Norwegian Chart Datum
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Norwegian Chart Datum Open
Datum Details [VALID]
Name: Norwegian Chart Datum
Code: 1301
Type: vertical
Usage:
Usage Details
Scope: Hydrography and nautical charting.
Extent:

Origin: LAT (sum of all harmonic constituents) with an added safety margin in areas where low water levels frequently deviate from LAT. The safety margin is 20 cm from Utsira to the Swedish border and 30 cm in the inner part of the Oslofjord (north of Drøbak).
Realisation Method: