Mon Oct 13, F. Flechtner
• Sorted by Date • Sorted by Last Name of First Author •
Scanlon, Bridget R., Pool, Donald R., Rateb, Ashraf, Conway, Brian, Sorensen, Kathryn, Udall, Bradley, and Reedy, Robert C., 2025. Multidecadal drought impacts on the Lower Colorado Basin with implications for future management. Communications Earth and Environment, 6(1):214, doi:10.1038/s43247-025-02149-9.
• from the NASA Astrophysics Data System • by the DOI System •
@ARTICLE{2025ComEE...6..214S,
author = {{Scanlon}, Bridget R. and {Pool}, Donald R. and {Rateb}, Ashraf and {Conway}, Brian and {Sorensen}, Kathryn and {Udall}, Bradley and {Reedy}, Robert C.},
title = "{Multidecadal drought impacts on the Lower Colorado Basin with implications for future management}",
journal = {Communications Earth and Environment},
keywords = {Earth Sciences, Physical Geography and Environmental Geoscience},
year = 2025,
month = mar,
volume = {6},
number = {1},
eid = {214},
pages = {214},
abstract = "{Overallocation of Colorado River water and groundwater alongside
multidecadal drought underscore the need to understand water-
resource dynamics. Here we assess water-storage variations using
satellites, regional modeling, and monitoring to inform future
management. Total water storage loss from Gravity Recovery and
Climate Experiment (GRACE) satellites was dominated by Lower
Basin declines (80\% of total), exceeding Lake Mead capacity by
40\%. These Lower Basin storage declines were dominated by
groundwater depletion (60\% of total), with cumulative depletion
hotspots {\ensuremath{\leq}}11 m (2002{\textendash}2023) and
subsidence {\ensuremath{\leq}}1 m (2010{\textendash}2024).
Regional groundwater modeling shows intensive depletion
(1940s{\textendash}1970s) followed by partial recovery since the
early 1980s from irrigation reduction, wet climate cycles (early
1980s{\textendash}1990s), and Colorado River water transfers to
Central Arizona. Managed aquifer recharge and incidental
recharge from imported surface-water irrigation led to a 3-m
average groundwater-level rise in Central Arizona Active
Management Areas (2000{\textendash}2023). Projected declines in
Colorado River water transfers to Central Arizona could lead to
further depletion and subsidence. Water transfers from
agricultural to municipal/industrial sectors would improve
future management. Understanding system dynamics related to
climate and human drivers is essential for developing future
conjunctive surface-water and groundwater management strategies.}",
doi = {10.1038/s43247-025-02149-9},
adsurl = {https://ui.adsabs.harvard.edu/abs/2025ComEE...6..214S},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
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