| DETERMINATION OF THE DIRECTION AND VELOCITY OF INTERNAL TIDE WAVE BY MEANS OF MEASUREMENTS AT SINGLE STATION |
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| 作者姓名： | 束星北 赵俊生 王祯祥 孙洪亮 顾学俊 耿世江 |
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| 作者单位： | First Institute of Oceanography, State Oceanic Administration, Qingdao;First Institute of Oceanography, State Oceanic Administration, Qingdao;First Institute of Oceanography, State Oceanic Administration, Qingdao;First Institute of Oceanography, State Oceanic Administration, Qingdao;First Institute of Oceanography, State Oceanic Administration, Qingdao;First Institute of Oceanography, State Oceanic Administration, Qingdao |
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| 摘 要： | In this paper, the method for determining the direction and velocity of internal tide wave is proposed. The main points are as follows: (1) starting with the continuity equation of incompressible fluid and taking the isotherm whose balance position is situated in the middle of the thermocline as the interface of two-layer ocean, one can get an equation of variations of average total current in the lower and upper layers; (2) WTide (Z) in the above-mentioned equation is expressed in first-order approximation; (3) the internal tide waves are treated as wave packets. Thus, one finds out a statistical relation, AΔu BΔv =ζ, which correlates the average shear effect caused by the internal tide wave with the isothermal fluctuation. The direction and velocity of the wave can be drawn from the formulae: (((1=Arctg (A/B), C1=1/(H0(A2 B2)~1/2).The calculated results agree, in the main, fairly well with two sets of observations at station L3.
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| 收稿时间： | 1984/9/15 0:00:00 |
| 修稿时间： | 1984/12/30 0:00:00 |
DETERMINATION OF THE DIRECTION AND VELOCITY OF INTERNAL TIDE WAVE BY MEANS OF MEASUREMENTS AT SINGLE STATION |
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| SHU XINGBEI,ZHAO JUNSHENG,WANG ZHENXIANG,SUN HONGLIANG,GU XUEJUN and GENG SHIJIANG.DETERMINATION OF THE DIRECTION AND VELOCITY OF INTERNAL TIDE WAVE BY MEANS OF MEASUREMENTS AT SINGLE STATION[J].Acta Oceanologica Sinica,1986,5(2):173-182. |
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| Authors: | SHU XINGBEI ZHAO JUNSHENG WANG ZHENXIANG SUN HONGLIANG GU XUEJUN and GENG SHIJIANG |
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| Institution: | First Institute of Oceanography, State Oceanic Administration, Qingdao |
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| Abstract: | In this paper,the method for determining the direction and velocity of internal tide wave is proposed.The main points are as follows:(1) starting with the continuity equation of incompressible fluid and taking the isotherm whose balance position is situated in the middle of the thermocline as the interface of two-layer ocean,one can get an equation of variations of average total current in the lower and upper layers; (2) WTide (Z) in the above-mentioned equation is expressed in first-order approximation; (3) the internal tide waves are treated as wave packets.Thus,one finds out a statistical relation,AΔū + BΔū=ζ,which correlates the average shear effect caused by the internal tide wave with the isothermal fluctuation.The direction and velocity of the wave can be drawn from the formulae:φ1=Arctg (A/B),C1=1/(H0·√A2+B2).
The calculated results agree,in the main,fairly well with two sets of observations at station L3. |
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