| The observational sea surface temperature (SST) data during 1960 to 2017 of Chengshantou marine station has been detected and adjusted by the Penalized Maximal test (PMT) developed by the Climate Research Center of the Environment Ministry of Canada, and the detailed metadata archive. In this study, the homogenous surface air temperature (SAT) data from neighboring meteorological observation stations are used to construct the reference series by correlation coefficient weighted averaged method. The climate change characteristics of the Chengshantou SST were analyzed using the homogenized data. Results show that the annual average SST trend has changed significantly before and after the homogenization. The warming trend increased from 0.04 °C/10 years before revision to 0.15 °C/10 years. The warmest five years occurred mostly after 1980, that is, 1973, 1989, 2002, 2007 and 2017. SST generally showed a significant upward trend and significant inter-decadal fluctuations. From the 1960s to the end of the 1980s, it was a colder stage, and then began to warm up. It was a warmer period from the 1990s to the present. From 1960 to 2017, the jump point occurred in 1987, which is very consistent with the temperature characteristics of China's mainland. |
