High Performance, Multiple Resolution Modeling of Semi-Arid Hydrology at Regional Scales

区域尺度半干旱水文学的高性能、多分辨率建模

• 批准号: 0342526
• 负责人: Enrique Vivoni
• 金额: $ 13.01万
• 依托单位: New Mexico Institute of Mining and Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-03-15 至 2007-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0342526&HistoricalAwards=false
• 关键词: Performance; Multiple; Resolution; Modeling; Semi

0342526VivoniIn the face of increasing demands from urban areas, irrigation and environmental concerns, water management in semi-arid areas is difficult. In the Southwestern US, a critical unbalance between water supply and demand is prompting water conflicts between multiple water stakeholders. The NSF STC Center for the Sustainability of semi-Arid Hydrology and Riparian Areas (SAHRA) is a multi-institutional effort to accelerate the state of scientific knowledge and water management in semi-arid areas. In light of climate variations, the scientific community has an urgent need to deliver predictions of potential hydrologic stress in regional semi-arid basins. The primary goal of this proposal is to provide SAHRA the capability to perform fine-resolution hydrologic simulations with an efficient distributed model that captures spatial heterogeneities in basin properties and meteorological forcing. The project focuses on coupled rainfall-runoff modeling in order to: (a) represent the spatial-temporal distribution of surface-subsurface processes at multiple scales over the Rio Grande, and (b) simulate the effect of climate and land-use change. The TIN-based Real-time Integrated Basin Simulator is the proposed model to account for the spatial variability of the rainfall-runoff process. Through integration into a high performance computing environment, the proposed model will improve the surface hydrology in the Los Alamos National Laboratory fine-resolution model. In addition, the triangulated irregular network model will allow computational savings as compared to grid-based models through the multi-resolution, multi-scale domain representation.In addition to integrating with on-going SAHRA research, a diversity effort is proposed for enhancing the participation of Hispanic/Latino undergraduates in semi-arid research and promoting hydrologic understanding in local high schools, community colleges and universities. A Research Experience for Undergraduates (REU) program will involve two students each summer in research involved with the collection, analysis and model integration of hydrologic data. A Traveling Lecture Series (TLS) program will bring research results and outreach activities based on SAHRA science and technology to Spanish-speaking audiences in local Hispanic communities. Together, these two efforts complement the scientific proposal by leading to the rapid dissemination of research results and the establishment of long-term relationships. Ultimately, the knowledge gained from the coupled modeling system can be transferred to the local management agencies, decision makers and water stakeholder in the primarily Hispanic communities

0342526Vivoni面对城市地区日益增长的需求、灌溉和环境问题，半干旱地区的水管理很困难。在美国西南部，水供需之间的严重失衡正在引发多个水利益相关者之间的水冲突。 NSF STC 半干旱水文和河岸地区可持续性中心 (SAHRA) 是一个多机构共同努力的项目，旨在加速半干旱地区的科学知识和水管理状况。鉴于气候变化，科学界迫切需要对区域半干旱盆地的潜在水文压力进行预测。该提案的主要目标是为 SAHRA 提供利用高效分布式模型执行精细分辨率水文模拟的能力，该模型可捕获流域特性和气象强迫的空间异质性。该项目重点关注降雨-径流耦合建模，以便：(a) 表示格兰德河上多个尺度的地表-地下过程的时空分布，以及 (b) 模拟气候和土地利用变化的影响。基于 TIN 的实时综合流域模拟器是为了解释降雨径流过程的空间变化而提出的模型。通过集成到高性能计算环境中，所提出的模型将改善洛斯阿拉莫斯国家实验室精细分辨率模型中的地表水文。此外，与基于网格的模型相比，通过多分辨率、多尺度域表示，三角不规则网络模型将节省计算量。除了与正在进行的SAHRA研究相结合外，还提出了一项多样性工作，以加强西班牙裔/拉丁裔本科生对半干旱研究的参与，并促进当地高中、社区学院和大学对水文的理解。本科生研究体验 (REU) 项目每年夏天将让两名学生参与涉及水文数据收集、分析和模型集成的研究。巡回讲座系列 (TLS) 计划将为当地拉美裔社区的西班牙语观众带来基于 SAHRA 科学技术的研究成果和外展活动。这两项努力共同促进了研究成果的快速传播和长期关系的建立，从而补充了科学建议。最终，从耦合建模系统中获得的知识可以转移给主要西班牙裔社区的当地管理机构、决策者和水利益相关者