文献类型：期刊文献

英文题名：Decadal change of sea surface temperature front intensity in the northern South China Sea: characteristics and mechanisms

作者：Zhuang, Shuqi[1];Long, Jingchao[1,2,3,4,5];Xie, Lingling[1,2,4,5];Feng, Baoxin[1,2,4,5];Chen, Kailin[6]

机构：[1]Guangdong Ocean Univ, Coll Ocean & Meteorol, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, Dept Educ Guangdong Prov, Key Lab Climate Resources & Environm Continental S, Zhanjiang 524088, Peoples R China;[3]Guangdong Ocean Univ, Weastern Guangdong Key Lab Marine Meteorol Disaste, Zhanjiang 524088, Peoples R China;[4]Guangdong Ocean Univ, Coll Ocean & Meteorol, Lab Coastal Ocean Variat & Disaster Predict, Zhanjiang 524088, Peoples R China;[5]Minist Nat Resources, Key Lab Space Ocean Remote Sensing & Applicat, Beijing 100081, Peoples R China;[6]Guangdong Hong Kong Macao Greater Bay Area Weather, Shenzhen 518038, Guangdong, Peoples R China

年份：2025

卷号：44

期号：12

起止页码：28

外文期刊名：ACTA OCEANOLOGICA SINICA

收录：SCI-EXPANDED(收录号：WOS:001714347500015)、、WOS

基金：The National Natural Science Foundation of China under contact No. 41905006; the Natural Science Foundation from Guangdong Basic and Applied Basic Research Foundation Meteorological Joint Fund under contact Nos 2024A1515510034 and 2025A1515510014; the Guangdong Provincial Observation and Research Station for Tropical Ocean Environment in Western Coastal Waters (GSTOEW) and the Key Construction Discipline of High-level Universities-Marine Science under contact Nos 231420003 and 080503032101; the Innovative Team Plan for Department of Education of Guangdong Province under contact Nos 2023KCXTD015 and 2024KCXTD042.

语种：英文

外文关键词：South China Sea; sea surface temperature front; long-term trend; La Ni & ntilde;a-like forcing

外文摘要：The sea surface temperature (SST) front over the northern South China Sea (NSCS) has significant impacts on regional weather, climate, and marine ecology. Based on high-resolution satellite data and reanalysis data, the long-term variation characteristics and possible mechanisms of the SST front intensity (SSTFI) over the NSCS in winter from 1986 to 2020 are analyzed. The results show that: (1) Based on empirical orthogonal decomposition analysis, the evolution features of SST front mainly include two types: position shift type and an intensity variation type. (2) The SSTFI is accelerating in recent two decades. From 1986 to 2003 (P1), the SSTFI changed relatively smoothly [0.2 degrees C /(km & centerdot;decade)], while from 2004 to 2020 (P2), there is a significant strengthening trend [1.2 degrees C/(km & centerdot;decade)]. (3) The horizontal advection related to the ocean current dominates the intensification of the SST front. An anomalous cyclonic circulation in upper ocean of the NSCS and the coastal current of South China strengthen the cold advection, resulting in cooling of the coastal waters of South China. (4) The latent heat flux dominates the sea surface heat loss and cooling process, but both latent and sensible heat flux are not conducive to the enhancement of the SSTFI. (5) The increase in SSTFI is largely associated with La Ni & ntilde;a-like pattern, which is conducive to enhance the East Asia winter monsoon, and strengthens the ocean front through air-sea interactions. This study provides a scientific reference for understanding the variations of the SSTFI.