08-26-2011, 05:16 PM | #1 |
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Ocean Topography
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08-26-2011, 05:33 PM | #2 |
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Wade's fixed HDS.
Sorry george, couldn't resist. Try mytopo.com . Last edited by kobra; 08-26-2011 at 05:45 PM. |
08-28-2011, 11:20 AM | #3 |
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http://southcoast.marinemap.org/marinemap/
turn on the substrate tab. http://www.pursuetheoutdoors.com/fis...6/grddas06.php try google earth 5 http://www.google.com/earth/explore/...explore-oceans looking for rockfish spots already?
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08-28-2011, 02:54 PM | #4 |
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I've been looking for this kind of info/imagery as well. Didn't come up with much. The bathymetry option from buskid's link shows some, but not much.
I once worked for a business that scanned the seafloor and collected that x/y/z (depth) data for the bay and other local areas and it is very expensive to do. Take a look here for stuff http://www.google.com/search?hl=en&r...w=1045&bih=528 First you need something to accurately collected depth information and time stamp that information. Then you need a heave compensator that measures the boat's pitch, yaw and roll and time stamp that information. Then you need a GPS device that has sub-meter accuracy and time stamp the location information. Now take all that info and process it - meaning the angle of the beam that goes 'straight' down needs to have geometrical calculations applied due to the yaw, pitch, roll of the boat to calculate a new position and depth. This is needed if you want detail. Please share if you find something with detail. |
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