Datasættet er område polygoner, der beskriver områder hvor der er foretaget en opmåling af havdybden, som Geodatastyrelsen stiller til rådighed.

Opmålingspolygonerne indeholder beskriver forskellige typer af opmålinger:

Singlebeam : dybdedata opmålt ved hjælp af Singlebeam echosounder

Multibeam : dybdedata opmålt ved hjælp af Multibeam echosounder

Digitizes : dybdedata hvor kilden er digitaliseret fra analoge papirkort over dybdedata eller andre historiske dybdedata. De originale data er blevet indsamlet ved at anvende forskellige teknologier f.eks. lodlinier, ekkolod.

Tabellen for vektor data :

[Field Name] : "Field Description"

[SurveyID] : A unique identifier associated to each dataset.Please use the “SurveyID” field when interacting with the Danish Geodata Agency.

[EndDate[ : The end date of data collection (formatted as YYYYMMDD with YYYY for year, MM for month, and DD for day).

[HorizontalDatumProjection] : The EPSG code and the name of the horizontal datum and projection.

[VerticalDatum] : The name of the vertical datum.

[IHOCategory[ : A quality indicator of the dataset based on the IHO S-44 standard (i.e., IHO order).

[SurveyType] : The type of dataset:

“Singlebeam”: The source depths were collected using singlebeam echosounder.

“Multibeam”: The source depths were collected using a multibeam echosounder.

“Digitized”: The source depths were digitized from survey fair sheets or other historical sources. The original depth data may have been collected using various technologies (e.g., leadline, echosounder).

[AreaKm2] : The area of the dataset polygon in square kilometers, using the LAEA Europe projection (EPSG:3035).