New ultrahigh-resolution picture of Earth's gravity field
dc.contributor.author | Hirt, Christian | |
dc.contributor.author | Claessens, Sten | |
dc.contributor.author | Fecher, T. | |
dc.contributor.author | Kuhn, Michael | |
dc.contributor.author | Pail, R. | |
dc.contributor.author | Rexer, Moritz | |
dc.date.accessioned | 2017-01-30T15:29:16Z | |
dc.date.available | 2017-01-30T15:29:16Z | |
dc.date.created | 2014-03-03T20:00:46Z | |
dc.date.issued | 2013 | |
dc.identifier.citation | Hirt, Christian and Claessens, Sten and Fecher, Thomas and Kuhn, Michael and Pail, Roland and Rexer, Moritz. 2013. New ultrahigh-resolution picture of Earth's gravity field. Geophysical Research Letters. 40 (16): pp. 4279-4283. | |
dc.identifier.uri | http://hdl.handle.net/20.500.11937/46786 | |
dc.identifier.doi | 10.1002/grl.50838 | |
dc.description.abstract |
We provide an unprecedented ultrahigh resolution picture of Earth’s gravity over all continents and numerous islands within ±60° latitude. This is achieved through augmentation of new satellite and terrestrial gravity with topography data and use of massive parallel computation techniques, delivering local detail at ~200 m spatial resolution. As such, our work is the first-of-its-kind to model gravity at unprecedented fine scales yet with near-global coverage. The new picture of Earth’s gravity encompasses a suite of gridded estimates of gravity accelerations, radial and horizontal field components, and quasi-geoid heights at over 3 billion points covering 80% of Earth’s land masses. We identify new candidate locations of extreme gravity signals, suggesting that the Committee on Data for Science and Technology standard for peak-to-peak variations in free-fall gravity is too low by about 40%. The new models are beneficial for a wide range of scientific and engineering applications and freely available to the public. | |
dc.publisher | American Geophysical Union | |
dc.subject | vertical deflections | |
dc.subject | Earth's gravity field | |
dc.subject | quasi-geoid | |
dc.subject | ultrahigh resolution | |
dc.subject | gravity | |
dc.title | New ultrahigh-resolution picture of Earth's gravity field | |
dc.type | Journal Article | |
dcterms.source.volume | 40 | |
dcterms.source.number | 16 | |
dcterms.source.startPage | 4279 | |
dcterms.source.endPage | 4283 | |
dcterms.source.issn | 0094-8276 | |
dcterms.source.title | Geophysical Research Letters | |
curtin.note |
An edited version of this paper was published by AGU. Copyright (2013) American Geophysical Union. | |
curtin.department | ||
curtin.accessStatus | Open access |