Sea surface temperature oscillations in southern Okinawa Trough during last 2700 years from ODP Hole 195-1202B

DOI

Most of the temperature reconstructions for the past two millennia are based on proxy data from various sites on land. Here we present a bidecadal resolution record of sea surface temperature (SST) in Southern Okinawa Trough for the past ca. 2700 years by analyzing tetraether lipids of planktonic archaea in the ODP Hole 1202B, a site under the strong influence of Kuroshio Current and East Asian monsoon. The reconstructed SST anomalies generally coincided with previously reported late Holocene climate events, including the Roman Warm Period, Sui-Tang dynasty Warm Period, Medieval Warm Period, Current Warm Period, Dark Age Cold Period and Little Ice Age. However, the Medieval Warm Period usually thought to be a historical analogue for the Current Warm Period has a mean SST of 0.6-0.8°C lower than that of the Roman Warm Period and Sui-Tang dynasty Warm Period. Despite an increase since 1850 AD, the mean SST in the 20th century is still within the range of natural variability during the past 2700 years. A close correlation of SST in Southern Okinawa Trough with air temperature in East China, intensity of East Asian monsoon and the El-Niño Southern Oscillation index has been attributed to the fluctuations in solar output and oceanic-atmospheric circulation.

The chronology was established based on six 14C datings using planktonic foraminifera. Each sample was run in duplicate and the average standard deviation is 0.003, corresponding to 0.2 degree. The SST data in highlight is from the satellite derived mean annual SST (http://www.nsof.noaa.gov)

Identifier
DOI https://doi.org/10.1594/PANGAEA.803648
Related Identifier References https://doi.org/10.1029/2012GL052749
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.803648
Provenance
Creator Wu, Weichao ORCID logo; Tan, Wenbing ORCID logo; Zhou, Liping ORCID logo; Yang, Huan (ORCID: 0000-0002-3108-787X); Xu, Yunping ORCID logo
Publisher PANGAEA
Publication Year 2012
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 218 data points
Discipline Earth System Research
Spatial Coverage (122.500 LON, 24.804 LAT); East China Sea
Temporal Coverage Begin 2001-04-28T19:00:00Z
Temporal Coverage End 2001-04-29T04:45:00Z