Changes in the amount of water stored in underground aquifers cause small changes in Earth’s gravitational field. The U.S. Geological Survey’s Southwest Gravity Program has developed methods for measuring terrestrial gravity changes with part-per-billion precision. The measurements allow scientists to map changes in groundwater storage and to improve models that simulate groundwater flow.
Citation Information
| Publication Year | 2018 |
|---|---|
| Title | Changes in Earth’s gravity reveal changes in groundwater storage |
| DOI | 10.3133/fs20183032 |
| Authors | Jeffrey R. Kennedy |
| Publication Type | Report |
| Publication Subtype | USGS Numbered Series |
| Series Title | Fact Sheet |
| Series Number | 2018-3032 |
| Index ID | fs20183032 |
| Record Source | USGS Publications Warehouse |
| USGS Organization | Arizona Water Science Center |