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First Images and Orientation of Internal Waves from a 3-d Seismic Oceanography Data Set : Volume 6, Issue 3 (20/10/2009)

By Blacic, T. M.

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Book Id: WPLBN0004021080
Format Type: PDF Article :
File Size: Pages 16
Reproduction Date: 2015

Title: First Images and Orientation of Internal Waves from a 3-d Seismic Oceanography Data Set : Volume 6, Issue 3 (20/10/2009)  
Author: Blacic, T. M.
Volume: Vol. 6, Issue 3
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Holbrook, W. S., & Blacic, T. M. (2009). First Images and Orientation of Internal Waves from a 3-d Seismic Oceanography Data Set : Volume 6, Issue 3 (20/10/2009). Retrieved from

Description: University of Wyoming, Geology and Geophysics Department, 1000 E. University Ave., Laramie, WY, 82071, USA. We present 3-D images of ocean finestructure from a unique industry-collected 3-D multichannel seismic dataset from the Gulf of Mexico that includes expendable bathythermograpgh casts for both swaths. 2-D processing reveals strong laterally continuous reflectors throughout the upper ~800 m as well as a few weaker but still distinct reflectors as deep as ~1100 m. Two bright reflections are traced across the 225-m-wide swath to produce reflector surface images that show the 3-D structure of internal waves. We show that the orientation of internal wave crests can be obtained by calculating the orientations of contours of reflector relief. Preliminary 3-D processing further illustrates the potential of 3-D seismic data in interpreting images of oceanic features such as internal wave strains. This work demonstrates the viability of imaging oceanic finestructure in 3-D and shows that, beyond simply providing a way to see what oceanic finestructure looks like, quantitative information such as the spatial orientation of features like internal waves and solitons can be obtained from 3-D seismic images. We expect complete, optimized 3-D processing to improve both the signal to noise ratio and spatial resolution of our images resulting in increased options for analysis and interpretation.

First images and orientation of internal waves from a 3-D seismic oceanography data set

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