Changes in Earth’s gravity reveal changes in groundwater storage

Fact Sheet 2018-3032
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Abstract

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.

Suggested Citation

Kennedy, J.R., 2018, Changes in Earth’s gravity reveal changes in groundwater storage: U.S. Geological Survey Fact Sheet 2018–3032, 4 p., https://doi.org/10.3133/fs20183032.

ISSN: 2327-6932 (online)

ISSN: 2327-6916 (print)

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Changes in Earth’s gravity reveal changes in groundwater storage
Series title Fact Sheet
Series number 2018-3032
DOI 10.3133/fs20183032
Year Published 2018
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Arizona Water Science Center
Description 4 p.
Online Only (Y/N) N