Greenland Ice Sheet CCI Products

Preview image :

Description :

IV time series of Jakobshavn glacier 1992-2010 generated using ERS-1, ERS-2 and Envisat data.

Comments :

Two time series of ice velocity maps for Jakobshavn glacier in Greenland derived from intensity-tracking of ERS-1/2 and Envisat data acquired between 27/01-1992 and 13/06/2010.

'Greenland_Jakobshavn_TimeSeries_2002_2010' contains the older version of the time series kept for completion and to ensure the best temporal coverage. This time series is based on Envisat data acquired between 10/11-2002 and 23/09-2010 and contains 47 maps.

'greenland_jakobshavn_timeseries_1992_2010' contains the new version of the time series based on ERS-1/2 and Envisat data acquired between 27/1-1992 and 26/02-2010 and contains 120 maps.

This data set is part of the ESA Greenland Ice sheet CCI project. It provides components of the ice velocity and the magnitude of the velocity.

The data is provided on a polar stereographic grid (EPSG3413: Latitude of true scale 70N, Reference Longitude 45E) with 500m grid spacing. The image pairs have a repeat cycle between 1 and 35 days.

The horizontal velocity is provided in true meters per day, towards EASTING(x) and NORTHING(y) direction of the grid, and the vertical displacement (z), derived from a digital elevation model, is also provided.

Data is provided as a single NetCDF file.

Quicklook image: Data example from Jakobshavn glacier. Background bedrock from: Morlighem, M., E. Rignot, J. Mouginot, H. Seroussi and E. Larour. 2015.IceBridge BedMachine Greenland, Version 2, Boulder, Colorado USA: NASA DAAC at the National Snow and Ice Data Center and Morlighem, M., E. Rignot, J. Mouginot, H. Seroussi and E. Larour. 2014. Deeply incised submarine glacial valleys beneath the Greenland Ice Sheet, Nature Geoscience, 7:418-422. doi:10.1038/ngeo2167

The product was generated by GEUS and ENVEO. For further details, please consult the document:
T. Nagler, et al., Product User Guide (PUG) for the Greenland_Ice_Sheet_cci project of ESA's Climate Change Initiative, version 2.0.