The slanting property of semi-diurnal internal tide propagation in the Pacific Ocean at 1°45′S,156°E  

作　　者：BAO Xianwen ZHANG Yijun SUN Li DU Tao FANG Xinhua 

机构地区：[1]Physical Oceanography Laboratory, Ocean University of China, Qingdao 266003, China [2]National Marine Data ＆ Information Service, Tianjin 300171, China

出　　处：《Acta Oceanologica Sinica》2006年第4期143-145,共3页海洋学报（英文版）

基　　金：supported by the National Natural Science Foundation of China under contract Nos 49676275 and 49976002;the Microwave Imaging National Key Laboratory Foundation under contract No.51442020103JW1002.

摘　　要：By analyzing a data set collected using a moored instrument array and CTD during TOGA-COARE, it is found that there exist remarkable internal tides in the western equatorial Pacific Ocean around 1°45′S, 156°E, whose horizontal wavenumber （wavelength）, vertical wavenumber, h 156° orizontal propagation speed and vertical propagation speed are 3.3×10^-2 km^-1 （210 km）, - 1.6×10^-3m, 2.0 m/s and -3.8 cm/s, respectively, that is, the waveform propagates downwards slantingly. Moreover, the propagating direction rotates statistically clockwise as the depth increases and its cause is unclear.By analyzing a data set collected using a moored instrument array and CTD during TOGA-COARE, it is found that there exist remarkable internal tides in the western equatorial Pacific Ocean around 1°45′S, 156°E, whose horizontal wavenumber （wavelength）, vertical wavenumber, h 156° orizontal propagation speed and vertical propagation speed are 3.3×10^-2 km^-1 （210 km）, - 1.6×10^-3m, 2.0 m/s and -3.8 cm/s, respectively, that is, the waveform propagates downwards slantingly. Moreover, the propagating direction rotates statistically clockwise as the depth increases and its cause is unclear.

关 键 词：internal waves internal tides western equatorial Pacific Ocean TOGA-COARE 

分 类 号：P731.2[天文地球—海洋科学]