Contribution of global groundwater depletion since 1900 to sea-level rise
Geophysical Research Letters
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Abstract
Removal of water from terrestrial subsurface storage is a natural consequence of groundwater withdrawals, but global depletion is not well characterized. Cumulative groundwater depletion represents a transfer of mass from land to the oceans that contributes to sea-level rise. Depletion is directly calculated using calibrated groundwater models, analytical approaches, or volumetric budget analyses for multiple aquifer systems. Estimated global groundwater depletion during 1900–2008 totals ~4,500 km3, equivalent to a sea-level rise of 12.6 mm (>6% of the total). Furthermore, the rate of groundwater depletion has increased markedly since about 1950, with maximum rates occurring during the most recent period (2000–2008), when it averaged ~145 km3/yr (equivalent to 0.40 mm/yr of sea-level rise, or 13% of the reported rate of 3.1 mm/yr during this recent period).
Suggested Citation
Konikow, L.F., 2011, Contribution of global groundwater depletion since 1900 to sea-level rise: Geophysical Research Letters, v. 38, no. 17, L17401, https://doi.org/10.1029/2011GL048604.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Contribution of global groundwater depletion since 1900 to sea-level rise |
| Series title | Geophysical Research Letters |
| DOI | 10.1029/2011GL048604 |
| Volume | 38 |
| Issue | 17 |
| Publication Date | September 02, 2011 |
| Year Published | 2011 |
| Language | English |
| Publisher | AGU |
| Publisher location | Washington, D.C. |
| Description | L17401 |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Geophysical Research Letters |
| Other Geospatial | Earth |