文献类型：期刊文献

英文题名：Northern South China Sea SST changes over the last two millennia and possible linkage with solar irradiance

作者：Kong, Deming[1,2];Wei, Gangjian[3];Chen, Min-Te[4];Peng, Shiyun[1];Liu, Zhonghui[2]

机构：[1]Guangdong Ocean Univ, Coll Ocean & Meteorol, Guangdong Prov Key Lab Coastal Ocean Variat & Disa, Zhanjiang 524088, Peoples R China;[2]Univ Hong Kong, Dept Earth Sci, Hong Kong, Hong Kong, Peoples R China;[3]Chinese Acad Sci, Guangzhou Inst Geochem, CAS Key Lab Marginal Sea Geol, Guangzhou 510540, Guangdong, Peoples R China;[4]Natl Taiwan Ocean Univ, Inst Appl Geosci, Keelung 20224, Taiwan

年份：2017

卷号：459

起止页码：29

外文期刊名：QUATERNARY INTERNATIONAL

收录：SCI-EXPANDED(收录号：WOS:000416137600003)、、Scopus(收录号：2-s2.0-85031415747)、WOS

基金：This work was partially supported by the National Key Research and Development Program of China (2016YFA0601204), National Natural Science Foundation of China (41606070 and 41476010), HK RGC (HKU 707612P) and Foundation for Distinguished Young Teacher in Higher Education of Guangdong (YQ2014004). HKU research facility was supported by the Special Equipment Grant from the University Grants Committee of the Hong Kong Special Administrative Region, China (SEG HKU01).

语种：英文

外文关键词：Alkenone; South China Sea; SST; 2ka; Solar irradiance

外文摘要：High-resolution surface temperature records over the last two millennia are crucial to understanding the forcing and response mechanism of Earth's climate. Here we report a bidecadal-resolution sea surface temperature (SST) record based on long-chain alkenones in a gravity sediment core retrieved from the northern South China Sea. SST values varied between 26.7 and 27.5 degrees C, with a total variability similar to 1 degrees C over the last 2000 years. The general SST variation pattern matches well with total solar irradiance (TSI) changes. Relatively warm period between 800 and 1400 AD and cool period 1400-1850 AD could be identified, in agreement with the commonly defined periods of Medieval Warm Period and Little Ice Age. Within chronological uncertainty, notable short cooling events at 640-670 AD, 1030-1080 AD, 1260-1280 AD and 1420-1450 AD, coincide with large volcanic eruption events. The general coincidence of SST changes with TSI and volcanic eruption events suggests strong impact of external forcing on sea surface conditions in the studied area. In addition to the direct TSI changes, volcanic eruptions might have induced oceanic and atmospheric circulation adjustments which might be responsible for the short cooling events as revealed in the alkenone-SST record. (c) 2017 Published by Elsevier Ltd.