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

0342526 vivonii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，水供需之间的严重不平衡正在引发多个水利益相关者之间的水冲突。NSF - STC半干旱水文和河岸区可持续发展中心（SAHRA）是一个多机构合作的项目，旨在加快半干旱地区的科学知识和水管理水平。鉴于气候变化，科学界迫切需要提供对区域半干旱盆地潜在水文压力的预测。本提案的主要目标是为SAHRA提供高分辨率水文模拟的能力，该模拟具有有效的分布式模型，可以捕获盆地性质和气象强迫的空间异质性。该项目将重点放在降雨-径流耦合模型上，以便：(a)在里约热内卢Grande的多个尺度上表示地表-地下过程的时空分布，(b)模拟气候和土地利用变化的影响。基于tin的实时集成流域模拟器是考虑降雨径流过程空间变异性的模型。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学。此外，与基于网格的模型相比，三角化不规则网络模型通过多分辨率、多尺度域表示可以节省计算量。除了与正在进行的SAHRA研究相结合外，还提出了一项多样化的努力，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学的了解。本科生研究经验（REU）项目每年夏天将有两名学生参与水文数据的收集、分析和模型集成研究。巡回讲座系列（TLS）计划将把基于SAHRA科学和技术的研究成果和推广活动带给当地西班牙裔社区的西班牙语听众。这两项努力共同促进了研究成果的迅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到主要是西班牙裔社区的当地管理机构、决策者和水利益相关者

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