Enhancing the Water Accounting and Vulnerability Evaluation Model: WAVE
Enhancing the Water Accounting and Vulnerability Evaluation Model: WAVE
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DOI：
10.1021/acs.est.7b05164
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发表时间：
2018-09-18
影响因子：
11.4
通讯作者：
Finkbeiner, Matthias
中科院分区：
文献类型：
--
作者：
Berger, Markus;Eisner, Stephanie;Finkbeiner, Matthias
由于分析产品生命周期中的水消耗的相关性越来越大，水核算和脆弱性评估模型 (WAVE) 已得到更新并在方法上得到增强。大气水分跟踪模型 WAM2-layers 的最新数据用于更新盆地内部蒸发再循环 (BIER) 比率，该比率表示流域内的大气水分循环。用水量对当地的潜在影响通过缺水指数 (WDI) 进行量化。基于水文模型 WaterGAP3，对 WDI 进行了更新和方法上的改进，以表达流域因水的相对稀缺和绝对短缺而导致淡水匮乏的脆弱性。与之前的版本相比，BIER 和 WDI 的空间和时间（每月）分辨率有所提高。与年平均值相比的差异在半干旱和干旱盆地中是相关的，这些盆地的特点是耗水量和可用性的季节性变化很大。为了支持水足迹和生命周期评估的适用性，BIER 和 WDI 被组合成一个集成的 WAVE+ 因子，该因子在不同的时间和空间分辨率上提供。 WAVE+ 方法的适用性在甘蔗案例研究中得到了证明，并将结果与其他影响评估方法获得的结果进行了比较。
Due to the increasing relevance of analyzing water consumption along product life cycles, the water accounting and vulnerability evaluation model (WAVE) has been updated and methodologically enhanced. Recent data from the atmospheric moisture tracking model WAM2-layers is used to update the basin internal evaporation recycling (BIER) ratio, which denotes atmospheric moisture recycling within drainage basins. Potential local impacts resulting from water consumption are quantified by means of the water deprivation index (WDI). Based on the hydrological model WaterGAP3, WDI is updated and methodologically refined to express a basin's vulnerability to freshwater deprivation resulting from the relative scarcity and absolute shortage of water. Compared to the predecessor version, BIER and WDI are provided on an increased spatial and temporal (monthly) resolution. Differences compared to annual averages are relevant in semiarid and arid basins characterized by a high seasonal variation of water consumption and availability. In order to support applicability in water footprinting and life cycle assessment, BIER and WDI are combined to an integrated WAVE+ factor, which is provided on different temporal and spatial resolutions. The applicability of the WAVE+ method is proven in a case study on sugar cane, and results are compared to those obtained by other impact assessment methods.