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Microwave and Terahertz Em Wave Scattering From Oil-Water Complex Sea Surface at Small Incident Angles

Honglei Zheng 1 Yanmin Zhang 1 Yunhua Wang 1 Ali Khenchaf 2
2 Lab-STICC_ENSTAB_MOM_PIM
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance
Abstract : In this paper, the microwave (5GHz) and terahertz (1THz) EM (electromagnetic) wave scattering from sea surface covered with oil are studied in theory. The sea surface covered with oil can be regarded as a two-layered structure, the upper layer is oil and the lower layer is seawater. For microwave scattering, it is known that the oil covered on sea surface mainly influence the sea surface from two aspects: the damping effect for small scale wave and the reduction for friction velocity. In this work, the modification for Fresnel scattering coefficient due to the presentation of oil film is also taken into account. The numerical simulations show that the NRCS (normalized radar cross section) of microwave is not sensitive to the thickness of oil film. On the contrary, the NRCS of terahertz wave is more sensitive to the thickness of oil film, which provides us more information to probe oil slicks on sea surface with terahertz EM waves.
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https://hal.archives-ouvertes.fr/hal-02457679
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Submitted on : Tuesday, January 28, 2020 - 11:39:57 AM
Last modification on : Wednesday, June 24, 2020 - 4:19:56 PM

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Honglei Zheng, Yanmin Zhang, Yunhua Wang, Ali Khenchaf. Microwave and Terahertz Em Wave Scattering From Oil-Water Complex Sea Surface at Small Incident Angles. IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, Jul 2019, Yokohama, Japan. pp.2852-2855, ⟨10.1109/IGARSS.2019.8898696⟩. ⟨hal-02457679⟩

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