CAREER: Integrating geophysical data and hydrologic modeling to quantify subsurface water storage along elevation gradients in mountainous terrains

职业：整合地球物理数据和水文模型，量化山区沿海拔梯度的地下水储存量

• 批准号: 2337881
• 负责人: Qifei Niu
• 金额: $ 48.66万
• 依托单位: Boise State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2024
• 资助国家: 美国
• 起止时间: 2024-06-01 至 2029-05-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2337881&HistoricalAwards=false
• 关键词: CAREER; Integrating; geophysical; data; hydrologic

Many areas in the western United States are experiencing a warming climate and more frequent extreme weather conditions such as drought. These changing weather patterns could affect how much of the precipitation flows into streams (becoming stream water) and seeps into the subsurface (becoming soil water and/or groundwater) in mountainous areas. To better manage future water resources, it is critical to understand how a watershed responds to climate change regarding the partitioning of precipitation into stream water, soil water, and groundwater. This project will focus on quantifying various water storages and fluxes at different elevations in a semi-arid watershed in the western United States. Both field tests and computational simulations will be performed. The collected scientific data and developed computational models in this project will contribute to an improved understanding of how the water resources in the mountains respond to climate change. In addition, this project will also encompass significant educational activities, including offering geoscientific field skill training to financially disadvantaged/nontraditional students and providing research experiences to undergraduates on water resources-related issues. This project focuses on how the subsurface water storage buffers the hydrologic process along the elevation gradient in mountainous watersheds. The knowledge gained will help stakeholders effectively manage future water resources in mountainous areas, especially in a warming climate. Following the data-model fusion principle, the project will integrate geophysical data into hydrologic modeling to achieve an improved quantification of various water fluxes and storages in catchments at different elevations in an experimental watershed in southern Idaho. In the field, seismic refraction tests and electrical resistivity monitoring will be performed to characterize the complex subsurface structural heterogeneity and to estimate subsurface water storage dynamics. These field geophysical data will be incorporated into integrated hydrologic modeling to reveal the potential buffering role of subsurface water storage in watershed functions. The educational goal of this project is to promote inclusivity in geoscientific field skills training. A commuter field camp will be offered to accommodate local students and students with personal and financial barriers. A vertically integrated project program will be developed to broaden the participation of undergraduates in water resources-related research at Boise State University. This project will also provide a graduate intern position for students to learn state-of-the-art geophysical techniques and their applications in hydrologic sciences.This award is co-funded by the Hydrologic Sciences program and Established Program to Stimulate Competitive Research (EPSCoR).This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

美国西部的许多地区都经历了温暖的气候和更频繁的极端天气状况，例如干旱。这些不断变化的天气模式可能会影响降水流入溪流（成为溪流），并渗入山区的地下（成为土壤水和/或地下水）。为了更好地管理未来的水资源，重要的是要了解流域如何应对将降水分配到溪流水，土壤水和地下水中的气候变化。该项目将着重于量化美国西部半干旱流域不同海拔的各种水位和通量。将进行现场测试和计算模拟。收集的科学数据和该项目中开发的计算模型将有助于改进对山中水资源如何应对气候变化的理解。此外，该项目还将涵盖重大的教育活动，包括向财务不利/非传统学生提供地球科学现场技能培训，并为与水资源相关的问题提供研究经验。该项目的重点是地下储水如何缓冲山区流域海拔梯度的水文过程。获得的知识将有助于利益相关者有效地管理山区的未来水资源，尤其是在温暖的气候下。遵循数据模型融合原理，该项目将将地球物理数据整合到水文建模中，以改善对爱达荷州南部实验性水域不同海拔流域中各种水通量和储藏的定量。在现场，将执行地震折射测试和电阻率监测，以表征复杂的地下结构异质性并估算地下储水动力学。这些现场地球物理数据将纳入整合的水文建模中，以揭示地下储水在流域功能中的潜在缓冲作用。该项目的教育目标是促进地球科学现场技能培训中的包容性。将提供一个通勤野营训练营，以容纳具有个人和财务障碍的当地学生和学生。将开发一项垂直整合的项目计划，以扩大本科生在博伊西州立大学与水资源相关的研究中的参与。该项目还将为学生提供一个研究生实习职位，让学生学习最先进的地球物理技术及其在水文科学中的应用。该奖项由水文科学计划和建立的计划共同资助，旨在刺激竞争性研究（EPSCOR）。这项奖项是通过评估律师的Intelliatial and Intelliatial and Intelliatial and Intelliatial and Intelliatial的审查师。