File:Sediment echo-sounder hg.png

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Description Principle of sediment echo sounding. A narrow beam of high energy and low frequency (ab. 3.5 kHz) submitted by the research vessel to the sea floor is reflected by the various layers, providing information about hardness and structure of the sediments. Used by marine geologists as a pre-site survey to find suitable locations for sediment coring.
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Hannes Grobe, Alfred Wegener Institute for Polar and Marine Research

  • Citation: Hannes Grobe/AWI
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7 April 2000

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Date/TimeThumbnailDimensionsUserComment
current09:05, 23 June 2007Thumbnail for version as of 09:05, 23 June 2007806 × 1,154 (818 KB)Hgrobe{{Information |Description=to be defined |Source=own work |Date=2007-06-20 |Author=~~~~, Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany |Permission=Own work, share alike, attribution required (Creative Commons CC-BY-SA-2.5) |
19:29, 20 June 2007Thumbnail for version as of 19:29, 20 June 2007806 × 1,154 (818 KB)Hgrobe{{Information |Description=to be defined |Source=own work |Date=2007-06-20 |Author=~~~~, Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany |Permission=Own work, share alike, attribution required (Creative Commons CC-BY-SA-2.5) |
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