Anomalous biogeochemical conditions in the northern South China Sea during the El-Nino events between 1997 and 2003

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题名:	Anomalous biogeochemical conditions in the northern South China Sea during the El-Nino events between 1997 and 2003
作者:	Tseng,CM;Gong,GC;Wang,LW;Liu,KK;Yang,Y
贡献者:	水文科學研究所
关键词:	SYSTEM
日期:	2009
上传时间:	2010-07-08 09:29:32 (UTC+8)
出版者:	中央大學
摘要:	Anomalous biogeochemical conditions were observed at the SouthEast Asian Time-series Study (SEATS) station in the northern South China Sea (SCS) during the 1997-98 and 2002-03 El Nino events. The time-series records showed decreases of monthly mean sea surface chlorophylla (S-chl) (and integrated primary production, IPP) by 42% (and 42%) and 13% (and 10%), respectively, below the climatological mean in the winter months (DJF) of the two events. The negative anomalies in S-chl and IPP corresponded to elevated sea surface temperature by 1.2 degrees C and 0.4 degrees C, respectively, above the climatological mean, while the mean wind speed was reduced by about 20% and 11%, respectively. Statistical analysis demonstrated the reduction in S-chl and IPP during El Nino events was caused by the diminished vertical mixing and strengthened stratification. Regional anomalies in hydrographic and biological conditions in the northern SCS (15-21 degrees N and 112-119 degrees E) were consistent with those found at the SEATS site. Citation: Tseng, C.-M., G.-C. Gong, L.-W. Wang, K.-K. Liu, and Y. Yang (2009), Anomalous biogeochemical conditions in the northern South China Sea during the El-Nino events between 1997 and 2003, Geophys. Res. Lett., 36, L14611, doi: 10.1029/2009GL038252.
關聯:	GEOPHYSICAL RESEARCH LETTERS
显示于类别:	[水文與海洋科學研究所] 期刊論文

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