The upper-ocean response to typhoons as measured at a moored acoustic Doppler current profiler  

作　　者：刘泽 侯一筠 谢强 胡珀 刘亚豪 

机构地区：[1]Key Laboratory of Ocean Circulation and Waves,Institute of Oceanology,Chinese Academy of Sciences [2]State Key Laboratory of Tropical Oceanography ( LTO ),South China Sea Institute of Oceanology,Chinese Academy of Sciences [3]Sanya Institute of Deep-Sea Science and Engineering,Chinese Academy of Sciences

出　　处：《Chinese Journal of Oceanology and Limnology》2015年第5期1256-1264,共9页中国海洋湖沼学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China(Nos.41306019,U1133001);the Open Grant of LTO SCSIO/CAS(No.LTO201305);the Sanya and CAS Cooperation Project(No.2013YD77);the NSFC Innovative Group(No.41421005);the NSFC-Shandong Joint Fund for Marine Science Research Centers(No.U1406401);the Pilot Strategic Project of CAS(No.XDA11020101);the Knowledge Innovation Engineering Frontier Project of SIDSSE(No.SIDSSE-201205);the Public Science and Technology Research Funds Projects of Ocean(No.201205010)

摘　　要：A moored acoustic Doppler current profiler(ADCP) data,satellite-derived sea surface wind data,and the chlorophyll-a concentration were used to examine the influence of typhoon events on the upper ocean in the central Luzon Strait. The data were collected between August 27 and October 6,2011. Large changes in ocean dynamics and marine life were recorded in the upper layers over the short term during the transit of each of the three violent typhoons that passed over the region during the study period. The geostrophic flow during the period of ADCP monitoring was comparable to the Ekman flow,recently shown to be prominent in the upper layer. Based on the influence of the three typhoon events that swept the Luzon Strait or traversed Luzon Island on their way to the South China Sea,we postulated a typhoon-induced upwelling around the ADCP and found that upward isothermal displacements reached 11.8–39.0 m,which was confirmed by the sea-level anomaly data recorded at the same time. This variability in the upper ocean may play an important role in biological activity,especially in offshore deep-sea regions.A moored acoustic Doppler current profiler （ADCP） data, satellite-derived sea surface wind data, and the chlorophyll-a concentration were used to examine the influence of typhoon events on the upper ocean in the central Luzon Strait. The data were collected between August 27 and October 6, 2011. Large changes in ocean dynamics and marine life were recorded in the upper layers over the short term during the transit of each of the three violent typhoons that passed over the region during the study period. The geostrophic flow during the period of ADCP monitoring was comparable to the Ekman flow, recently shown to be prominent in the upper layer. Based on the influence of the three typhoon events that swept the Luzon Strait or traversed Luzon Island on their way to the South China Sea, we postulated a typhoon-induced upwelling around the ADCP and found that upward isothermal displacements reached 11.8-39.0 m, which was confirmed by the sea-level anomaly data recorded at the same time. This variability in the upper ocean may play an important role in biological activity, especially in offshore deep-sea regions.

关 键 词：TYPHOONS moored ADCP data satellite-derived data Luzon Strait 

分 类 号：P714.2[天文地球—海洋科学]