https://scholars.lib.ntu.edu.tw/handle/123456789/385634
Title: | Decoupling of the East Asian summer monsoon and Indian summer monsoon between 20 and 17ka | Authors: | Jiang, X. He, Y. CHUAN-CHOU SHEN Lee, S.-Y. Yang, B. Lin, K. Li, Z. |
Keywords: | Decoupling; East Asian summer monsoon; Indian summer monsoon; MIS 2; Stalagmite | Issue Date: | 2014 | Journal Volume: | 82 | Journal Issue: | 1 | Start page/Pages: | 146-153 | Source: | Quaternary Research (United States) | Abstract: | Marine Oxygen Isotope Stage (MIS) 2, with its profound environmental and climatic changes from before the last glacial maximum (LGM) to the last deglaciation, is an ideal period for understanding the evolution of the East Asian summer monsoon (EASM) and Indian summer monsoon (ISM), two Asian monsoon sub-systems. With 875 stable oxygen isotope ratios and 43 230Th dates from stalagmites in Sanxing Cave, southwestern China, we construct and interpret a new, replicated, Asian summer monsoon (ASM) record covering 30.9-9.7ka with decadal resolution. δ18O records from this site and other reported Chinese caves display similar long-term orbitally dominated trends and synchronous millennial-scale strong and weak monsoonal events associated with climate changes in high northern latitudes. Interestingly, Sanxing δ18O and Arabian Sea records show a weakening ISM from 22 to 17ka, while the Hulu and Qingtian records from East and Central China express a 3-ka intensifying EASM from 20 to 17ka. This decoupling between EASM and ISM may be due to different sensitivities of the two ASM sub-systems in response to internal feedback mechanisms associated with the complex geographical or land-ocean configurations. © 2014 University of Washington. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-84904063031&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/385634 |
DOI: | 10.1016/j.yqres.2014.05.001 | SDG/Keyword: | Atmospheric thermodynamics; Isotopes; Asian summer monsoons; Decoupling; East Asian summer monsoon; Indian summer monsoon; Last Glacial Maximum; Marine oxygen isotopes; Stable oxygen isotope ratio; Stalagmite; Climate change; climate variation; marine isotope stage; monsoon; oxygen isotope ratio; paleoclimate; Quaternary; stable isotope; stalagmite; China |
Appears in Collections: | 地質科學系 |
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