文献类型：期刊文献

英文题名：Seasonal and Interannual Variability of EAPE in the South China Sea Derived from ECCO2 Data from 1997 to 2019

作者：Li, Qiang[1,2];Zhou, Lei[3];Xie, Lingling[1,2]

机构：[1]Guangdong Ocean Univ, Coll Ocean & Meteorol, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, Key Lab Climate Resources & Environm Shelf Sea &, Zhanjiang 524088, Peoples R China;[3]Shanghai Jiao Tong Univ, Sch Oceanog, Shanghai 200240, Peoples R China

年份：2021

卷号：13

期号：7

外文期刊名：WATER

收录：SCI-EXPANDED(收录号：WOS:000638937000001)、、EI(收录号：20211510207490)、Scopus(收录号：2-s2.0-85103903139)、WOS

基金：This research was funded by the IPOVAR Project (GASI-IPOVAI-01-02), the National Natural Science Foundation of China (41776034 and 411706025), and the Guangdong Province First-Class Discipline Plan (CYL231419012) and 231389002.

语种：英文

外文关键词：available gravitational potential energy; mesoscale eddy; South China Sea; ENSO; IOD

外文摘要：Using Estimating the Circulation and Climate of the Ocean (phase 2, ECCO2) reanalysis products from 1997 to 2019, this study analyzes the spatiotemporal features of the eddy available gravitational potential energy (EAPE) in the South China Sea (SCS). The results indicate that the EAPE accounts for 64% of the total APE in the SCS with the climatological mean. The 2D EAPE distribution images manifest show high-value regions which are generally consistent with the eddy distributions. One region is located around 21 degrees N and west of the Luzon Strait, the second around 17 degrees N and near Luzon Island, and the third off the Vietnam coast. In the region around 21 degrees N and 17 degrees N, both the seasonal variability and the interannual variability associated with the El Nino-Southern Oscillation (ENSO) are significant. Off the Vietnam coast, the EAPE is closely associated with coastal processes which heavily depend on the seasonal monsoon, the El Nino/La Nina events, and the Indian Ocean Dipole (IOD). The results provide new insights into SCS dynamics from the point of view of ocean energy sources.