Debye analysis applied to multiple reflections and attenuation of electromagnetic plane waves in a stratified sea substratum |
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Authors: | Luiz G Guimarães Edson ES Sampaio |
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Institution: | a Dept. Física Nuclear, Instituto de Física, Universidade Federal do Rio de Janeiro, CP 68528, 21945-970 Rio de Janeiro, Brazil b Centro de Pesquisa em Geofísica e Geologia da Universidade Federal da Bahia-CPGG/UFBA, Campus Universitário de Ondina, Instituto de Geociências, 40170-290 Salvador, Bahia, Brazil |
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Abstract: | Investigation of the wave problem related to multiple reflections and attenuation in marine controlled source electromagnetic is important for geophysical sounding of the sea substratum. An approach towards this goal is to study the scattering of obliquely incident plane waves by a four-layered earth: sea, sea bottom sedimentary rock, hydrocarbon reservoir, and lower sedimentary rock. The approach employs Debye theory in the frequency domain and assumes that each layer is a planar lossy medium. Explicit expressions show that the secondary waves related to the sea substratum layers multireflections carry useful information about their features. |
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Keywords: | Electromagnetic scattering Wave propagation Geometrical optics Waveguides Sea |
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