New Antarctic Gravity Anomaly Grid for Enhanced Geodetic and Geophysical Studies in Antarctica

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

  • M. Scheinert - , Professur für Geodätische Erdsystemforschung (Autor:in)
  • F. Ferraccioli - , British Antarctic Survey (Autor:in)
  • R. Bell - , Columbia University (Autor:in)
  • M. Studinger - , NASA Goddard Space Flight Center (Autor:in)
  • D. Damaske - , Bundesanstalt für Geowissenschaften und Rohstoffe, Hannover, Germany (Autor:in)
  • W. Jokat - , Alfred Wegener Institute - Helmholtz Centre for Polar and Marine Research (Autor:in)
  • N. Aleshkova - , VNIIOkeangeologie, St Petersburg, Russia (Autor:in)
  • T. Jordan - , British Antarctic Survey (Autor:in)
  • G. Leitchenkov - , VNIIOkeangeologie, St Petersburg, Russia, Peter the Great St. Petersburg Polytechnic University (Autor:in)
  • D.D. Blankenship - , University of Texas at Austin (Autor:in)
  • T.M. Damiani - , United States Geological Survey (Autor:in)
  • D. Young - , University of Texas at Austin (Autor:in)
  • J.R. Cochran - , Columbia University (Autor:in)
  • T.D. Richter - , University of Texas at Austin (Autor:in)
  • J. Schwabe - , Professur für Geodätische Erdsystemforschung, Bundesamt für Kartographie und Geodäsie (Autor:in)

Abstract

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 km2, 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.

Details

OriginalspracheEnglisch
Seiten (von - bis)600– 610
FachzeitschriftGeophysical Research Letters
Jahrgang43
Ausgabenummer2
PublikationsstatusVeröffentlicht - 8 Jan. 2016
Peer-Review-StatusJa

Externe IDs

Scopus 84961285711
ORCID /0000-0002-0892-8941/work/142248878

Schlagworte

DFG-Fachsystematik nach Fachkollegium

Fächergruppen, Lehr- und Forschungsbereiche, Fachgebiete nach Destatis

ASJC Scopus Sachgebiete

Schlagwörter

  • Geodäsie