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Bull, JM, Quinn, Rory and Dix, JK (1998) Reflection coefficient calculation from marine high resolution seismic reflection (Chirp) data and application to an archaeological case study. MARINE GEOPHYSICAL RESEARCHES, 20 (1). pp. 1-11. [Journal article]
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Abstract
Chirp sub-bottom profilers produce high-resolution images of the near-surface An attribute of the sea-bed reflection in chirp data are fluctuations in polarity between adjacent traces. Two models are proposed and presented to explain this: the first incorporates changes in an acoustic impedance gradient at the sea bed; the second uses changes in the thickness of the uppermost sediment layer. Mixing of adjacent traces produces a consistent polarity for the sea-bed reflector. Reflection coefficients are calculated, using amplitude information derived from single-traces, and polarity information from trace mixing, with application to a marine archaeological case study. The reflection coefficient calculated for the top of a buried 18th century wooden wreck is -0.26.
| Item Type: | Journal article |
|---|---|
| Faculties and Schools: | Faculty of Life and Health Sciences |
| Research Institutes and Groups: | Environmental Sciences Research Institute Environmental Sciences Research Institute > Maritime Archaeology |
| ID Code: | 172 |
| Deposited By: | Dr Rory Quinn |
| Deposited On: | 03 Aug 2009 11:11 |
| Last Modified: | 15 Jun 2011 11:18 |
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- Reflection coefficient calculation from marine high resolution seismic reflection (Chirp) data and application to an archaeological case study. (deposited 03 Aug 2009 11:11) [Currently Displayed]
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