Contour 5 Metre LiDAR
A linear feature class captured using LiDAR technology and representing an imaginary line on the ground of equal 5 metre elevation in relation to the Australian Height Datum over selected areas across the state of Queensland.
Attribute schema:
Contour 5 Metre LiDAR | |||||
A linear feature class captured using LiDAR technology and representing an imaginary line on the ground of equal 5 metre elevation in relation to the Australian Height Datum over selected areas across the state of Queensland. | |||||
Column Name | Nulls | Format | Size | Description | Constraints |
FEATURE_TYPE | No | Text | 50 |
Unique feature type that identifies the type of topographic feature. Options:
| dm_contour_ LiDAR |
ATTRIBUTE_SOURCE | No | Text | 100 |
The source LiDAR capture project used to define what the feature type is.
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ATTRIBUTE_DATE | No | Date |
| Date of the source LiDAR capture project used for attributing the feature. |
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FEATURE_SOURCE | No | Text | 100 | The source LiDAR capture project that the spatial location of the feature was obtained from. |
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FEATURE_DATE | No | Date |
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Date of the source LiDAR capture project that the location of the feature was obtained from.
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ELEVATION_M | Yes | Double |
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The elevation of the feature measured in metres in relation to the Australian Height Datum
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ELEVATION_SOURCE | Yes | Text | 100 | The source LiDAR capture project that the elevation of the feature was obtained from |
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ELEVATION_DATE | Yes | Date |
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Date of the source LiDAR capture project that the elevation of the feature was obtained from.
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ELEV_ACCURACY_M | No | Double |
| The vertical positional accuracy of the contour measured in metres (plus or minus e.g., +/- 0.3m) |
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CREATED_DATE* | No | Date |
| The date the feature was originally captured and first loaded to the database *internal use only |
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LAST_EDTED_DATE* | No | Date |
| Date of the last editing or revision to the feature *internal use only |
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UPPER_SCALE | No | Long |
| The upper scale for which the feature should be considered suitable for digital display | dm_upper_scale_ LiDAR |
TEXT_NOTE | Yes | Text | 50 |
For mapping purposes. Additional annotation that can be shown on a map.
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ADD_INFORMATION | Yes | Text | 255 | A comment field (additional information) |
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Feature Type definitions:
Intermediate Contour – Representing an imaginary line on the ground joining points of equal elevation above the Australian Height Datum, showing increasing and decreasing elevation values at 5 metre intervals.
Index Contour – Being every fifth “Intermediate Contour” – classified as Feature Type “Index Contour”. The elevation values are divisible by 25.
Upper scale:
1:25 000 – all data
Capture process:
INTERMEDIATE CONTOUR
Definition: Representing an imaginary line on the ground joining points of equal elevation above the Australian Height Datum, showing increasing and decreasing elevation values at 5 metre intervals.
Alternate Terms: Basic Contour
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INDEX CONTOUR
Definition: Being every fifth “Intermediate Contour” – classified as Feature Type “Index Contour”. The elevation values are divisible by 25.
Alternate Terms: Major Contour
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