Danish Normal Null (DNN)
E669121
Danish Normal Null (DNN) is Denmark’s national vertical reference system used to define standard sea-level-based elevations across the country.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| Danish Normal Null | 0 |
Statements (28)
| Predicate | Object |
|---|---|
| instanceOf |
height reference system
ⓘ
vertical reference system ⓘ |
| appliesTo |
Danish islands
ⓘ
mainland Denmark ⓘ |
| basedOn | sea-level-based elevations ⓘ |
| category |
geodetic datum
ⓘ
vertical datum ⓘ |
| coordinateType | orthometric height ⓘ |
| country | Denmark ⓘ |
| defines | national height datum of Denmark ⓘ |
| dimension | 1D height ⓘ |
| hasAbbreviation | DNN NERFINISHED ⓘ |
| languageOfName | Danish ⓘ |
| referenceSurface | mean sea level ⓘ |
| relatedTo | geodetic reference systems in Denmark ⓘ |
| scope | national ⓘ |
| shortName | DNN ⓘ |
| unit | metre ⓘ |
| usedBy |
Danish authorities
ⓘ
engineers in Denmark ⓘ surveyors in Denmark ⓘ |
| usedFor |
construction
ⓘ
engineering ⓘ flood risk assessment ⓘ hydrology ⓘ mapping ⓘ |
| usedIn |
infrastructure projects in Denmark
ⓘ
topographic maps of Denmark ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.