Ocean Topography - Kayak Fishing Adventures on Big Water’s Edge

jorluivil · 08-26-2011, 04:16 PM

Looking for something that shows ocean depth/feet in detail?

kobra · 08-26-2011, 04:33 PM

Quote:

Originally Posted by jorluivil

Looking for something that shows ocean depth/feet in detail?

Wade's fixed HDS.

Sorry george, couldn't resist.
Try mytopo.com .

bus kid · 08-28-2011, 10:20 AM

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?

old_rookie · 08-28-2011, 01:54 PM

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.

08-26-2011, 04:16 PM	#1
jorluivil Senior Member Join Date: Apr 2010 Posts: 6,855	Ocean Topography Looking for something that shows ocean depth/feet in detail? __________________ www.facebook.com/Teamsewer

08-28-2011, 10:20 AM	#3
bus kid Team Keine Zugehörigkeit Join Date: Nov 2010 Location: Way out there Posts: 2,854	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? __________________ Não alimente os trolls------------Don't feed the trolls---------------インタネット荒らしを無視しろ

08-28-2011, 01:54 PM	#4
old_rookie Senior Member Join Date: Mar 2010 Location: Santee Posts: 904	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.