Figure 2 (IMAGE) Science China Press Caption The volume transports ((a)-(e), unit: Sv) of the WBCs in the tropical Pacific and the linear trends (f). The red and blue lines represent the transport variations contributed by the temperature and salinity variations, respectively. The percentage of a total trend related to each mean volume transport over the six decades for each current is shown in panel (f) ("+" indicates increase). Positive values in zonal currents (NEC, NECC, NGCUC) represent transports to the east while positive values in meridional currents (KC, MC) represent transports to the north. The red, blue, and black lines represent the trends over the periods of 1955-2017, 1965-2017, and 1965-2004 while the solid dot line represents the uncertainty defined as the standard deviation of trend-removed time series. Credit ©Science China Press Usage Restrictions Use with credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.