A comparison of the climates of the Medieval Climate Anomaly, Little Ice Age, and Current Warm Period reconstructed using coral records from the northern South China Sea

Deng, Wenfeng, Liu, Xi, Chen, Xuefei, Wei, Gangjian, Zeng, Ti, Xie, Luhua and Zhao, Jian-xin (2017) A comparison of the climates of the Medieval Climate Anomaly, Little Ice Age, and Current Warm Period reconstructed using coral records from the northern South China Sea. Journal of Geophysical Research: Oceans, 122 1: 264-275. doi:10.1002/2016JC012458


Author Deng, Wenfeng
Liu, Xi
Chen, Xuefei
Wei, Gangjian
Zeng, Ti
Xie, Luhua
Zhao, Jian-xin
Title A comparison of the climates of the Medieval Climate Anomaly, Little Ice Age, and Current Warm Period reconstructed using coral records from the northern South China Sea
Journal name Journal of Geophysical Research: Oceans   Check publisher's open access policy
ISSN 2169-9291
2169-9275
Publication date 2017-01-01
Sub-type Article (original research)
DOI 10.1002/2016JC012458
Open Access Status Not yet assessed
Volume 122
Issue 1
Start page 264
End page 275
Total pages 12
Place of publication Hoboken, NJ, United States
Publisher Wiley-Blackwell Publishing
Collection year 2018
Language eng
Abstract For the global oceans, the characteristics of high-resolution climate changes during the last millennium remain uncertain because of the limited availability of proxy data. This study reconstructs climate conditions using annually resolved coral records from the South China Sea (SCS) to provide new insights into climate change over the last millennium. The results indicate that the climate of the Medieval Climate Anomaly (MCA, AD 900–1300) was similar to that of the Current Warm Period (CWP, AD 1850-present), which contradicts previous studies. The similar warmth levels for the MCA and CWP have also been recorded in the Makassar Strait of Indonesia, which suggests that the MCA was not warmer than the CWP in the western Pacific and that this may not have been a globally uniform change. Hydrological conditions were drier/saltier during the MCA and similar to those of the CWP. The drier/saltier MCA and CWP in the western Pacific may be associated with the reduced precipitation caused by variations in the Pacific Walker Circulation. As for the Little Ice Age (LIA, AD 1550–1850), the results from this study, together with previous data from the Makassar Strait, indicate a cold and wet period compared with the CWP and the MCA in the western Pacific. The cold LIA period agrees with the timing of the Maunder sunspot minimum and is therefore associated with low solar activity. The fresher/wetter LIA in the western Pacific may have been caused by the synchronized retreat of both the East Asian Summer Monsoon and the Australian Monsoon.
Keyword Current Warm Period
Little Ice Age
Medieval Climate Anomaly
Sea surface salinity
Sea surface temperature
South China Sea
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
Centre for Microscopy and Microanalysis Publications
 
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