NSF East Asia and Pacific Summer Institute for FY 2012 in Korea

这项行动资助德克萨斯农工大学的约书亚雷蒙德威廉姆斯于2012年夏天在韩国京畿道安山市的韩国海洋研究与发展研究所开展一个题为“大坝建设对韩国河口沉积物运输的影响”的研究项目。 主持科学家是李熙俊博士。该研究项目的学术价值是提高对洛东江口和永山河口的沉积动力学和地层学的认识。 上个世纪的人为工程导致了河口大坝的间歇性河流排放，显著影响了釜山和木浦海岸带内沉积的时间和通量。 通过高分辨率地球物理（CHIRP）和核心数据，改变河口沉积物截留效率的影响正在确定。 为了有效地量化洛东江和永山河流域内的变化，正在建立一个空间参照数据库，其中包括建造大型水坝的时间和地点、测量站提供的水文数据、历史和现代土地使用图和测深图、航空照片以及地质和土壤调查数据。 EAPSI奖学金的更广泛的影响包括为研究员提供美国以外的第一手研究经验;介绍各自所在地的科学，科学政策和科学基础设施;以及社会，文化和语言的方向。 这些活动符合NSF的目标，即在科学家，工程师和教育工作者的职业生涯早期进行国际合作教育，从而确保具有全球意识的美国科学工作者。

This action funds Joshua Raymond Williams of Texas A&M University to conduct a research project, entitled "Impact of dam construction on South Korean estuary sediment transport," during the summer of 2012 at Korea Ocean Research and Development Institute in Ansan-si, Gyeonggi-do, Korea. The host scientist is Dr. Hee Jun Lee.The Intellectual Merit of the research project is to advance the knowledge of the sediment dynamics and stratigraphy of the Nakdong and Yeongsan estuaries. Anthropogenic engineering in the last century has resulted in episodic river discharge through estuarine dams, significantly impacting the timing and flux of sedimentation within the coastal zones of Busan and Mokpo. Through high resolution geophysical (CHIRP) and core data, the impact of alterations modifying the sediment trapping efficiency of the estuaries is being determined. In order to effectively quantify the changes within the Nakdong and Yeongsan rivers drainage basins, a spatially referenced database is being constructed and includes timing and placement of the construction of major dams, available hydrographic data from gauging stations, historical and modern land usage maps and bathymetric charts, aerial photographs, and geologic and soil survey data. Broader Impacts of an EAPSI fellowship include providing the Fellow a first-hand research experience outside the U.S.; an introduction to the science, science policy, and scientific infrastructure of the respective location; and an orientation to the society, culture and language. These activities meet the NSF goal to educate for international collaborations early in the career of its scientists, engineers, and educators, thus ensuring a globally aware U.S. scientific workforce.