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GRACE Measurements of Mass Variability in the Earth System

Tapley, Byron D., Bettadpur, Srinivas, Ries, John C., Thompson, Paul F., Watkins, Michael M.·2004·Science

Abstract

Monthly gravity field estimates made by the twin Gravity Recovery and Climate Experiment (GRACE) satellites have a geoid height accuracy of 2 to 3 millimeters at a spatial resolution as small as 400 kilometers. The annual cycle in the geoid variations, up to 10 millimeters in some regions, peaked predominantly in the spring and fall seasons. Geoid variations observed over South America that can be largely attributed to surface water and groundwater changes show a clear separation between the large Amazon watershed and the smaller watersheds to the north. Such observations will help hydrologists to connect processes at traditional length scales (tens of kilometers or less) to those at regional and global scales.

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Metadata

Authors
Tapley, B. D., Bettadpur, S., Ries, J. C., Thompson, P. F., & Watkins, M. M.
Venue
Science
Published
2004-07-23
Volume
305
Issue
5683
Pages
503-505
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2092645526
Cited by
2,555
References
0
FWCI
50.94
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: GRACE Measurements of Mass Variability in the Earth System. https://app.cochat.ai/papers/10.1126/science.1099192
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Tapley, B. D., Bettadpur, S., Ries, J. C., Thompson, P. F., & Watkins, M. M. (2004). GRACE Measurements of Mass Variability in the Earth System. Science. https://doi.org/10.1126/science.1099192

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.