Kappelsberger, Maria; Strößenreuther, Undine; Scheinert, Mirko; Horwath, Martin; Groh, Andreas (2020): Gridded rates of ice-mass change in north-east Greenland from a combination of satellite gravimetry and satellite altimetry. PANGAEA, https://doi.org/10.1594/PANGAEA.922884
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The gridded data set comprises rates of ice-mass change in north-east Greenland for the time period July 2010 to June 2017. For this, we combined satellite altimetry data from CryoSat-2 with satellite gravimetry data from the Gravity Recovery and Climate Experiment (GRACE) over the Greenland Ice Sheet including peripheral glaciers and ice caps.
The combination improves ice-mass change estimates since the two satellite techniques complement each other. Satellite altimetry is used to resolve mass changes at glacier scale (grid resolution of 1.5×1.5 km²). Satellite gravimetry is directly sensitive to mass redistributions allowing the combined mass balance to be adjusted to the GRACE estimate. However, the mass-balance estimation by satellite gravimetry depends directly on the glacial-isostatic adjustment (GIA) correction. To investigate the GIA mass effect, three different GIA models were consistently used in all processing steps. Therefore, three different versions of the mass-change rates are provided depending on the GIA model applied.
Kappelsberger, Maria; Strößenreuther, Undine; Scheinert, Mirko; Horwath, Martin; Groh, Andreas; Knöfel, Christoph; Lunz, S; Khan, Shfaqat Abbas (2021): Modeled and observed bedrock displacements in north-east Greenland using refined estimates of present-day ice-mass changes and densified GNSS measurements. Journal of Geophysical Research-Earth Surface, 126, e2020JF005860, https://doi.org/10.1029/2020JF005860