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首页> 外文期刊>Journal of water resource and protection >Implications of the New Operational Rules for Cantareira Water System: Re-Reading the 2014-2016 Water Crisis
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Implications of the New Operational Rules for Cantareira Water System: Re-Reading the 2014-2016 Water Crisis

机译：Cantareira水系统新的运营规则的影响：重新阅读2014-2016水危机

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During the 2014-2016 water shortage crisis, the Metropolitan Area of Sao Paulo (MASP) water supply system extracted pumping volume from the Cantareira System. Before the crisis, between 1984 and 2013, the reservoir's average water extraction flow was 29.6 m~3·s~(-1). During the period of pumping volume usage, the average extraction flow was 16.2 m~3·s~(-1). Following the crisis, two new mitigation policies were implemented: a water extraction Resolution (in 2017) and a Resolution for water reallocation from another basin (in 2018). This study provides a novel investigation of the Cantareira System water crisis by assessing the mitigation policies impacts on storage level dynamics. The system storage level was evaluated using the reservoir simulation module of PDM-Cemaden hydrological model, assuming that the new policies had already been implemented prior to the crisis. A control simulation was run with observed in- and out-flow and operationally-practiced extraction flow. The storage level dynamics impacts were evaluated under 4 water mitigation policies scenarios varying the policies implementation starting date, the extraction flow range and including the water reallocation variable. Results showed that pumping volume would only need extraction during a short period (Scenarios Ⅰ, Ⅲ and Ⅳ), and considering the water reallocation, pumping volume extraction would not have been necessary (Scenario Ⅱ). Although the pumping volume would still have been extracted during a short period, water shortage impact would have been lessened, had the policies been already implemented before the crisis. The water mitigation policies implementation supports the reservoirs storage management but does not guarantee that MASP water demand is fully met. Therefore, in order to effectively improve water security, further policies and practices to reduce water demand and enhance supply should be considered.
机译：在2014 - 2016年的缺水危机期间，圣保罗大都市区（MASP）供水系统从Cantareira系统提取泵送量。在危机之前，1984年至2013年间，水库的平均水萃取流量为29.6米〜3·s〜（-1）。在泵送量使用期间，平均萃取流量为16.2米〜3·s〜（-1）。在危机之后，实施了两项新的缓解政策：水提取决议（2017年）和另一个盆地的水重新分配的决议案（2018年）。本研究通过评估缓解政策对储存水平动态的影响，为Cantareira系统水危机提供了新颖的调查。使用PDM-Cemaden水文模型的储库模拟模块评估系统存储级别，假设新政策已经在危机之前已经实施。通过观察到的内容和流出和操作实践的提取流量运行控制仿真。在4个水缓解政策方案下评估存储级别动态影响，改变政策实施开始日期，提取流量范围，包括水重新分配变量。结果表明，泵送量只需要在短时间内提取（情景Ⅰ，Ⅲ和ⅳ），并且考虑到水重新分配，不需要泵送体积提取（场景Ⅱ）。虽然在短时间内仍然提取泵送量，但仍将减少水资源短缺的影响，这些政策已经在危机之前已经实施。水缓解政策实施支持储层存储管理，但不保证捣固水需求完全满足。因此，为了有效提高水安全，应考虑降低水需求和增强供应的进一步政策和实践。

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