| LI Qun,XU Zhaoting,CHEN Xu,YU Jia. 2007. Numerical modeling on the interaction of internal solitary wave with slope-shelf and modal analysis. Acta Oceanologica Sinica, (6):139－149 |
| Numerical modeling on the interaction of internal solitary wave with slope-shelf and modal analysis |
| Numerical modeling on the interaction of internal solitary wave with slope-shelf and modal analysis |
| Received:May 11, 2007 Revised:August 07, 2007 |
| DOI： |
| Key words:internal solitary wave modal structure empirical orthogonal function |
| 中文关键词: internal solitary wave modal structure empirical orthogonal function |
| 基金项目: |
| Author Name | Affiliation | E-mail | | LI Qun | Physical Oceanography Laboratory and Institute of Physical Oceanography, Ocean University of China, Qingdao 266100, China | liqun_hu818@yahoo.com.cn | | XU Zhaoting | Physical Oceanography Laboratory and Institute of Physical Oceanography, Ocean University of China, Qingdao 266100, China | | | CHEN Xu | Physical Oceanography Laboratory and Institute of Physical Oceanography, Ocean University of China, Qingdao 266100, China | | | YU Jia | Physical Oceanography Laboratory and Institute of Physical Oceanography, Ocean University of China, Qingdao 266100, China | |
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| Abstract: |
| On the basis of a nonhydrostatic numerical model,the interaction of internal solitary wave with slope-shelf was studied.The breaking and polarity transformation were analyzed.A "kink" structure,due to shoaling topography and higher nonlinear effect,was found to be generated by the leading wave before breaking.Coherent vortex shedding behind the leading wave was presented.The evolution characteristics of the modal structure were analyzed based on the empirical orthogonal function method.The modal structure was complicated due to the effect of the variable topography,especially when breaking occurred.In the performed experiments,the contributions to the total variance from higher mode jumped from no more than 20% to over 40%. |
| 中文摘要: |
| On the basis of a nonhydrostatic numerical model,the interaction of internal solitary wave with slope-shelf was studied.The breaking and polarity transformation were analyzed.A "kink" structure,due to shoaling topography and higher nonlinear effect,was found to be generated by the leading wave before breaking.Coherent vortex shedding behind the leading wave was presented.The evolution characteristics of the modal structure were analyzed based on the empirical orthogonal function method.The modal structure was complicated due to the effect of the variable topography,especially when breaking occurred.In the performed experiments,the contributions to the total variance from higher mode jumped from no more than 20% to over 40%. |
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