4

I am looking for free Bathymetric contour data in shapefile format for depths between 0-200 meters for North America. I prefer contours at 10 meter increments, but will take whatever I can get.

I have found Bathymetric layers for 0 and 200 meters from http://www.naturalearthdata.com/downloads/10m-physical-vectors/. However, I need more detail within that range.

My questions are:

  • Where can I find freely available Bathymetric data between 0-200 meters for North America?
  • How did you find the data and what did you use to search for it?
  • There's a lot of bathymetric data to be found at NOAA National Geophysical Data Center but those data will likely be rasters, not shapefiles. You can produce contour lines from the rasters. – allen Jan 6 '13 at 20:15
4

Worldwide bathymetry data in .nc extension format can be obtained from here at the following resolution:

The GEBCO One Minute Grid — a global one arc-minute grid Released: 2003, updated: 2008 — largely based on the most recent set of bathymetric contours contained within the GEBCO Digital Atlas. The GEBCO_08 Grid — a global 30 arc-second grid

You can select data with bounds. The .nc file can be manipulate using a suitable gis program to generate depth contours which can then be exported as a shapefile.

3

Try these links: IHO and NOAA

Google bathymetric data download

Bathymetry shape files here http://gcoos.tamu.edu/products/topography/Shapefiles.html

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.