Shapes/Geometries
Shape/Geometry format
Format:
Shapefile, or one of the following if this is not possible:
Geography Markup Language (GML)
Well Known Text (WKT)
GeoJson.
AusSeabed will maintain geometries in a spatial format capable of transformation into multiple formats.
Shape specifications
Coordinate Reference System: EPSG:4326 (based on WGS84)
Geometry Type: Line & Polygon (Extent of the Survey from Port to Port)
Purpose/s:
To provide a visual extent of the multibeam survey extents in a mapping portal
To allow the calculation of a total line kilometres for the Survey
To allow the calculation of a total area (sq. km) of the multibeam survey extents
Attributes (Minimum Requirements as listed 4.2.4) – the ‘metadata_url’ is used to link to the more comprehensive attributes and descriptions.
Field Name | Format | Comments |
|---|---|---|
SURV_NAME | Text | Survey Name as supplied by the Contributor |
SURVEY ID | Text | The Survey ID assigned by the Collecting Organisation |
DATA_TYPE | Text | This may be a list of data types collected |
PRIN_INVES | Text | The Principal Investigator/key point of contact |
LICENCE | Text | e.g. CCBY 4.0 |
SURVEY _LINE_KM | Float/Double | The length of the Processed MBES Survey Lines |
AREA_KM2[1] | Float/Double | Area of the polygon extent of the Processed MBES Survey data |
METADATA_URL | Text | Link to Contributing Hub metadata catalogue |
See ASB Procedures for Generating Polygons (under development)
[1] Calculated by projecting to the Australian Lambert Equal Area projection
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