Hydrographic data, RADAR targets, ARPA vectors
Temperature, Density, Distance
Electronic Chart Display and Information System
Electric Chart Data and Information System
Electric Chart Display and Information System
Electronic Chart Data and Information System
Reduce appetite by decreasing nausea
Prevent impaired judgment due to motion-induced deliriousness
Assist in sleeping
Prevent loss of body moisture by vomiting
Distance Off Danger
Track Made Good
Chart data base
Electronic Nautical Chart
System display unit
Tactical display unit
AIS provides near real-time information regarding another vessel's speed over ground and heading regardless of visibility.
AIS will not provide information on another vessel if that vessel is indistinguishable in radar sea clutter.
AIS can be relied upon as the sole means to determine course changes due to other AIS equipped traffic.
AIS is designed to replace ARPA, maneuvering boards, and visual bearing as a means to ascertain the risk of collision.
US Coast Guard
International Maritime Organization
International Hydrographic Organization
Here's an interesting quiz for you.