| SHU XINGBEI,ZHAO JUNSHENG,WANG ZHENXIANG,SUN HONGLIANG,GU XUEJUN,GENG SHIJIANG.DETERMINATION OF THE DIRECTION AND VELOCITY OF INTERNAL TIDE WAVE BY MEANS OF MEASUREMENTS AT SINGLE STATION[J].Acta Oceanologica Sinica,1986,(2):173-182 |
| DETERMINATION OF THE DIRECTION AND VELOCITY OF INTERNAL TIDE WAVE BY MEANS OF MEASUREMENTS AT SINGLE STATION |
| DETERMINATION OF THE DIRECTION AND VELOCITY OF INTERNAL TIDE WAVE BY MEANS OF MEASUREMENTS AT SINGLE STATION |
| 投稿时间：1984-09-15 修订日期：1984-12-30 |
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| 作者 | 单位 | | 束星北 | First Institute of Oceanography, State Oceanic Administration, Qingdao | | 赵俊生 | First Institute of Oceanography, State Oceanic Administration, Qingdao | | 王祯祥 | First Institute of Oceanography, State Oceanic Administration, Qingdao | | 孙洪亮 | First Institute of Oceanography, State Oceanic Administration, Qingdao | | 顾学俊 | First Institute of Oceanography, State Oceanic Administration, Qingdao | | 耿世江 | First Institute of Oceanography, State Oceanic Administration, Qingdao |
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| 中文摘要: |
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,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. |
| 英文摘要: |
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,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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