Disclaimer: All the data have been carefully prepared.  Texas Sea Grant College Program, Texas A&M University, or Geoscience Earth & Marine Services, Inc., (GEMS) assumes no responsibility or liabilities for any reliance on the information presented.

Here's an interesting site with overlaying NOAA chart on Google Maps.

1. ➡ http://demo.geogarage.com/noaa/
   

BATHYMETRY

NGDC Bathymetry, Topography, and Relief Site

1. ➡ http://www.ngdc.noaa.gov/mgg/bathymetry/relief.html
   

ETOPO1 is global 1-arc minute gridded elevation and bathymetry

1. ➡ http://www.ngdc.noaa.gov/mgg/global/global.html
   

Coastal Relief Model is a 3 arc-second comprehensive view of the conterminous U.S. coastal zone.

1. ➡ http://www.ngdc.noaa.gov/mgg/coastal/crm.html
   

SRTM30_PLUS is a global bathymetry and elevation at 30 arc-second resolution

1. ➡ http://topex.ucsd.edu/WWW_html/srtm30_plus.html
   

SHORELINE

NOAA Shoreline Web site

1. ➡ http://shoreline.noaa.gov/
   

GSHHS is a Global Self-consistent, Hierarchical, High-resolution Shoreline database. The GSHHS shapefile version 1.3. files are available individually or as a single tar/gzip file.

1. ➡ http://www.ngdc.noaa.gov/mgg/shorelines/gshhs.html
   

NOAA Medium Resolution Digital Vector Shoreline. A high-quality, GIS-ready, general-use digital vector data set of the entire contiguous U.S.

1. ➡ http://coastalgeospatial.noaa.gov/shoreline.html
   

NOAA Shoreline Data Explorer.

1. ➡ http://www.ngs.noaa.gov/newsys_ims/shoreline/index.cfm