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Does More Storage Give California More Water?

机译:更多的存储给加州提供更多的水吗?

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Increasing reservoir storage is commonly proposed to mitigate increasing water demand and provide drought reserves, especially in semiarid regions such as California. This paper examines the value of expanding surface reservoir capacity in California using hydroeconomic modeling for historical conditions, a future warm-dry climate, and California's recently adopted policy to end groundwater overdraft. Results show expanding surface storage capacity rarely provides sizable economic value in most of California. On average, expanding facilities north of California's Delta provides some benefit in 92% of 82 years modeled under historical conditions and in 61% of years modeled in a warm-dry climate. South of California's Delta, expanding storage capacity provides no benefits in 14% of years modeled under historical conditions and 99% of years modeled with a warm-dry climate. Results vary across facilities between and within regions. The limited benefit of surface storage capacity expansion to statewide water supply should be considered in planning California's water infrastructure.
机译:通常提出增加水库存储,以减轻增加的水需求并提供干旱储备,特别是在加利福尼亚如诸如半干旱地区。本文介绍了利用历史条件,未来温干燥气候和加利福尼亚最近采用了最近采用了最终地下水透支的政策的氢经济型号扩张了加利福尼亚州的表面储层能力的价值。结果表明,扩展的表面存储容量很少在加利福尼亚大部分地区提供相当大的经济价值。平均而言,加利福尼亚州北部的扩展设施在历史条件下建模的82倍的92%提供了一些福利,并以温暖的气候建模的61%。加州三角洲以南,扩大储存能力在历史条件下建模的14%和99%的历史上提供了80多年的福利,而且具有温暖的气候。结果在地区和地区之间的设施各不相同。在规划加州的水基础设施方面,应考虑表面储存能力扩展到全态供水的有限效益。

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