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First Images and Orientation of Fine Structure from a 3-d Seismic Oceanography Data Set : Volume 6, Issue 2 (20/04/2010)

By Blacic, T. M.

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Book Id: WPLBN0004020451
Format Type: PDF Article :
File Size: Pages 9
Reproduction Date: 2015

Title: First Images and Orientation of Fine Structure from a 3-d Seismic Oceanography Data Set : Volume 6, Issue 2 (20/04/2010)  
Author: Blacic, T. M.
Volume: Vol. 6, Issue 2
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. (2010). First Images and Orientation of Fine Structure from a 3-d Seismic Oceanography Data Set : Volume 6, Issue 2 (20/04/2010). 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 fine structure from a unique industry-collected 3-D multichannel seismic dataset from the Gulf of Mexico that includes expendable bathythermograph casts for both swaths. 2-D processing reveals strong laterally continuous reflections throughout the upper ~800 m as well as a few weaker but still distinct reflections as deep as ~1100 m. We interpret the reflections to be caused by reversible fine structure from internal wave strains. Two bright reflections are traced across the 225-m-wide swath to produce reflection surface images that illustrate the 3-D nature of ocean fine structure. We show that the orientation of linear features in a reflection can be obtained by calculating the orientations of contours of reflection relief, or more robustly, by fitting a sinusoidal surface to the reflection. 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 fine structure in 3-D and shows that, beyond simply providing a way visualize oceanic fine structure, quantitative information such as the spatial orientation of features like fronts 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 fine structure from a 3-D seismic oceanography data set

Biescas, B., Sallarès, V., Pelegrí, J. L., Machín, F., Carbonell, R., Buffett, G., Dañobeitia, J. J., and Calahorrano, A.: Imaging meddy finestructure using multichannel seismic reflection data, Geophys. Res. Lett., 35, L11609, doi:10.1029/2008GL033971, 2008.; Cooper, C., Forristall, G. Z., and Joyce, T. M.: Velocity and hydrographic structure of two Gulf of Mexico warm-core rings, J. Geophys. Res., 95(C2), 1663–1679, 1990.; Egbert, G. D., Bennett, A. F., and Foreman, M. G. G.: TOPEX/POSEIDON tides estimated using a global inverse model, J. Geophys. Res., 99(C12), 24821–24852, 1994.; Farmer, D. and Armi, L.: The generation and trapping of solitary waves over topography, Science, 283(5399), 188–190, 1999.; Fortin, W. F. J. and Holbrook, W. S.: Sound speed requirements for optimal imaging of seismic oceanography data, Geophys. Res. Lett., 36, L00D01, doi:10.1029/2009GL038991, 2009.; Holbrook, W. S., Paramo, P., Pearse, S., and Schmitt, R. W.: Thermohaline fine structure in an oceanographic front from seismic reflection profiling, Science, 301, 821–824, 2003.; Ikeda, M. and Emery, W. J.: Satellite observations and modeling of meanders in the California Current system off Oregon and northern California, J. Phys. Oceanogr., 14(9), 1434–1450, 1984.; Klymak, J. M. and Moum, J. N.: Oceanic Isopycnal Slope Spectra: Part I – Internal Waves, J. Phys. Oceanogr., 37(5), 1215–1231, 2007.; Knauss, J. A.: Introduction to Physical Oceanography, Second Edition, Waveland Press, Inc., Long Grove, Illinois, USA, 1997.; Nakamura, Y., Noguchi, T., Tsuji, T., Itoh, S., Niino, H., and Matsuoka, T.: Simultaneous seismic reflection and physical oceanographic observations of oceanic fine structure in the Kuroshio extension front, Geophys. Res. Lett., 33, L23605, doi:10.01029/2006GL027437, 2006.; Nandi, P., Holbrook, W. S., Pearse, S., Paramo, P., and Schmitt, R. W.: Seismic reflection imaging of water mass boundaries in the Norwegian Sea, Geophys. Res. Lett., 31, L23311, doi:10.1029/2204GL021325, 2004.; Ruddick, B., Song, H., Dong, C., and Pinheiro, L.: Water Column Seismic Images as Maps of Temperature Gradient, Oceanography, 22(1), 192–205, 2009.; Rudnick, D. L. and Ferrari, R.: Compensation of horizontal temperature and salinity gradients in the ocean mixed layer, Science, 283, 526–529, 1999.; Sheriff, R. E. and Geldart, L. P.: Exploration Seismology, Cambridge University Press, Cambridge, United Kingdom, 1994.; Smith, W. H. F. and Sandwell, D. T.: Global seafloor topography from satellite altimetry and ship depth soundings, Science, 277, 1957–1962, 1997.; Rudnick, D. L., Boyd, T. J., Brainard, R. E., Carter, G. S., Egbert, G. D., Gregg, M. C., Holloway, P. E., Klymak, J. M., Kunze, E., Lee, C. M., Levine, M. D., Luther, D. S., Martin, J. P., Merrifield, M. A., Moum, J. N., Nash, J. D., Pinkel, R., Rainville, L., and Sanford, T. B.: From tides to mixing along the Hawaiian Ridge, Science, 301, 355–357, 2003.; Thacker, W. C.: Estimating salinity to complement observed temperature: 1. Gulf of Mexico, J. Marine Syst., 65, 224–248, 2007.; Thorpe, S. A.: The Turbulent Ocean, Cambridge University Press, Cambridge, United Kingdom, 2005.; Tsuji, T., Noguchi, T., Niino, H., Matsuoka, T., Nakamura, Y., Tokuyama, H., Kuramoto, S., and Bangs, N.: Two-dimensional mapping of fine structures in the Kuroshio Current using seismic reflection data, Geophys. Res. Lett., 32, L14609, doi:10.1029/2005GL023095, 2005.; Wessel, P. and Smith, W.: Free software helps maps and display data, EOS, 72(41), 441–446, 1991.; Widess, M.: How thin is a thin bed?, Geophysics, 38, 1176–1180, 1973.; Wiebe, P. H., Stanton, T. K., Benfield, M. C., Mountain, D. G., and Greene, C. H.: High-frequency acoustic volume backscattering in the Georges Bank coastal region and its interpretation using scattering models, J. Ocean. Eng., 22(3), 445–464, 1997.


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