| Chen Zishen. 1995. Analysis of the dynamic characteristics and stochastic simulation on variations of beach volumes. Acta Oceanologica Sinica, (3):393－403 |
| Analysis of the dynamic characteristics and stochastic simulation on variations of beach volumes |
| Analysis of the dynamic characteristics and stochastic simulation on variations of beach volumes |
| Received:March 02, 1995 Revised:March 03, 1995 |
| DOI： |
| Key words:Beach volume variations natural frequency damping ratio multi-dimensional spectral estimation stochastic simulation |
| 中文关键词: Beach volume variations natural frequency damping ratio multi-dimensional spectral estimation stochastic simulation |
| 基金项目:This project was supported by the National Natural Science Foundation of China. |
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| Abstract: |
| This paper analyzes the dynamic characteristics of the variations of the beach volumes for three level zones of the Yanjing Beach in the Shuidong Bay of the western Guangdong Province by using the methods of dynamic system analysis end the multi-dimensional spectral estimation.The results show that the variations of the beach volume are characterized by the multiband oscillations with a dominant semimonth period.Upwards the low tide level, the beach tends to be stable.The estimates of the partial mherences and the partial phases indicate that the variations of the beach volumes are mainly the results of the direct actions of the waves which are influenced by the tidal level changes and driven by the wind stress.The simulation results of the beach volume series for different beach height zones by threshold mixed regressive models indicate that the influence of the tide on the variations of the beach volumes is weakened and the direct actions of the wave energy and the wind stress are apparently enhanced with the increase of the beach height. |
| 中文摘要: |
| This paper analyzes the dynamic characteristics of the variations of the beach volumes for three level zones of the Yanjing Beach in the Shuidong Bay of the western Guangdong Province by using the methods of dynamic system analysis end the multi-dimensional spectral estimation.The results show that the variations of the beach volume are characterized by the multiband oscillations with a dominant semimonth period.Upwards the low tide level, the beach tends to be stable.The estimates of the partial mherences and the partial phases indicate that the variations of the beach volumes are mainly the results of the direct actions of the waves which are influenced by the tidal level changes and driven by the wind stress.The simulation results of the beach volume series for different beach height zones by threshold mixed regressive models indicate that the influence of the tide on the variations of the beach volumes is weakened and the direct actions of the wave energy and the wind stress are apparently enhanced with the increase of the beach height. |
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