Dynamic features of near-inertial oscillations in the Northwestern Pacific derived from mooring observations from^2015 to 2018  

作　　者：HU Shijian LIU Lingling GUAN Cong ZHANG Linlin WANG Jianing WANG Qingye MA Jie WANG Fujun JIA Fan FENG Junqiao LU Xi WANG Fan HU Dunxin 

机构地区：[1]CAS Key Laboratory of Ocean Circulation and Waves,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China [2]Center for Ocean Mega-Science,Chinese Academy of Sciences,Qingdao 266071,China [3]Pilot National Laboratory for Marine Science and Technology(Qingdao),Qingdao 266237,China [4]College of Marine Science,University of Chinese Academy of Sciences,Qingdao 266071,China

出　　处：《Journal of Oceanology and Limnology》2020年第4期1092-1107,共16页海洋湖沼学报（英文）

基　　金：the National Natural Science Foundation of China (Nos.41776018;91858101);the Key Research Program of Frontier Sciences;CAS (No.QYZDBSSW-SYS023);the CAS-CSIRO Project Fund(No.133244KYSB20190031);the Strategic Priority Research Program of Chinese Academy of Sciences(No.XDB01000000) to HU Shijian;the National Program on Global Change and Air-Sea Interaction (No.GASI-IPOVAI-04);the National Natural Science Foundation of China (No.41976009) to LIU Lingling

摘　　要：Near-inertial oscillation is an important physical process transferring surface wind energy into deep ocean.We investigated the near-inertial kinetic energy(NIKE)variability using acoustic Doppler current profiler measurements from a mooring array deployed in the tropical western Pacific Ocean along 130°E at 8.5°N,11°N,12.6°N,15°N,and 17.5°N from September 2015 to January 2018.Spatial features,decay timescales,and significant seasonal variability of the observed NIKE were described.At the mooring sites of 17.5°N,15°N,and 12.6°N,the NIKE peaks occurred in boreal autumn and the NIKE troughs were observed in boreal spring.By contrast,the NIKE at 11°N and 8.5°N showed peaks in winter and troughs in summer.Tropical cyclones and strong wind events played an important role in the emergence of high-NIKE events and explained the seasonality and latitudinal characteristics of the observed NIKE.

关 键 词：near-inertial kinetic energy western Pacific Ocean tropical cyclones mooring array seasonal variability 

分 类 号：P731.2[天文地球—海洋科学]