c:/dev/skygeo/src/iso2stac/stac_output_dynamic/catalog.json
root
application/json
c:/dev/skygeo/src/iso2stac/stac_output_dynamic/collection-norwegian_mapping_authority/collection.json
collection
application/json
c:/dev/skygeo/src/iso2stac/stac_output_dynamic/collection-norwegian_mapping_authority/ff1d42d4-907d-44bc-b17c-809dc9fb5a63/ff1d42d4-907d-44bc-b17c-809dc9fb5a63.json
self
application/json
c:/dev/skygeo/src/iso2stac/stac_output_dynamic/collection-norwegian_mapping_authority/collection.json
parent
application/json
separasjonsmodell
Current version: 2025a. New versions will be published as the underlying dataset is
improved. The model gives the vertical separation between Mean high water and the
ellipsoid (EUREF89) on a regular geographic grid (0.005° × 0.01°), covering the coastal
region of mainland Norway.

MHW, defined as the average height of all high waters over a period of 19 years,
is in the underlying dataset estimated by the amplitude of the M2 tidal component,
obtained from harmonic analysis of time series of water level.

The model is a combination of the model for Mean Sea Level above the ellipsoid, and a model
for the height of MHW above Mean Sea Level.

An estimate of the standard deviation of the model is included as a separate band in the GeoTIFF file. When selecting the bin-format, one gets a separate file with the gridded standard deviation.
Mean high water above ellipsoid