Observations and Simulations of the Circulation and Mixing around the Andaman-Nicobar Submarine Ridge  

作　　者：LI Yi-Neng PENG Shi-Qiu ZENG Xue-Zhi 

机构地区：[1]State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy ofSeiences, Guangzhou 510301, China [2]Graduate University, of the Chinese Academy of Sciences Beijing 100049, China

出　　处：《Atmospheric and Oceanic Science Letters》2012年第4期319-323,共5页大气和海洋科学快报（英文版）

基　　金：supported by the Ministry of Science and Technology of the People's Republic of China(MOST)(Grant No.2011CB403504);the Knowledge Innovation Program of the Chinese Academy of Sciences(Grant Nos. KZCX2-EW-208 and KZCX2-YW-Q11-02);the National Natural Science Foundation of China(Grant No.41076009);100 Talent Program of the Chinese Academy of Sciences

摘　　要：Using data collected by an Acoustic Doppler Current Profiler （ADCP） on a research cruise in April 2010 in the eastern Indian Ocean, the vertical cun＇ent structures surrounding the Andaman-Nicobar Submarine Ridge （ANSR） are analyzed to investigate the hydrographic responses to the topography in this region. The results show that the topography of ANSR can induce internal waves around the submarine ridge that have a maximum current velocity of 1 m s 1 The spatial struc- ture of the turbulent kinetic energy （TKE） and shear in this region during 2010 is investigated using the high-resolution Princeton Ocean Model （POM） forced by the satellite-based Advanced Scatterometer （ASCAT） winds including the tide, The results show that the model successfully simulates the internal waves around the ANSR. Numerical experiments further indicate that both the topography and tide play an important role in the gen- eration of the internal waves in this region.Using data collected by an Acoustic Doppler Current Profiler(ADCP) on a research cruise in April 2010 in the eastern Indian Ocean,the vertical current structures surrounding the Andaman-Nicobar Submarine Ridge(ANSR) are analyzed to investigate the hydrographic responses to the topography in this region.The results show that the topography of ANSR can induce internal waves around the submarine ridge that have a maximum current velocity of 1 m s-1.The spatial structure of the turbulent kinetic energy(TKE) and shear in this region during 2010 is investigated using the high-resolution Princeton Ocean Model(POM) forced by the satellite-based Advanced Scatterometer(ASCAT) winds including the tide.The results show that the model successfully simulates the internal waves around the ANSR.Numerical experiments further indicate that both the topography and tide play an important role in the generation of the internal waves in this region.

关 键 词：Andaman Sea vertical mixing internal waves bottom topography effects 

分 类 号：P714[天文地球—海洋科学] TQ051.72[化学工程]