TY - JOUR
T1 - The 1997–1998 El Niño event recorded by a stalagmite from central China
AU - Liu, Shuhua
AU - Peng, Xiaotao
AU - Chen, Qiong
AU - Qin, Shijiang
AU - Zhao, Jianxin
AU - Feng, Yuexing
AU - Luo, Shangde
AU - Zhou, Houyun
N1 - Funding Information:
This work is financially supported by the National Natural Science Foundation of China (Grant No. 41271212 ), the State Key Laboratory of Loess and Quaternary Geology (No. SKLLQG1431 ), the Innovation Project of Graduate School of South China Normal University (No. 2016lkxm24 ). We thanks Mr. Xiaoming Chen at Nanjing Institute of Geology and Palaeontology for his help in oxygen isotope analysis.
Publisher Copyright:
© 2017 Elsevier Ltd and INQUA
PY - 2018/9/10
Y1 - 2018/9/10
N2 - The El Niño-Southern Oscillation (ENSO) is one of the most important oceanic and atmospheric phenomena that cause global climate variations. In this study, we reported a stalagmite δ18O record from Shizi cave in central China, which clearly shows a prominently positive variation during 1997–1998 CE. This δ18O variation correlates well with a thinner annual layer that indicates a decrease in the growth rate, possibly due to a reduction of the rainfall amount near our study site caused by the 1997–1998 El Niño event. This hypothesis is supported by a comparison of the variations of the rainfall amount near the study site in terms of the southern oscillation index (SOI) for the last 60 years, which indicates that almost all of the El Niño events lead to a reduced rainfall amount. The results suggest that speleothems deposited in central China may potentially reflect El Niño activity.
AB - The El Niño-Southern Oscillation (ENSO) is one of the most important oceanic and atmospheric phenomena that cause global climate variations. In this study, we reported a stalagmite δ18O record from Shizi cave in central China, which clearly shows a prominently positive variation during 1997–1998 CE. This δ18O variation correlates well with a thinner annual layer that indicates a decrease in the growth rate, possibly due to a reduction of the rainfall amount near our study site caused by the 1997–1998 El Niño event. This hypothesis is supported by a comparison of the variations of the rainfall amount near the study site in terms of the southern oscillation index (SOI) for the last 60 years, which indicates that almost all of the El Niño events lead to a reduced rainfall amount. The results suggest that speleothems deposited in central China may potentially reflect El Niño activity.
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U2 - 10.1016/j.quaint.2017.11.026
DO - 10.1016/j.quaint.2017.11.026
M3 - Article
AN - SCOPUS:85034815939
SN - 1040-6182
VL - 487
SP - 71
EP - 77
JO - Quaternary International
JF - Quaternary International
ER -