Evaluation of the ability of the Chinese stalagmite delta O-18 to record the variation in atmospheric circulation during the second half of the 20th century

doi:10.5194/cp-10-975-2014

	Evaluation of the ability of the Chinese stalagmite delta O-18 to record the variation in atmospheric circulation during the second half of the 20th century
	Nan, S.1; Tan, M.2; Zhao, P.1,3
刊名	CLIMATE OF THE PAST
	2014
卷号	10 期号:3 页码:975-985
ISSN号	1814-9324
DOI	10.5194/cp-10-975-2014
文献子类	Article
英文摘要	The Chinese stalagmite delta O-18 (delta O-18(cs)) has provoked debate worldwide over the past few years due to its lack of quantitative calibration, leading us to questions of whether delta O-18(cs) records a local or large-scale signal and whether delta O-18(cs) records the signal of a single remote water vapor source or multiple water vapor sources. In this study, we observe all of the delta O-18(cs) trends within the instrumental period to verify whether they possess a common trend, which could be used as a basis to determine whether the trends reflect the large-scale signal together or whether each trend reflects the local signal. The results show that most of the delta O-18(cs) experienced a linear increase from 1960 to 1994, which may indicate that the delta O-18(cs) could record a trend occurring in large-scale atmosphere circulations. We then quantitatively describe the proportion of water vapor transport (WVT) from different source regions. Using the NCEP/NCAR (National Centers for Environmental Protection/National Center for Atmospheric Research) reanalysis data from 1960 to 1994, the ratios of the intensities of three WVTs from the Bay of Bengal, the South China Sea, and the western North Pacific during the summer are calculated. We define R-SCS/BOB as the ratio of the WVT intensities from the South China Sea to those from the Bay of Bengal, R-WNP/BOB as the ratio of the WVT intensities from the western North Pacific to those from the Bay of Bengal, and R-WNP/SCS as the ratio of the WVT intensities from the western North Pacific to those from the South China Sea. The significant decadal increase occurs in the time series of R-WNP/BOB and R-WNP/SCS, most likely resulting from the strengthening of the WVT from the western North Pacific in the late 1970s due to the western Pacific subtropical high that extended westward. Further analysis indicates that when the equatorial central and eastern Pacific is in the El Nino phase, the sea surface temperature (SST) in the tropical Indian Ocean, the Bay of Bengal, and the South China Sea is high, and the SST at the middle latitudes in the North Pacific is low, then the R-WNP/BOB and R-WNP/SCS values tend to be high. After the late 1970s, the equatorial central and eastern Pacific have often been in the El Nino phase. Therefore, we confirm that the delta O-18(cs) primarily records the variation in atmospheric circulation during the second half of the 20th century.
WOS关键词	ASIAN SUMMER MONSOON ; SEA-SURFACE TEMPERATURE ; HIGH-RESOLUTION ; EAST-ASIA ; OXYGEN ISOTOPES ; CAVE RECORDS ; MODERN PRECIPITATION ; NORTHERN CHINA ; INDIAN MONSOON ; VARIABILITY
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences
语种	英语
出版者	COPERNICUS GESELLSCHAFT MBH
WOS记录号	WOS:000338761600004
资助机构	National Natural Science Foundation of China(41030103 ; National Natural Science Foundation of China(41030103 ; CAS Strategic Priority Research Program(XDA05080501) ; CAS Strategic Priority Research Program(XDA05080501) ; Basic Research Operation Foundation of the Chinese Academy of Meteorological Sciences(2013Z004) ; Basic Research Operation Foundation of the Chinese Academy of Meteorological Sciences(2013Z004) ; 41205057) ; 41205057) ; National Natural Science Foundation of China(41030103 ; National Natural Science Foundation of China(41030103 ; CAS Strategic Priority Research Program(XDA05080501) ; CAS Strategic Priority Research Program(XDA05080501) ; Basic Research Operation Foundation of the Chinese Academy of Meteorological Sciences(2013Z004) ; Basic Research Operation Foundation of the Chinese Academy of Meteorological Sciences(2013Z004) ; 41205057) ; 41205057) ; National Natural Science Foundation of China(41030103 ; National Natural Science Foundation of China(41030103 ; CAS Strategic Priority Research Program(XDA05080501) ; CAS Strategic Priority Research Program(XDA05080501) ; Basic Research Operation Foundation of the Chinese Academy of Meteorological Sciences(2013Z004) ; Basic Research Operation Foundation of the Chinese Academy of Meteorological Sciences(2013Z004) ; 41205057) ; 41205057) ; National Natural Science Foundation of China(41030103 ; National Natural Science Foundation of China(41030103 ; CAS Strategic Priority Research Program(XDA05080501) ; CAS Strategic Priority Research Program(XDA05080501) ; Basic Research Operation Foundation of the Chinese Academy of Meteorological Sciences(2013Z004) ; Basic Research Operation Foundation of the Chinese Academy of Meteorological Sciences(2013Z004) ; 41205057) ; 41205057)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/85744]
专题	中国科学院地质与地球物理研究所
通讯作者	Nan, S.
作者单位	1.Chinese Acad Meteorol Sci, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China 3.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Nan, S.,Tan, M.,Zhao, P.. Evaluation of the ability of the Chinese stalagmite delta O-18 to record the variation in atmospheric circulation during the second half of the 20th century[J]. CLIMATE OF THE PAST,2014,10(3):975-985.
APA	Nan, S.,Tan, M.,&Zhao, P..(2014).Evaluation of the ability of the Chinese stalagmite delta O-18 to record the variation in atmospheric circulation during the second half of the 20th century.CLIMATE OF THE PAST,10(3),975-985.
MLA	Nan, S.,et al."Evaluation of the ability of the Chinese stalagmite delta O-18 to record the variation in atmospheric circulation during the second half of the 20th century".CLIMATE OF THE PAST 10.3(2014):975-985.