Integrated Hydrologic Modeling to Untangle the Impacts of Water Management During Drought
Integrated Hydrologic Modeling to Untangle the Impacts of Water Management During Drought
复制标题
综合水文模型揭示干旱期间水管理的影响
DOI:
10.1111/gwat.12995
复制
发表时间:
2020
期刊:
影响因子:
2.6
通讯作者:
Maxwell, Reed M.
中科院分区:
文献类型:
--
作者:
Thatch, Lauren M.;Gilbert, James M.;Maxwell, Reed M.
Over the past century, groundwater levels in California's San Joaquin Valley have dropped by more than 30 m in some areas mostly due to excessive groundwater extraction used to irrigate agricultural lands and sustain a growing population. Between 2012 and 2015, California experienced the worst drought in its recorded history, depleting surface water supplies and further exacerbating groundwater depletion in the region. Due to a lack of groundwater regulation, exact quantities of extracted groundwater in California are unknown and hard to quantify. Recent adoption of the Sustainable Groundwater Management Act has intensified efforts to identify sustainable groundwater use. However, understanding sustainable use in a highly productive agricultural system with an extremely complex surface water allocation system, variable groundwater use, and spatially extensive and diverse irrigation practices is no easy task. Using an integrated hydrologic model coupled with a land surface model, we evaluated how water management activities, specifically a suite of irrigation and groundwater pumping scenarios, impact surface water–groundwater fluxes and storage components and how those activities and the relationships between them change during drought. Results showed that groundwater pumping volume had the most significant impact on long‐term water storage changes. A comparison with total water storage anomaly (TWSA) estimates from NASA's Gravity Recover and Climate Experiment (GRACE) provided some insight regarding which combinations of pumping and irrigation matched the GRACE TWSA estimates, lending credibility to these scenarios. In addition, the majority of long‐term water storage changes during the recent drought occurred in groundwater storage in the deeper subsurface.
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影响因子:
3.8
作者:
J. M. Gilbert;R. Maxwell;D. Gochis
通讯作者:
D. Gochis
影响因子:
6.7
作者:
J. M. Gilbert;R. Maxwell
通讯作者:
R. Maxwell
影响因子:
3.8
作者:
M. Sulis;John L. Williams;P. Shrestha;M. Diederich;C. Simmer;S. Kollet;R. Maxwell
通讯作者:
M. Sulis;John L. Williams;P. Shrestha;M. Diederich;C. Simmer;S. Kollet;R. Maxwell
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
Eloise Kendy;J. Bredehoeft
通讯作者:
J. Bredehoeft