Ocean bathymetry

Does anyone have a good source for detailed ocean floor bathymetry (depth)?  I was browsing on my GPS and I just don't get the detail I'd like.  Found some online NOAA charts and they have fairly coarse resolution too.  I'm looking for various structure around Newport to depoe bay and perhaps even up near pacific city.  Would be nice to do some trip planning and see some reefs and such to stay away from.

This one's pretty slick.  Check out the PDF habitat maps.  Doesn't cover the entire coast, but does hit the popular areas like Depoe, Newport, PC, etc.

http://activetectonics.coas.oregonstate.edu/state_waters_download.htm

The Navionics Web App is a fun one for cruising around in too.

https://webapp.navionics.com/#boating@6&key=w%7CinGvhnsV

I like Navionics Web App as well. 

Once you zoom into the area you are interested in, just click on the little icon on the bottom left that looks like an upside down WIFI icon. This will give more detail.  Not perfect, but good as I can find.

The web app is very useful when you are on the water.

oh yeah, forgot about the Navionics website.  That is pretty good.  Thanks for the other links Clayman.

Thanks for the links, I just spent way too much time browsing. Need to get ready for tomorrow at PC. Ive always been interested in hitting the twin rocks at Rockaway.

Does anyone have a good source for detailed ocean floor bathymetry (depth)?  I was browsing on my GPS and I just don't get the detail I'd like.  Found some online NOAA charts and they have fairly coarse resolution too.  I'm looking for various structure around Newport to depoe bay and perhaps even up near pacific city.  Would be nice to do some trip planning and see some reefs and such to stay away from.

Barb, are these the NOAA charts you are talking about?  https://maps.ngdc.noaa.gov/viewers/bathymetry/   There is some high-resolution imagery but only in some areas.  Most of the Oregon coast is the regular, lower res stuff, including the Depoe Bay region and south.  There is some imagery for Lincoln City northwards, though, that may be useful.  Best viewed on as large a screen as possible (sorta OK on an iPad, on a phone forget it)

If you open that link, let the whole global map load, then UNcheck the box "Multibeam Bathymetric Surveys" to get rid of the clutter.  Then Check the boxes for "BAG Color Shaded Relief Imagery" & "BAG Footprints" (if you want the boundaries), and zoom into Oregon's coast to see where they've got the additional data layers.  I also check the "DEM Color Shaded Relief Imagery" box because I think it gives a better feel for bathymetry when the above-water topography's included.


Jim

Thanks Jim. That's some good data. 
These were the charts I was looking at http://www.charts.noaa.gov/OnLineViewer/18003.shtml 
Was also looking at some Google Ocean (kinda like Google Earth but for the water) - there's an incredible amount of imagery.

This one's pretty slick.  Check out the PDF habitat maps.  Doesn't cover the entire coast, but does hit the popular areas like Depoe, Newport, PC, etc.

http://activetectonics.coas.oregonstate.edu/state_waters_download.htm

The PDF's are nice, but I never have been able to find a freeware or other software that I can use to open the GIS data directly to model the 3d layer imagery. Any suggestions? Is there something specific you use that you might suggest?

In my book this conversation is quickly wandering into the "Restricted to non-public conversations only" territory.