Marine Transportation Resources

This system will allow you to obtain tidal predictions computed by CO-OPS for more than 3000 water level stations. The publication of full daily predictions is limited to fewer stations. These stations with full daily predictions are referred to as "reference stations". The remaining stations are referred to as "subordinate stations".

A map illustrating regional trends in sea level, with arrows representing the direction and magnitude of change.

Provided by the International Chamber of Commerce (ICC).

Provides real-time information about ship movements and ports, mainly across the coast-lines of Europe and North America using data collected by the Automatic Identification System (AIS). Vessel positions may be up to one hour old or incomplete. Data is provided for informational reasons only and is not related by any means to the safety of navigation.

Contains information about 2 million physical and cultural geographic features in the United States. Database can be searched by feature and will list the U.S.G.S. 7.5 minute topographic maps on which the feature is shown.

The Perry-Castañeda Library Map Collection at the University of Texas Libraries is a general collection of more than 250,000 maps covering all areas of the world.