Gravity anomalies in miligals (mGal).

=== Original Data Source ===
Geoid model and gravity anomalies for Greenland

The Bouguer anomaly grid of Greenland have been derived from a
rigorous least-squares collocation downward continuation process of
terrain-corrected data, from the same data used to derive the geoid.
The Bouguer anomalies are derived for a density of 2.67 g/cm3 over
for rock density, and 0.92 g/cm3 for ice thickness. No Bouguer
correction have been applied for marine areas, so offshore and data
are free-air anomalies. The gravity reference system is GRS80, based
on fundamental absolute gravity network.

The gravity Faye (free-air) anomaly grid has been restored from the
Bouguer anomaly grid by the normal gravity gradient of 0.1119
mGal/m, without terrain corrections, based on the underlying DEM of
land and glaciers/ice sheet.

Citation:
Forsberg R., Jensen T. (2015) New Geoid of Greenland: A Case
Study of Terrain and Ice Effects, GOCE and Use of Local Sea
Level Data. In: Jin S., Barzaghi R. (eds) IGFS 2014. Int.
Association of Geodesy Symposia, vol 144.  Springer,
https://doi.org/10.1007/1345_2015_50.

Citation URL:
https://doi.org/10.1007/1345_2015_50