International Research Experiences for Students (IRES): US-Ethiopia Collaboration on Hydrological Studies of Semiarid Regions

学生国际研究经验（IRES）：美国-埃塞俄比亚半干旱地区水文研究合作

• 批准号: 0651783
• 负责人: Mekonnen Gebremichael
• 金额: --
• 依托单位: University of Connecticut
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-07-01 至 2010-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0651783&HistoricalAwards=false
• 关键词: International; Research; Experiences; Students; IRES

The proposed research aims to organize and conduct field experiments in Ethiopia to study the key fundamental components of the hydrology of semiarid regions. Each year for three summers four U.S. undergraduates and graduates and one faculty will travel to Ethiopia to conduct field experiments together with Ethiopian counterpart students and faculty. The main purpose of the program is to provide U.S. students with a unique, international, hands-on experience required for succeeding in international research environment. The field experiment involves 'hands-on' training in a number of hydrological sensors, field preparation and design of experiments (geospatial and point data analysis involving GIS and remote sensing), data collection and analysis, teamwork, and dissemination of knowledge through presentations and publications. On account of its semiarid climate, tropical location and strong heterogeneities in ecology, topography and land use, the study region (Arbaminch) in Ethiopia provides an exciting environment to study different hydrological processes and to stimulate an interest in students for discovery-driven science. The proposed research activities are organized into three major thrust areas, the results from which will have a significant influence in our understanding of the key fundamental components of the hydrology of semiarid regions. The specific science objectives are to: 1) Characterize the local-scale space-time variability of rainfall; 2) Quantify the uncertainty in satellite-based evapotranspiration estimates; and 3) Assess the role played by topography, soil moisture and land use in landatmosphere interactions.

拟议研究的目的是在埃塞俄比亚组织和进行实地实验，研究半干旱地区水文学的关键基本组成部分。每年三个夏天，四名美国本科生和研究生以及一名教师将前往埃塞俄比亚与埃塞俄比亚同行的学生和教师一起进行实地实验。该计划的主要目的是为美国学生提供在国际研究环境中取得成功所需的独特，国际，实践经验。实地试验包括一些水文传感器的“实践”培训、实地准备和试验设计（涉及地理信息系统和遥感的地理空间和点数据分析）、数据收集和分析、团队合作以及通过专题介绍和出版物传播知识。由于其半干旱气候，热带地理位置和生态，地形和土地利用的强烈异质性，埃塞俄比亚的研究区域（Arbaminch）提供了一个令人兴奋的环境来研究不同的水文过程，并激发学生对发现驱动的科学的兴趣。 拟议的研究活动分为三大重点领域，其结果将对我们了解半干旱地区水文学的关键基本组成部分产生重大影响。具体的科学目标是：（1）确定降雨量在地方尺度上的时空变化特征;（2）量化基于卫星的蒸散量估计的不确定性;（3）评估地形、土壤湿度和土地利用在陆地大气层相互作用中所起的作用。