U.S. - Thailand Collaboration: Geologic Records of Tropical Cyclone Strikes on the Gulf of Thailand Coast.

美国-泰国合作：热带气旋袭击泰国湾海岸的地质记录。

• 批准号: 1305787
• 负责人: Harry Williams
• 金额: $ 3.9万
• 依托单位: University of North Texas
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-06-01 至 2015-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1305787&HistoricalAwards=false
• 关键词: U.S.; Thailand; Collaboration; Geologic; Records

This research project is a US-Thailand collaborative study with the objective of establishing long-term records of tropical cyclone strikes for the Gulf of Thailand coast. The devastating impact of Hurricane Katrina in the U.S. highlighted the need for a better understanding of tropical cyclone risk and impacts for vulnerable coastlines around the world. In Thailand, historical records of tropical cyclone strikes are short, extending back only 50 or 60 years. The study will employ the new science of paleotempestology (study of ancient storms) to obtain much longer prehistorical records derived from geologic and biologic proxies of tropical cyclone strikes. Currently, very little paleotempestological research has been conducted in this region, even though this coastline is subject to intense tropical cyclone strikes, including the 1989 Category 3 Typhoon Gay ? one of the deadliest tropical cyclones in Thailand?s history, generating 11-m-high swells and causing 800 fatalities in and around the Gulf of Thailand. Field sites have already been selected in preliminary field reconnaissance conducted jointly by researchers from the University of North Texas and Chulalongkorn University. The methods employed will be a combination of trenching and coring of coastal marshes, with the aim of identifying and dating anomalous sand beds that record prehistoric tropical cyclone washover deposits. These deposits will be identified based on sediment texture, organic content, stratigraphy and marine microfossils. The proposed project has important societal benefits because development of long-term records of tropical cyclone strikes improves assessment of recurrence intervals of large, damaging typhoons, such as Typhoon Gay. This project will catalyze future research collaborations between the U.S. and Thailand by representing a first step towards a regional database of paleotempestological records for Southeast Asia, and by integrating research and education, through participation of Chulalongkorn and UNT students.

该研究项目是美国和泰国的一项合作研究，目的是建立泰国湾沿岸热带气旋袭击的长期记录。卡特里娜飓风对美国造成的破坏性影响突出表明，需要更好地了解热带气旋的风险和对世界各地脆弱海岸线的影响。在泰国，热带气旋袭击的历史记录很短，只有50或60年。这项研究将采用新的古风暴学（研究古代风暴），从热带气旋袭击的地质和生物代用品中获得更长的史前记录。目前，很少有古地震学研究已在这一地区进行，即使这条海岸线是受到强烈的热带气旋袭击，包括1989年3级台风盖伊？泰国最致命的热带气旋之一在泰国湾及其周围地区，产生了11米高的涌浪，造成800人死亡。北得克萨斯大学和朱拉隆功大学的研究人员已经在联合进行的初步实地勘察中选定了实地地点。所采用的方法将是在沿海沼泽地挖沟和取芯相结合，目的是查明记录史前热带气旋冲刷沉积物的异常砂床并确定其年代。将根据沉积物结构、有机物含量、地层学和海洋微化石来确定这些矿床。拟议的项目具有重要的社会效益，因为热带气旋袭击的长期记录的发展改善了对大型破坏性台风（如台风盖伊）复发间隔的评估。该项目将促进美国和泰国之间未来的研究合作，为东南亚地区的古地震记录数据库迈出第一步，并通过朱拉隆功和UNT学生的参与整合研究和教育。