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Spatial distribution of area backscatter.

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posted on 2013-05-02, 01:51 authored by Imants G. Priede, Odd Aksel Bergstad, Peter I. Miller, Michael Vecchione, Andrey Gebruk, Tone Falkenhaug, David S. M. Billett, Jessica Craig, Andrew C. Dale, Mark A. Shields, Gavin H. Tilstone, Tracey T. Sutton, Andrew J. Gooday, Mark E. Inall, Daniel O. B. Jones, Victor Martinez-Vicente, Gui M. Menezes, Tomasz Niedzielski, Þorsteinn Sigurðsson, Nina Rothe, Antonina Rogacheva, Claudia H. S. Alt, Timothy Brand, Richard Abell, Andrew S. Brierley, Nicola J. Cousins, Deborah Crockard, A. Rus Hoelzel, Åge Høines, Tom B. Letessier, Jane F. Read, Tracy Shimmield, Martin J. Cox, John K. Galbraith, John D. M. Gordon, Tammy Horton, Francis Neat, Pascal Lorance

Area backscattering coefficient (m2 nautical mile−2), from the mesopelagic deep scattering layer. Recordings from multi-ship surveys using calibrated SIMRAD 38 kHz echosounders integrating down to 750 m depth (1000 m after 1999). Composite image of data from 1996–2009 during June–July.

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