Environmental forecasting

3.  Estimation of future environment conditions.
 Additional information.
 Consultants.
 Hind casting.
 Observation methods are not standard.

4. NAVIGATION AND SURVEY SYSTEM

5.  Require maps and Charts.
 Instrument used.
 EPS
 GPS
 Traditional instruments.
 Positioning transponders.

6. POSITIONING AND CONTROL

7.  Requirements.
 Sea state.
 Sea-floor properties
 Weather
 Anchor
 Mooring lines.

8.  Vessel propulsion system.
 Vessel characteristics.
 Tensions in mooring lines.
 Currents.
 Electronic equipment .

9. COMMUNICATION AND DATA
PROCESSING.
 Satellite.
 Fibre optics.