmark
  • 3Business Integra, New York, NY, USA
  • 4NASA Goddard Institute for Space Studies, New York, NY, USA

We present the Programme for Monitoring of the Greenland Ice Sheet (PROMICE) ice velocity product, which is a time series of ice velocity mosaics derived using offset tracking on Sentinel-1 SAR data.  The time series starting in January 2016 is continuously updated with a new mosaic every 12 days and is posted at 500 m grid resolution. Within PROMICE, the ice velocity product is used directly as input to estimate the solid ice discharge from the Greenland Ice Sheet as well as to study ice dynamic processes on seasonal and multi-annual time scales. Recently, we have made changes to the processing chain due to spurious cases of slow down detected in a few glaciers in Southeast Greenland. In this contribution, we discuss how this was resolved as well as other recent improvements to the product.

How to cite: Solgaard, A., Kusk, A., Hillerup Larsen, S., Mankoff, K., and Fausto, R.: Monitoring the flow of the Greenland Ice Sheet: The PROMICE ice velocity product and recent updates, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-16473, https://doi.org/10.5194/egusphere-egu23-16473, 2023.