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Vertical datum

vertical datum is used to specify the datum to which both heights (vertical datum) and soundings (sounding datum) are referred. 

Updated: 31/05/2023
Status: Valid
Showing 1 - 8 of 8 hits

Codelist

HAT - the highest tidal level which can be predicted to occur under average meteorological conditions and under any combination of astronomical conditions (IHO Dictionary, S-32, 5th Edition, 2244).
høyesteAstronomiskeTidevann

Valid

LAT - the lowest tide level which can be predicted to occur under average meterological conditions and under any combination of astronomical conditions. (IHO Dictionary, S-32, 5th Edition, 2936).
lavesteAstronomiskeTidevann

Valid

LLW - the average height of the lower low waters at a place over a 19-year period
middelHøydeAvLavesteLavvann

Valid

MHW - the average height of all high waters at a place over a 19-year period
middelHøyvann

Valid

HWS - the average height of the high waters of spring tides. Also called spring high water
middelHøyvannVedSpring

Valid

MLW - the average height of all low waters at a place over a 19-year period
middelLavvann

Valid

MLWS - the average height of the low waters of spring tides. Also called spring low water
middelLavvannVedSpring

Valid

MSL - the average height of the surface of the sea at a tide station for all stages of the tide over a 19-year period, usually determined from hourly height readings measured from a fixed predetermined reference level
middelvannMiddelvannsnivå

Valid

Showing 1 - 8 of 8 hits