| FAN Zhisong. 2005. Simulation model of SAR remote sensing of turbulent wake of semi-elliptical submerged body. Acta Oceanologica Sinica, (5):50－60 |
| Simulation model of SAR remote sensing of turbulent wake of semi-elliptical submerged body |
| Simulation model of SAR remote sensing of turbulent wake of semi-elliptical submerged body |
| Received:April 11, 2005 Revised:July 08, 2005 |
| DOI： |
| Key words:semi-elliptical submerged body SAR remote sensing wake turbulence lee waves |
| 中文关键词: semi-elliptical submerged body SAR remote sensing wake turbulence lee waves |
| 基金项目: |
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| Abstract: |
| In terms of the 2-dimensional hydrodynamic simplified model of a semi-elliptical submerged body moving horizontally at high speed, by using the full-spectrum model of SAR(synthetic aperture radar) remote sensing and taking the effect of oceanic interior turbulence on surface gravity capillary waves into account, applying the k-ε model of turbulence with internal wave mixing, and adopting the Nasmyth spectrum of oceanic turbulence, the 2-dimensional simulation model of SAR remote sensing of this semi-elliptical submerged body is built up.Simulation by using this model at X band and C band is made in the northeastern South China Sea (21°00'N, 119°00'E).Satisfactory results of the delay time and delay distance of turbulent surface wake of this semi-elliptical submerged body, as well as the minimum submerged depth at which this submerged body which cannot be discovered by SAR, are obtained through simulation. |
| 中文摘要: |
| In terms of the 2-dimensional hydrodynamic simplified model of a semi-elliptical submerged body moving horizontally at high speed, by using the full-spectrum model of SAR(synthetic aperture radar) remote sensing and taking the effect of oceanic interior turbulence on surface gravity capillary waves into account, applying the k-ε model of turbulence with internal wave mixing, and adopting the Nasmyth spectrum of oceanic turbulence, the 2-dimensional simulation model of SAR remote sensing of this semi-elliptical submerged body is built up.Simulation by using this model at X band and C band is made in the northeastern South China Sea (21°00'N, 119°00'E).Satisfactory results of the delay time and delay distance of turbulent surface wake of this semi-elliptical submerged body, as well as the minimum submerged depth at which this submerged body which cannot be discovered by SAR, are obtained through simulation. |
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