https://scholars.lib.ntu.edu.tw/handle/123456789/378446
標題: | Recent 121-year variability of western boundary upwelling in the northern South China Sea | 作者: | CHUAN-CHOU SHEN | 關鍵字: | coral; global warming; upwelling | 公開日期: | 2013 | 卷: | 40 | 期: | 12 | 起(迄)頁: | 3180-3183 | 來源出版物: | Geophysical Research Letters | 摘要: | Coastal upwelling is typically related to the eastern boundary upwelling system, whereas the powerful southwest Asian summer monsoon can also generate significant cold, nutrient-rich deep water in western coastal zones. Here we present a sea surface temperature record (A.D. 1876-1996) derived from coral Porites Sr/Ca for an upwelling zone in the northern South China Sea. The upwelling-induced sea surface temperature anomaly record reveals prominent multidecadal variability driven by Asian summer monsoon dynamics with an abrupt transition from warmer to colder conditions in 1930, and a return to warmer conditions after 1960. Previous studies suggest the expected increase in atmospheric CO2 for the coming decades may result in intensification in the eastern boundary upwelling system, which could enhance upwelling of CO2-rich deep water thus exacerbating the impact of acidification in these productive zones. In contrast, the weakening trend since 1961 in the upwelling time series from the northern South China Sea suggests moderate regional ocean acidification from upwelling thus a stress relief for marine life in this region. Key Points 121-yr monsoon-induced upwelling intensity record was inferred from coral The upwelling record shows an anomalous weakening trend since 1961 AD This trend may moderate regional ocean acidification ©2013. American Geophysical Union. All Rights Reserved. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-84880531788&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/378446 |
DOI: | 10.1002/grl.50381 | SDG/關鍵字: | Asian summer monsoons; coral; Multidecadal variability; Northern South China Sea; Ocean acidifications; Sea surface temperature (SST); Sea surface temperature anomalies; upwelling; Acidification; Atmospheric thermodynamics; Carbon dioxide; Global warming; Oceanography; Atmospheric temperature; carbon dioxide; coastal zone; coral; global warming; sea surface temperature; temperature anomaly; upwelling; western boundary current; Pacific Ocean; South China Sea; Anthozoa; Porites |
顯示於: | 地質科學系 |
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