Fig. 3
From: δ 18Osw estimate for Globigerinoides ruber from core-top sediments in the East China Sea
Potential temperature and salinity (T–S) plot in the ECS. The T–S diagram shows four distinct water masses in early July: the Kuroshio surface water, Kuroshio subsurface water, YSCCW, and CDW. The color in circles indicates the δ 18Osw value of the seawater. The Kuroshio surface and subsurface waters are characterized by higher δ 18Osw values, whereas the CDW is characterized by relatively low δ 18Osw values. Surface water properties in the northern part of the Okinawa Trough can be explained by isopycnal mixing with the CDW and Kuroshio surface water. The potential density curves (σ θ = 19–27) are also shown. The T–S diagram was made using Ocean Data View (Schlitzer R, Ocean Data View, http://odv.awi.de, 2014)