Three-dimensional dynamic sea surface modeling based on ocean wave spectrum

Zhimiao Chang; Fuxing Han; Zhangqing Sun; Zhenghui Gao; Lili Wang

doi:10.1007/s13131-021-1871-6

Volume 40 Issue 10

Oct. 2021

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Article Navigation > Acta Oceanologica Sinica > 2021 > 40(10): 38-48

Zhimiao Chang, Fuxing Han, Zhangqing Sun, Zhenghui Gao, Lili Wang. Three-dimensional dynamic sea surface modeling based on ocean wave spectrum[J]. Acta Oceanologica Sinica, 2021, 40(10): 38-48. doi: 10.1007/s13131-021-1871-6

Citation:

Zhimiao Chang, Fuxing Han, Zhangqing Sun, Zhenghui Gao, Lili Wang. Three-dimensional dynamic sea surface modeling based on ocean wave spectrum[J]. Acta Oceanologica Sinica, 2021, 40(10): 38-48. doi: 10.1007/s13131-021-1871-6

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Three-dimensional dynamic sea surface modeling based on ocean wave spectrum

doi: 10.1007/s13131-021-1871-6

1.
College of Geoexploration Science and Technology, Jilin University, Changchun 130026, China
2.
Geophysical Exploration and Research Institute of Jilin Oilfield, Songyuan 138006, China

Funds: The General Program of National Natural Science Foundation of China under contract No. 42074150; the National Key Research and Development Project under contract No. 2017YFC0601305.

More Information

Corresponding author: Email: sun_zhangq@jlu.edu.cn
Received Date: 2021-01-12
Accepted Date: 2021-06-15

Available Online: 2021-09-07

Publish Date: 2021-10-30

Abstract

Abstract

In conventional marine seismic exploration data processing, the sea surface is usually treated as a horizontal free boundary. However, the sea surface is affected by wind and waves and there often exists dynamic small-range fluctuations. These dynamic fluctuations will change the energy propagation path and affect the final imaging results. In theoretical research, different sea surface conditions need to be described, so it is necessary to study the modeling method of dynamic undulating sea surface. Starting from the commonly used sea surface mathematical simulation methods, this paper mainly studies the realization process of simple harmonic wave and Gerstner wave sea surface simulation methods based on ocean wave spectrum, and compares their advantages and disadvantages. Aiming at the shortcomings of the simple harmonic method and Gerstner method in calculational speed and sea surface simulation effect, a method based on wave equation and using dynamic boundary conditions for sea surface simulation is proposed. The calculational speed of this method is much faster than the commonly used simple harmonic method and Gerstner wave method. In addition, this paper also compares the new method with the more commonly used higher-order spectral methods to show the characteristics of the improved wave equation method.
- sea surface simulation,
- simple harmonic,
- Gerstner wave,
- wave equation,
- ocean wave spectrum,
- high-order spectral method

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References

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