File:Sediment echo-sounder hg.png
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This is a file from the Wikimedia Commons. The description on its description page there is shown below.
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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. |
| Date | |
| Source | Own work |
| Author |
Hannes Grobe, Alfred Wegener Institute for Polar and Marine Research
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| Permission (Reusing this file) |
Own work, share alike, attribution required (Creative Commons CC-BY-SA-2.5) |
| Other versions | Derivative works of this file: Presión hidrostática en el buceo profesional.jpg |
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 01:05, 23 June 2007 | 806 × 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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