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首页> 外文期刊>Climatic Change >A stakeholder project to model water temperature under future climate scenarios in the Satus and Toppenish watersheds of the Yakima River Basin in Washington, USA
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A stakeholder project to model water temperature under future climate scenarios in the Satus and Toppenish watersheds of the Yakima River Basin in Washington, USA

机译：一个利益相关者项目，用于模拟美国华盛顿州亚基马河流域的现状和Toppenish分水岭在未来气候情景下的水温

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摘要

The goal of this study was to support an assessment of the potential effects of climate change on select natural, social, and economic resources in the Yakima River Basin. A workshop with local stakeholders highlighted the usefulness of projecting climate change impacts on anadromous steelhead (Oncorhynchus mykiss), a fish species of importance to local tribes, fisherman, and conservationists. Stream temperature is an important environmental variable for the freshwater stages of steelhead. For this study, we developed water temperature models for the Satus and Toppenish watersheds, two of the key stronghold areas for steelhead in the Yakima River Basin. We constructed the models with the Stream Network Temperature Model (SNTEMP), a mechanistic approach to simulate water temperature in a stream network. The models were calibrated over the April 15, 2008 to September 30, 2008 period and validated over the April 15, 2009 to September 30, 2009 period using historic measurements of stream temperature and discharge provided by the Yakama Nation Fisheries Resource Management Program. Once validated, the models were run to simulate conditions during the spring and summer seasons over a baseline period (1981-2005) and two future climate scenarios with increased air temperature of 1 A degrees C and 2 A degrees C. The models simulated daily mean and maximum water temperatures at sites throughout the two watersheds under the baseline and future climate scenarios.
机译：这项研究的目的是支持评估亚基马河流域气候变化对某些自然，社会和经济资源的潜在影响。与当地利益相关者共同举办的研讨会强调了预测气候变化对无头的硬头（Oncorhynchus mykiss）的影响的有用性，这种头对当地部落，渔民和保护主义者很重要。溪流温度是钢铁头淡水阶段的重要环境变量。在这项研究中，我们开发了Satus和Toppenish流域的水温模型，这是Yakima河流域中两个主要的钢头要塞地区。我们使用流网络温度模型（SNTEMP）构建模型，该模型是一种模拟流网络中水温的机械方法。这些模型在2008年4月15日至2008年9月30日期间进行了校准，并在2009年4月15日至2009年9月30日期间进行了验证，使用了Yakama国家渔业资源管理计划提供的溪流温度和流量的历史测量数据。验证后，将运行这些模型以模拟基线期（1981-2005年）内的春季和夏季情况以及两个未来气候情景，其中气温升高1 A摄氏度和2 A摄氏度。这些模型模拟每日平均值在基线和未来气候情景下，两个流域的站点最高水温。

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