Shape/Geometry
Format:
Shapefile, or one of the following if this is not possible:
Geography Markup Language (GML)
Well Known Text (WKT)
GeoJson.
Note: AusSeabed will maintain geometries in a spatial format capable of transformation into multiple formats.
Shape specifications
Coordinate 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
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extents in a mapping portal and
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To allow the calculation of a total line kilometres
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contributed to the
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Grid.
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To allow the calculation of a total area (sq. km) of the
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gridded 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 |
MBES Survey Lines that contributed to the Gridded product | ||
AREA_KM2[1] | Float/Double | The Area of the polygon extent of the Gridded Multibeam Survey |
DATA_URL | Text | A downloadable link to the data |
METADATA_URL | Text | Link to Contributing Hub metadata catalogue |
Table 10. Shapefile Attribute Table
See ASB Procedures for Generating Polygons (still under development)[1] Calculated by projecting to the Australian Lambert Equal Area projection
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[1] Calculated by projecting to the Australian Lambert Equal Area projection