Coral delta O-18 records as an indicator of winter monsoon intensity in the South China Sea

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 中科院边缘海地质重点实验室

	Coral delta O-18 records as an indicator of winter monsoon intensity in the South China Sea
	Peng, ZC ; Chen, TG ; Nie, BF ; Head, MJ ; He, XX ; Zhou, WJ
刊名	QUATERNARY RESEARCH
	2003
卷号	59 期号:3 页码:285-292
关键词	coral delta O-18 values winter monsoon intensity interannual and interdecadal variability global warming
ISSN号	0033-5894
中文摘要	We have used correlative analysis between mean December-January-February winter wind velocities, measured at the Xisha Meteorological Observatory (16degrees50'N, 112degrees20'E) in the middle of the South China Sea, and mean 518 0 data for the corresponding month from Porites lutea coral, collected in Longwan waters (19degrees20'N, 110degrees39'E), to obtain a linear equation relating the two datasets. This winter wind velocity for the South China Sea (WMIIscs) can then be correlated to the coral delta(18)O by the equation WMIIscs = -1.213-1.351 delta(18)O (parts per thousand PDB), r = -0.60, n = 40, P = 0.01. From this, the calculated WMIIscs-delta18O series from 1944 to 1997 tends to decrease during the 1940s to the 1960s; it increases slightly during the 1970s and then decreases again in the 1980s and 1990s. The calculated decadal mean WMIIscs-delta18O series had a obvious decrease from 5.92 to 4.63 m/s during the period of 1944-1997. The calculated yearly mean WMIIscs-delta18O value is 5.58 m/s from 1944 to 1976 and this decreases to 4.85 m/s from 1977 to 1998. That is the opposite trend to the observed yearly mean SST variation. The yearly mean SST anomaly is -0.27degrees from 1943 to 1976 and this increases to +0.16degrees from 1977 to 1998. Spectral analysis used on a 54-year-long calculated WMIIscs-delta18O series produces spectral peaks at 2.4-7 yr, which can be closely correlated with the quasibiennial oscillation band (QBO band, 2-2.4 yr) and the El Nino southern oscillation band (ENSO band, 3-8 yr). Hence most of the variability of the winter monsoon intensity in the middle of the South China Sea is mainly constrained by changes in the thermal difference between the land and the adjoining sea area, perhaps due to global warming. (C) 2003 Elsevier Science (USA). All rights reserved.
学科主题	Geography, Physical; Geosciences, Multidisciplinary
收录类别	SCI
原文出处	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000183386500001
公开日期	2011-07-03
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/4768]
专题	南海海洋研究所_中科院边缘海地质重点实验室
推荐引用方式 GB/T 7714	Peng, ZC,Chen, TG,Nie, BF,et al. Coral delta O-18 records as an indicator of winter monsoon intensity in the South China Sea[J]. QUATERNARY RESEARCH,2003,59(3):285-292.
APA	Peng, ZC,Chen, TG,Nie, BF,Head, MJ,He, XX,&Zhou, WJ.(2003).Coral delta O-18 records as an indicator of winter monsoon intensity in the South China Sea.QUATERNARY RESEARCH,59(3),285-292.
MLA	Peng, ZC,et al."Coral delta O-18 records as an indicator of winter monsoon intensity in the South China Sea".QUATERNARY RESEARCH 59.3(2003):285-292.