Description:
We present a regional geoid model for the area of Lake Vostok, Antarctica, from a combination of local airborne gravity,
ice-surface and ice-thickness data and a lake bathymetry model. The topography data are used for residual terrain modelling
(RTM) in a remove-compute-restore approach together with the GOCE satellite model GOCO03S. The disturbing potential at the Earth's
surface, i.e. the quasigeoid, is predicted by least-squares collocation (LSC) and subsequently converted to geoid heights. Compared
to GOCO03S our regional solution provides an additional short-wavelength signal of up to 1.48 m, or 0.56 m standard deviation,
respectively. The dataset can be also downloaded from the
PANGAEA website.
References:
J. Schwabe, H. Ewert, M. Scheinert, R. Dietrich (2014). Regional geoid modeling in the area
of subglacial Lake Vostok, Antarctica. Journal of Geodynamics, 75, pp. 9-21.
DOI: 10.1016/j.jog.2013.12.002
Web of Science ID:
DRCI:DATA2019017015400521
|
