ISG

   International Service for the Geoid

   

Search in ISG Website



Links:










      

      

Services - Geoid Repository


Regional Models

Lake Vostok - Antarctica


  Authors: J. Schwabe, et al.     Created: 2014    Resp: J. Schwabe  
      Status: PUBLIC   

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

LakeVostok