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Estimating the human contribution to groundwater depletion in the Middle East, from GRACE data, land surface models, and well observations
Abstract
Data from the Gravity Recovery and Climate Experiment (GRACE) satellite mission are used to estimate monthly changes in total water storage across the Middle East during February 2003 to December 2012. The results show a large negative trend in total water storage centered over western Iran and eastern Iraq. Subtracting contributions from the Caspian Sea and two large lakes, Tharthar and Urmiah, and using output from a version of the CLM4.5 land surface model to remove contributions from soil moisture, snow, canopy storage, and river storage, we conclude that most of the long‐term water loss is due to a decline in groundwater storage. By dividing the region into seven mascons outlined along national boundaries and fitting them to the data, we find that the largest groundwater depletion is occurring in Iran, with a mass loss rate of 25 ± 3 Gt/yr during the study period. The conclusion of significant Iranian groundwater loss is further supported by in situ well data from across the country. Anthropogenic contributions to the groundwater loss are estimated by removing the natural variations in groundwater predicted by CLM4.5. These results indicate that over half of the groundwater loss in Iran (14 ± 3 Gt/yr) may be attributed to human withdrawals.
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Cited by
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Rodell, M., Famiglietti, J. S., Wiese, D. N., Reager, J. T., Beaudoing, H. K., Landerer, F. W., & Lo, M.-H. (2018) · Nature · doi:10.1038/s41586-018-0123-1 · Cited by 2,107
Climate change in the Fertile Crescent and implications of the recent Syrian drought
Kelley, C. P., Mohtadi, S., Cane, M. A., Seager, R., & Kushnir, Y. (2015) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1421533112 · Cited by 1,379
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Madani, K. (2014) · Journal of Environmental Studies and Sciences · doi:10.1007/s13412-014-0182-z · Cited by 708
The pronounced seasonality of global groundwater recharge
Jasechko, S., Birks, S. J., Gleeson, T., Wada, Y., Fawcett, P. J., Sharp, Z. D., McDonnell, J. J., & Welker, J. M. (2014) · Water Resources Research · doi:10.1002/2014wr015809 · Cited by 425
Long, D., Yang, Y., Wada, Y., Hong, Y., Liang, W., Chen, Y., Yong, B., Hou, A., Wei, J., & Chen, L. (2015) · Remote Sensing of Environment · doi:10.1016/j.rse.2015.07.003 · Cited by 265
Metadata
- Authors
- Joodaki, G., Wahr, J., & Swenson, S.
- Venue
- Water Resources Research
- Publisher
- American Geophysical Union (AGU)
- Published
- 2014-03
- Volume
- 50
- Issue
- 3
- Pages
- 2679-2692
- ISSN
- 0043-1397 (ISSN-L)
- 1944-7973
- OpenAlex
- W1966026582
- Cited by
- 283
- References
- 0
- FWCI
- 12.34
- Type
- journal article
- Language
- en
- Open access
- closed
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- Joodaki, G., Wahr, J., & Swenson, S. (2014). Estimating the human contribution to groundwater depletion in the Middle East, from GRACE data, land surface models, and well observations. Water Resources Research. https://doi.org/10.1002/2013wr014633
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