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

• Main Authors: Wu, Weichao, Tan, Wenbing, Zhou, Liping, Yang, Huan, Xu, Yunping
• Format: Dataset
• Language: English
• Published: PANGAEA 2012
• Subjects: Age; Sea surface temperature; Drilling/drill rig; Calculated from TEX86 Kim et al., 2010; Leg195; Joides Resolution; Ocean Drilling Program ODP; Planktonic foraminifera
• Online Access: https://dx.doi.org/10.1594/pangaea.803648; https://doi.pangaea.de/10.1594/PANGAEA.803648

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 ... : 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) ...