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

这项行动资助了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开发研究所开展一项名为“大坝建设对韩国河口沉积物运输的影响”的研究项目。主持的科学家是李熙俊博士。此次研究项目的智力价值在于，能够提高对洛洞河口和永山口沉积动力学和地层的认识。上个世纪的人为工程导致了河流通过河口水坝的偶发性排放，对釜山和木浦沿海地区的沉积时间和通量产生了重大影响。利用高分辨率地球物理（CHIRP）和岩心资料，确定了变化对河口沉积物捕获效率的影响。为了有效地量化洛东江和荣山江流域的变化，正在建设一个空间参考数据库，其中包括主要水坝的建设时间和位置、测量站的水文测量数据、历史和现代土地利用图和水深图、航空照片、地质和土壤调查数据。EAPSI奖学金的广泛影响包括为研究员提供美国以外的第一手研究经验；介绍该地区的科学、科学政策和科学基础设施；以及对社会、文化和语言的了解。这些活动符合美国国家科学基金会的目标，即在其科学家、工程师和教育工作者的职业生涯早期培养国际合作，从而确保美国科学劳动力具有全球意识。

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.