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Article

Estimation of Groundwater Depletion in Iran’s Catchments Using Well Data

1
Department of Civil and Environmental Engineering, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway
2
Faculty of Science and Technology, Norwegian University of Life Sciences (NMBU), 1430 Akershus, Norway
*
Author to whom correspondence should be addressed.
Academic Editor: Alban Kuriqi
Water 2022, 14(1), 131; https://doi.org/10.3390/w14010131
Received: 8 November 2021 / Revised: 28 December 2021 / Accepted: 31 December 2021 / Published: 5 January 2022
(This article belongs to the Topic Water Management in the Era of Climatic Change)
Iran is experiencing significant water challenges that have now turned water security into a national priority. By estimating secular trend groundwater storage in Iran between 2002 and 2017, we see that there is an intensive negative trend, even −4400 Mm3 in some areas. These estimations show shifting in the climate and extra extraction from aquifers for agricultural use in some areas in Iran. The secular trend of groundwater storage changes across the whole of Iran inferred from observation well data is −20.08 GT/yr. The secular trends of GWS changes based on observation well data are: −11.55 GT/yr for the Central Plateau basin, −3.60 GT/yr for the Caspian Sea basin, −3.0 GT/yr for the Persian Gulf and Oman Sea basin, −0.53 GT/yr for the Urmieh Lake basin, −0.57 GT/yr for the Eastern Boundary basin, and −0.83 GT/yr for the Gharaghom basin. The most depleted sub-basin (Kavir Markazi) has secular trends of GWS changes of −4.503 GT/yr. This study suggests that groundwater depletion is the largest single contributor to the observed negative trend of groundwater storage changes in Iran, the majority of which occurred after the drought in 2007. The groundwater loss that has been accrued during the study period is particularly alarming for Iran, which is already facing severe water scarcity. View Full-Text
Keywords: well data; groundwater storage changes; secular trend; agriculture; water management well data; groundwater storage changes; secular trend; agriculture; water management
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MDPI and ACS Style

Safdari, Z.; Nahavandchi, H.; Joodaki, G. Estimation of Groundwater Depletion in Iran’s Catchments Using Well Data. Water 2022, 14, 131. https://doi.org/10.3390/w14010131

AMA Style

Safdari Z, Nahavandchi H, Joodaki G. Estimation of Groundwater Depletion in Iran’s Catchments Using Well Data. Water. 2022; 14(1):131. https://doi.org/10.3390/w14010131

Chicago/Turabian Style

Safdari, Zohreh, Hossein Nahavandchi, and Gholamreza Joodaki. 2022. "Estimation of Groundwater Depletion in Iran’s Catchments Using Well Data" Water 14, no. 1: 131. https://doi.org/10.3390/w14010131

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