New Antarctic Gravity Anomaly Grid for Enhanced Geodetic and Geophysical Studies in Antarctica
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
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
Original language | English |
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Pages (from-to) | 600– 610 |
Journal | Geophysical Research Letters |
Volume | 43 |
Issue number | 2 |
Publication status | Published - 8 Jan 2016 |
Peer-reviewed | Yes |
External IDs
Scopus | 84961285711 |
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ORCID | /0000-0002-0892-8941/work/142248878 |
Keywords
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Subject groups, research areas, subject areas according to Destatis
ASJC Scopus subject areas
Keywords
- Geodäsie