Unknown
Scheinert, Mirko
;
Ferraccioli, Fausto
;
Schwabe, Joachim
;
[et al.]
Bell, Robin E
;
Studinger, Michael
;
Damaske, Detlef
;
Jokat, Wilfried
;
Aleshkova, Nadezhda D
;
Jordan, Tom A
;
Leitchenkov, German L
;
Blankenship, Donald D
;
Damiani, Theresa
;
Young, Duncan A
;
Cochran, James R
;
Richter, Thomas
PANGAEA
In:
Supplement to: Scheinert, Mirko; Ferraccioli, Fausto; Schwabe, Joachim; Bell, Robin E; Studinger, Michael; Damaske, Detlef; Jokat, Wilfried; Aleshkova, Nadezhda D; Jordan, Tom A; Leitchenkov, German L; Blankenship, Donald D; Damiani, Theresa; Young, Duncan A; Cochran, James R; Richter, Thomas (2016): New Antarctic gravity anomaly grid for enhanced geodetic and geophysical studies in Antarctica. Geophysical Research Letters, 43(2), 600-610, https://doi.org/10.1002/2015GL067439
Publication Date:
2023-08-24
Description:
Gravity surveying is challenging in Antarctica because of its hostile environment and inaccessibility. Nevertheless, many ground-based, airborne, and shipborne gravity campaigns have been completed by the geophysical and geodetic communities since the 1980s. We present the first modern Antarctic-wide gravity data compilation derived from 13 million data points covering an area of 10 million km**2, which corresponds to 73% coverage of the continent. The remove-compute-restore technique was applied for gridding, which facilitated leveling of the different gravity data sets with respect to an Earth gravity model derived from satellite data alone. The resulting free-air and Bouguer gravity anomaly grids of 10 km resolution are publicly available. These grids will enable new high-resolution combined Earth gravity models to be derived and represent a major step forward toward solving the geodetic polar data gap problem. They provide a new tool to investigate continental-scale lithospheric structure and geological evolution of Antarctica.
Keywords:
Accuracy; Bouguer anomaly; Free-air gravity anomaly; Height above ellipsoid; LATITUDE; LONGITUDE; Orthometric height; pan-Antarctica; x; y
Type:
Dataset
Format:
text/tab-separated-values, 2224256 data points
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