首页|Changes in sea surface temperature in western South China Sea over the past 450 ka
Changes in sea surface temperature in western South China Sea over the past 450 ka
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Sea surface temperature over the past 450 ka was obtained by the unsaturation of molecular fossil-long chain alkenone with a resolution of about 1 ka from the western South China Sea. This is the longest temperature profile in the South China Sea at such high resolution. The U(k)37-SST results revealed similar glacial-interglacial cycles as the (σ)18ο profile of planktonic foraminifera,with SST variability of 23-25.5℃ for glacial and 25-28℃ for interglacial periods. The highest SST (28.4℃) was recorded at MIS5.5 and lowest SST (22.6℃) during MIS2. The SST record preceded the planktonic foraminiferal (σ)18ο on five glacial-interglacial transitions. Comparison of temperature records from the Southern and Northern Hemispheres indicated a more Southern Hemisphere-like pattern for the temperature variation in the SCS. Strong precession and semiprecession signals in the spectra of our SST record manifest the tropical phenomena.
sea surface temperature,unsaturation of long chain alkenone,South China Sea,paleoclimate,late Quaternary
LI Li、WANG Hui、LI JianRu、ZHAO MeiXun、WANG PinXian
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State Key Laboratory of Marine Geology,Tongji University,Shanghai 200092,China
国家自然科学基金国家自然科学基金同济大学优秀青年基金国家重点基础研究发展规划(973计划)Shanghai Rising Star Program
NETL
NSTL
万方数据
维普
