NEW ZEALAND HYDROGRAPHIC AUTHORITY

NZ514961 – NZ14906 – ANTARCTICA – ROSS SEA – CAPE ADARE AND CAPE HALLETT – RIDLEY BEACH

INDEX:
SATELLITE DERIVED POSITIONS
ANTARCTIC TREATY AREA
TIDAL LEVELS
SURVEYED AREA
MAGNETIC DECLINATION
CAUTION


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.

ANTARCTIC TREATY AREA
Mariners navigating in this area should be aware that regulations apply to such activity in the Antarctic Treaty Area. For more information contact the Antarctic Policy Unit at the Ministry of Foreign Affairs and Trade.

TIDAL LEVELS
Due to sparse tidal observations in this area, the tidal level information contained on this chart is approximate only.

SURVEYED AREA
A hydrographic survey has been conducted in this area.

MAGNETIC DECLINATION
Approaching the South Magnetic Pole the annual change to the magnetic variation is large (generally greater than 30’ E or W as applicable) and increase rapidly towards the pole.

CAUTION
Mariners should proceed with extreme caution as unidentified hazards may exist.


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