Images-Paleoclimate of the Western Pacific and East Asia

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Project title

Code/計畫編號

NSC96-2611-M019-008

Translated Name/計畫中文名

國際海洋古全球變遷研究---西太平洋與東亞之古氣候---總計畫

Project Coordinator/計畫主持人

Min-Te Chen

Funding Organization/主管機關

National Science and Technology Council

Department/Unit

Institute of Earth Sciences

Website

https://www.grb.gov.tw/search/planDetail?id=1455269

Year

2007

Start date/計畫起

01-08-2007

Expected Completion/計畫迄

01-07-2008

Bugetid/研究經費

5207千元

ResearchField/研究領域

海洋科學

國際海洋古全球變遷研究(IMAGES)之計畫總目標為探究過去三十萬年的全球海洋與氣候變化史，結合此國際合作計畫之目標與旨趣，臺灣IMAGES計畫在前三期的研究工作中（1996-2006)，已陸續完成南海、東海、新幾內亞、菲律賓東南外海等西太平洋巨型長管活塞岩心的探取與古海洋資料分析。在IMAGES 新年度計畫中（2007-2010)，總計畫將目標延伸擴展為西太平洋與東亞的古氣候综合研究(IMAGES-Paleoclimate of the Western Pacific and East Asia)，並以本區域的海洋沉積物岩心、湖泊岩心、洞穴沉積物古氣候記錄為重點，建立區域海陸氣候變化自末次冰期以來的連續記錄，發展高精確度的年代模式，對比海陸氣候反應幅度與時序的差異；並侧重目前較缺乏的西太平洋暖池的印尼海海域，與亞熱帶-熱帶大陸與東南亞的古氣候記錄的搜尋與研究。總計畫並將負責進行新獲得的高沉積速率區岩心底棲或浮游有孔蟲氧同位素分析與碳14定年，並佐以磁場強度變化、鈾系定年、與極區冰心和鄰近區域之洞穴沉積物古氣候記錄連比所獲得的年代控制點，建立岩心的高解析度年代模式，進一步確認西太平洋氣候變化與東亞季風區的時序關係。總計畫亦將透過國際合作，執行探取西太平洋暖池的印尼海海域的高沉積速率岩心航次，大陸湖泊鑽探，與建立東亞地區湖泊岩心與洞穴沉積物之古氣候資料庫。總計畫並將支援與協調各子計畫主持人，完成岩心多重古氣候代用指標的分析工作，包括陸地河流或風源沉積物或有機物、有孔蟲化石碳氧穩定同位素、有孔蟲與矽藻化石群組合、微量元素所推估的海水表面溫鹽度、基於海洋微體化石或鈾系放射性同位素所推估的海洋生物生產力與營養鹽通量、與海陸源有機標記物等。預期新年度的IMAGES計畫執行將持續強化地球環境與氣候變遷相關課題的教育訓練與海洋地質、古海洋、岩心研究環境與研究基礎設施的改進~總計畫並將持續支援共同主持人參與國際IMAGES岩心探取航次，保持與國際古海洋岩心位址調查與規畫活動與國際研討會之參與、提高古海洋研究論文在SCI期刊上發表的質量。總計畫並將提供國內外IMAGES相關計畫之協調、諮詢、資訊交換、資料庫管理、岩心採樣、國外相關會議參加、與國內外論文專輯出版等服務。 "IMAGES (International Marine Past Global Change Study) project aims to study the history of ocean and climate variability over the past 300,000 years. Under the framework of the international objectives and research interests, Taiwan IMAGES projects (1996-2006) have actively participated international IMAGES activities and successfully retrieved giant piston sediment cores mainly from the South China Sea, East China Sea, Papua margins, and southeastern Philippine Seas, and have developed active research programs of paleoceanographic core analyses. In the new phase of the IMAGES service project (2007-2010) our science objectives will be expanded into “IMAGES-Paleoclimate of the Western Pacific and East Asia”, focusing on reconstruction and comparison of paleoclimatic records of marine and lake sediments, and cave sediments since the last glacial stage. The scientific objectives are to develop continuous, high-resolution records for identifying different climatic responses and phasing relationships between oceans and lands since the glacial stage. The new IMAGES projects will organize a marine core survey cruise to the Indonesian seas in year 2007-2008 for retrieving high-sedimentation rate cores from the western margins of the Western Pacific Warm Pool, and conduct lake drilling in Mainland China, and establish a paleoclimatic data bank of East Asian lake and cave sediment cores for marine and terrestrial comparison. In the service project, funding is requested to analyze foraminifer oxygen isotopes and AMS 14C of carbon samples. The chronostratigraphies are supplemented by high-resolution analyses of paleomagnetic intensity, U-series radiogenic isotope, and age-correlation with polar ice cores and cave deposit records from nearby regions for establishing high-resolution age models for marine, lake, and cave sediment cores. These data will be used to document and identify any synchronous / asynchronous timing relationship between the climate variations in the western Pacific warm pool and in East Asian monsoon regions. The service project will provide better coordination for all IMAGES project investigators in conducting core analyses and research, with aiming at better quantifying past terrestrial fluvial or eolian sediment fluxes, stable oxygen and carbon isotopes of foraminifers, planktic foraminifer and diatom assemblages, sea-surface salinity estimates based on marine microfossils or trace metals, sediment flux, productivity, and nutrient changes estimated by microfossils or radiogenic U-series. The service project will also continue on strengthening and improving establishing permanent equipments and infrastructures that are necessary for paleoceanographic and paleoclimatological research in Taiwan; strengthening education and training for Ph.D. students' programs; and continuing participating future marine core cruise activities, site survey and cruise planning. The service project will continue promoting high-quality IMAGES-related SCI publications in international journals; and provide a platform for planning of coordination, exchange of information, consultation, data base management, core sampling services, attending international workshops and meetings, publications in national and international journals for all project investigators."

Keyword(s)

古海洋
古氣候
第四紀
西太平洋
東亞
沉積物岩心
Paleoceanography
Paleoclimatology
Quaternary
Western Pacific
East Asia
Sedimentary Core

DSpace CRIS

Images-Paleoclimate of the Western Pacific and East Asia

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