Multi-resolution lake-river framework for simulating streamflows from regional climate model generated runoff for the Nelson-Churchill watershed

气候变化将对全球水资源产生重大影响， 气候和水文循环之间的联系作为一家公用事业公司和省级、国家和全球 作为一个社区，马尼托巴水电公司（MH）将在许多方面受到气候变化的挑战。相关的信息 对河流流量特性的变化， 气候变化背景下的水电站和水电站。MH目前正在进行一项 为更好地了解气候变化的潜在影响而采取的举措数目，特别侧重于 能源需求，极端事件，以及纳尔逊-丘吉尔流域（NCW）的供水。根据 全球气候模式（GCMs），NCW预计将经历相当大的变化， 降水量，这也将反映在季节和年径流。管理未来的水资源 为了最大限度地利用水力发电资源，MH必须将这些预计的 气候模型产生的径流变化。朝着这个方向迈出的第一步将是 建立与区域气候模式（RCMs）兼容的湖泊-河流框架， 由卫生部考虑，为此寻求申请人的专业知识。这一承诺赠款将促进 MH和申请人之间建立新的研究伙伴关系，以建立多分辨率 NCW的湖泊-河流框架，用于从RCM产生的径流估算径流量，及其 验证。将特别强调更好地反映地下水对环境的贡献， 径流量，这是不同的整个NCW作为土壤特性和土壤水分状态的函数。这 框架将有助于MH了解径流分布和极端流量的季节性变化， 对于在气候变化中调整水库运行至关重要。

Climate change will have significant impacts on water resources around the world due to the close connection between climate and the hydrologic cycle. As a utility and a member of the provincial, national and global community, Manitoba Hydro (MH) will be challenged by climate change on many fronts. Information related to changes in streamflow characteristics is important for the operations, planning and adaptation of hydroelectric reservoirs and power stations in the context of a changing climate. MH is currently undertaking a number of initiatives to better understand the potential impacts of climate change, with a particular focus on energy demand, extreme events, and water supply for the Nelson-Churchill Watershed (NCW). According to the Global Climate Models (GCMs), the NCW is expected to experience considerable changes in seasonal precipitation amounts, which will also be reflected in the seasonal and annual runoff. To manage future water resources to maximize hydroelectric power generation, it is important for MH to translate these projected changes in runoff generated by climate models to streamflows. The first step in this direction will be to establish a lake-river framework, compatible with the Regional Climate Models (RCMs) that will be considered by MH, for which the expertise of the applicant is sought. This engage grant will thus foster the development of a new research partnership between MH and the applicant to establish a multi-resolution lake-river framework for the NCW for estimating streamflows from the RCM generated runoff, and its validation. Special emphasis will be put on better representing the ground water contribution to the streamflows, which varies across the NCW as a function of soil characteristics and soil moisture state. This framework will help MH in understanding seasonal shifts in streamflow distribution and extreme flows, which are crucial for adapting reservoir operations in a changing climate.