Electromagnetic Bistatic Scattering Features of Shallow Water Waves Over Upslope Submarine Topography
This article focuses on improving the understanding of the electromagnetic (EM) scattering from water waves modulated by shoaling effect arising from different upslope submarine topography in the nearshore zone. Simulation of EM bistatic scattering from water waves in the nearshore zone where the wa...
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| Format: | Article |
| Language: | English |
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IEEE
2021-01-01
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| Series: | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9543501/ |
| _version_ | 1818585279800279040 |
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| author | Ding Nie Min Zhang Pengbo Wei Mingyuan Man |
| author_facet | Ding Nie Min Zhang Pengbo Wei Mingyuan Man |
| author_sort | Ding Nie |
| collection | DOAJ |
| description | This article focuses on improving the understanding of the electromagnetic (EM) scattering from water waves modulated by shoaling effect arising from different upslope submarine topography in the nearshore zone. Simulation of EM bistatic scattering from water waves in the nearshore zone where the water depth becomes gradually shallower is presented. The shallow water waves with periodic sinusoidal type are simulated by the model that is based on Boussinesq approximation theory, which can accurately construct the detailed wave structure in the nearshore zone, and the analytical model-the second-order small slope approximation is applied to modeling the EM bistatic scattering from the shallow water waves. Comparisons of the bistatic scattering coefficient (BSC) between water waves corresponding to different submarine plane-upslope topography in the nearshore zone have shown that the angular position of harmonics of BSC will change as upslope varies: higher-order harmonics for plane-upslope cases would be far away from the specular peaks for flat topography case. Moreover, the wave height of the shallow water waves and nonlinear effect will greatly impact changing trend of the BSC. Simulations for TMA spectrum-based water waves also support the fact that the transfer of wave energy from low frequency to higher frequency wave components would be intensified in the shallow water zone with the upslope submarine topography. The results in this article indicate that shallow water waves would reflect some interesting scattering features that traditional deep-sea waves did not show, which will be helpful to the further quantitative investigation of scattering characteristics of nearshore waves. |
| first_indexed | 2024-12-16T08:34:33Z |
| format | Article |
| id | doaj.art-adf82533b54c450db2ab5924b743d753 |
| institution | Directory Open Access Journal |
| issn | 2151-1535 |
| language | English |
| last_indexed | 2024-12-16T08:34:33Z |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
| spelling | doaj.art-adf82533b54c450db2ab5924b743d7532022-12-21T22:37:48ZengIEEEIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing2151-15352021-01-01149873988310.1109/JSTARS.2021.31141789543501Electromagnetic Bistatic Scattering Features of Shallow Water Waves Over Upslope Submarine TopographyDing Nie0https://orcid.org/0000-0003-3920-0352Min Zhang1https://orcid.org/0000-0001-9992-0007Pengbo Wei2Mingyuan Man3School of Physics and Optoelectronic Engineering, Xidian University, Xi'an, ChinaSchool of Physics and Optoelectronic Engineering, Xidian University, Xi'an, ChinaSchool of Physics and Optoelectronic Engineering, Xidian University, Xi'an, ChinaChina Academy of Space Technology, Xi'an, ChinaThis article focuses on improving the understanding of the electromagnetic (EM) scattering from water waves modulated by shoaling effect arising from different upslope submarine topography in the nearshore zone. Simulation of EM bistatic scattering from water waves in the nearshore zone where the water depth becomes gradually shallower is presented. The shallow water waves with periodic sinusoidal type are simulated by the model that is based on Boussinesq approximation theory, which can accurately construct the detailed wave structure in the nearshore zone, and the analytical model-the second-order small slope approximation is applied to modeling the EM bistatic scattering from the shallow water waves. Comparisons of the bistatic scattering coefficient (BSC) between water waves corresponding to different submarine plane-upslope topography in the nearshore zone have shown that the angular position of harmonics of BSC will change as upslope varies: higher-order harmonics for plane-upslope cases would be far away from the specular peaks for flat topography case. Moreover, the wave height of the shallow water waves and nonlinear effect will greatly impact changing trend of the BSC. Simulations for TMA spectrum-based water waves also support the fact that the transfer of wave energy from low frequency to higher frequency wave components would be intensified in the shallow water zone with the upslope submarine topography. The results in this article indicate that shallow water waves would reflect some interesting scattering features that traditional deep-sea waves did not show, which will be helpful to the further quantitative investigation of scattering characteristics of nearshore waves.https://ieeexplore.ieee.org/document/9543501/Boussinesq modelelectromagnetic scatteringnearshore zoneshallow water wavewater depth |
| spellingShingle | Ding Nie Min Zhang Pengbo Wei Mingyuan Man Electromagnetic Bistatic Scattering Features of Shallow Water Waves Over Upslope Submarine Topography IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing Boussinesq model electromagnetic scattering nearshore zone shallow water wave water depth |
| title | Electromagnetic Bistatic Scattering Features of Shallow Water Waves Over Upslope Submarine Topography |
| title_full | Electromagnetic Bistatic Scattering Features of Shallow Water Waves Over Upslope Submarine Topography |
| title_fullStr | Electromagnetic Bistatic Scattering Features of Shallow Water Waves Over Upslope Submarine Topography |
| title_full_unstemmed | Electromagnetic Bistatic Scattering Features of Shallow Water Waves Over Upslope Submarine Topography |
| title_short | Electromagnetic Bistatic Scattering Features of Shallow Water Waves Over Upslope Submarine Topography |
| title_sort | electromagnetic bistatic scattering features of shallow water waves over upslope submarine topography |
| topic | Boussinesq model electromagnetic scattering nearshore zone shallow water wave water depth |
| url | https://ieeexplore.ieee.org/document/9543501/ |
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