Sea surface temperature and salinity reconstruction based on stable isotopes and Mg/Ca of planktonic foraminifera in the western Pacific Warm Pool during the last 155 ka
文献类型:CNKI期刊论文
作者 | Chou XH(仇晓华); Li TG(李铁刚)![]() |
发表日期 | 2014-01-15 |
出处 | Chinese Journal of Oceanology and Limnology
![]() |
关键词 | Mg/Ca sea surface temperature(SST) western Pacifi c Warm Pool(WPWP) ENSO monsoon |
英文摘要 | Changes in sea surface temperature(SST), seawater oxygen isotope(δ 18 O sw), and local salinity proxy(δ 18 O sw-ss) in the past 155 ka were studied using a sediment core(MD06-3052) from the northern edge of the western Pacifi c Warm Pool(WPWP), within the fl ow path of the bifurcation of the North Equatorial Current. Our records reveal a lead-lag relationship between paired Mg/Ca-SST and δ 18 O during Termination II and the last interglacial period. Similarity in SST between our site and the Antarctic temperature proxy and in CO 2 profi le showed a close connection between the WPWP and the Antarctic. Values of δ 18 O sw exhibited very similar variations to those of mean ocean δ 18 O sw, owing to the past sea-level changes on glacial-interglacial timescale. Calculated values of δ 18 O sw-ss refl ect a more saline condition during high local summer insolation(SI) periods. Such correspondence between δ 18 O sw-ss and local SI in the WPWP may refl ect complex interaction between ENSO and monsoon, which was stimulated by changes in solar irradiance and their infl uence on the local hydrologic cycle. This then caused a striking reorganization of atmospheric circulation over the WPWP. |
文献子类 | CNKI期刊论文 |
资助机构 | Supported by the National Natural Science Foundation of China(Nos.41230959,41076030,41106042,40906038,41206044) ; the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDA11030104) ; the Project of Global Change and Air-Sea Interaction |
卷 | v.32期:01页:189-202 |
语种 | 英文; |
分类号 | P736.2 |
ISSN号 | 0254-4059 |
源URL | [http://ir.qdio.ac.cn/handle/337002/190590] ![]() |
专题 | 中国科学院海洋研究所 |
作者单位 | 1.KeyLaboratoryofMarineGeologyandEnvironment,InstituteofOceanology,ChineseAcademyofSciences 2.UniversityofChineseAcademyofSciences |
推荐引用方式 GB/T 7714 | Chou XH,Li TG,Chang FM,et al. Sea surface temperature and salinity reconstruction based on stable isotopes and Mg/Ca of planktonic foraminifera in the western Pacific Warm Pool during the last 155 ka. 2014. |
入库方式: OAI收割
来源:海洋研究所
浏览0
下载0
收藏0
其他版本
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。