U.S.-Philippines Cooperative Research on Development of a Predictive Capacity for the Occurrence of Large Amplitude Coastal Seiches

本提案要求提供资金，以允许伍兹霍尔海洋研究所物理海洋学系的David C.Chapman博士和地质和地球物理系的Graham H.Giese博士与菲律宾大气、地球物理和天文服务管理局(PAGASA)国家大气科学研究所的Rolu P.Encarnacion先生继续合作，一项为期24个月的合作研究计划，以发展对大规模沿海海潮发生的预测能力。合作者将获得从菲律宾巴拉望岛普林塞萨港到陆架边缘的海平面波动、水温和盐度的时间序列测量。从这些测量中获得的数据将被输入到一个改进的数值模式中，并将输出与测量的海流特征进行比较。沿海海湾是一种长时间的驻波，在港口、海湾和陆架上经常观察到水位振荡，周期从几分钟到几个小时不等。即使是小的垂直运动也可能伴随着相对较大的水平运动，产生的电流可能会使船只失控，并导致它们相撞或搁浅。发展了一个简单的双层模型，它将内波激发的地震与层结程度联系起来。该模型的输出将与实测的海流特征进行比较。这项研究的最终目的是对巴拉望岛海湾的可靠预测。合作者是这一研究领域备受尊敬的科学家。本项目将使他们能够将自己的才华和兴趣结合起来，实现互利共赢。该项目与发展中国家科学计划的目标相关，该计划旨在通过交流科学信息、思想、技能和技术，以及通过在互利问题上的合作，提高美国科学家和工程师与发展中国家同行之间的合作水平。

This proposal requests funds to permit Drs. David C. Chapman, Department of Physical Oceanography, and Graham H. Giese, Department of Geology and Geophysics, Woods Hole Oceanographic Institution, to pursue with Mr. Rolu P. Encarnacion, National Institute of Atmospheric Sciences, Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA), for a period of 24 months, a program of cooperative research to develop a predictive capacity for the occurrence of large-amplitude coastal seiches. The collaborators will obtain time series measurements of sea-level oscillations and water temperature and salinity from Puerto Princesa Harbor, Palawan Island, Philippines, out to the shelf edge. Data obtained from these measurements will be input into an improved numerical model, and the output will be compared with measured seiche characteristics. Coastal seiches are long, standing waves that are frequently observed as water-level oscillations in harbors, bays, and over shelves with periods ranging from a few minutes to a few hours. Even small vertical motions may be accompanied by relatively large horizontal motions, producing currents which can carry ships out of control and cause their collision or grounding. A simple two-layer model has been developed which relates seiche excitation by internal waves to the degree of stratification. The output from this model will be compared with measured seiche characteristics. The ultimate objective of this research is reliable predictions of Palawan Island seiches. The collaborators are highly respected scientists in the field of this research. The present project will allow them to combine their talents and interests for mutual benefit. This project is relevant to the objectives of the Science in Developing Countries Program which seeks to increase the level of cooperation between U.S. scientists and engineers and their counterparts in developing countries through the exchange of scientific information, ideas, skills, and techniques and through collaboration on problems of mutual benefit.