Spatial domain¶
Spatial domain represents 2D or 3D area definition in the dataset. Spatial domain definition is not updatable.
Supported 2D formats¶
Grid (raster) data¶
- Regular rectangular grid
- Not equidistant spatial axis
Mesh data¶
Mesh elements can be triangles or quadrilaterals
3D layered data (Vertical domain)¶
Verticality is supported using layers. It is not true 3D element geometry. Vertical layers are supported for all supported 2D formats.
Static vertical layers¶
The vertical layer is not changing over time and is defined by vertical transformation
Supported formats: - Equidistant layers - Not equidistant layers
Variable vertical layers¶
The layer positions are defined for each timestep as in combined sigma-z.
Each layer is stored separately - see Design and structure
Temporal domain¶
Both equidistant and non-equidistant temporal definition are supported
Items (variables)¶
Items (variables) definition:
Name
Type
- value datatype (float
,double
,...)Quantity
- defined by DHI.EUMItemId
(e.g.eumIWaterDepth
) andUnitId
(e.g.eumUmeter
)NoDataValue
- value for undefined, missing, or not available data value