NEW ZEALAND HYDROGRAPHIC AUTHORITY

TONGA – VAVA’U

INDEX:
SATELLITE DERIVED POSITIONS
CORAL HEADS
AIDS TO NAVIGATION
SATELLITE DERIVED BATHYMETRY


SATELLITE DERIVED POSITIONS
Positions obtained from satellite navigation systems referred to WGS 84 Datum can be plotted directly onto this chart. Caution must be exercised in the transfer of geographical positions to other charts not in terms of WGS 84 Datum.

CORAL HEADS
Due to the complexity of the coral bathymetry, depths shoaler than those charted may exist away from the main channels.

AIDS TO NAVIGATION
The aids to navigation shown on this chart are not to be relied upon.

SATELLITE DERIVED BATHYMETRY
Refer to M_QUAL object for details of depths derived mainly from satellite imagery. Uncharted dangers may exist. For further information see Admiralty publication ‘The Mariners Handbook’.


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