Elevation

Measures the vertical distances and the shape of the Earth and its features in relation to a reference surface (datum)

Contour 1 Metre LiDAR

A linear feature class captured using LiDAR technology and representing an imaginary line on the ground with a regular 1 metre elevation in relation to the Australian Height Datum over selected areas across the state of Queensland.

Attribute Schema:

Contour 1 Metre LiDAR
A linear feature class captured using LiDAR technology and representing an imaginary line on the ground with a regular 1 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: Index Contour Intermediate Contour	dm_contour_ LiDAR
ATTRIBUTE_SOURCE	No	Text	100	The source LiDAR capture project used to define what the feature type is.
ATTRIBUTE_DATE	No	Date		Date of the source LiDAR capture project used for attributing the feature.
FEATURE_SOURCE	No	Text	100	The source LiDAR capture project that the spatial location of the feature was obtained from.
FEATURE_DATE	No	Date		Date of the source LiDAR capture project that the location of the feature was obtained from.
ELEVATION_M	Yes	Double		The elevation of the feature measured in metres in relation to the Australian Height Datum
ELEVATION_SOURCE	Yes	Text	100	The source LiDAR capture project that the elevation of the feature was obtained from
ELEVATION_DATE	Yes	Date		Date of the source LiDAR capture project that the elevation of the feature was obtained from.
ELEV_ACCURACY_M	No	Double		The vertical positional accuracy of the contour measured in metres (plus or minus e.g., +/- 0.3m)
CREATED_DATE*	No	Date		The date the feature was originally captured and first loaded to the database *internal use only
LAST_EDTED_DATE*	No	Date		Date of the last editing or revision to the feature *internal use only
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.
ADD_INFORMATION	Yes	Text	255	A comment field (additional information)

Feature Type definitions:

Intermediate Contour – An imaginary line on the ground joining points of equal elevation above the Australian Height Datum, showing increasing and decreasing elevation values at 1 metre intervals.
Index Contour – Being every fifth “Intermediate Contour” - classified as Feature Type “Index Contour”. The elevation values are divisible by 5.

Upper scale:

Upper_scale:

1:10 000 – all Intermediate Contours
1:25 000 – all Index Contours

Capture Process:

INTERMEDIATE CONTOUR

Definition: An imaginary line on the ground joining points of equal elevation above the Australian Height Datum, showing increasing and decreasing elevation values at 1 metre intervals.

Alternate Terms: Basic Contour

Capture as a 2D polyline
Capture with a contour interval of 1 metre
Auto-generate from a digital terrain model captured using LiDAR technology.

INDEX CONTOUR

Definition: Being every fifth “Intermediate Contour” - classified as Feature Type “Index Contour”. The elevation values are divisible by 5.

Alternate Terms: Major Contour

Capture as a 2D polyline
Capture with a contour interval of 1 metre
Auto-generate from a digital terrain model captured using LiDAR technology.
Being every fifth “Intermediate Contour” - classified as Feature Type “Index Contour”. The elevation values are divisible by 5.

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: Index Contour Intermediate Contour	dm_contour_ LiDAR
ATTRIBUTE_SOURCE	No	Text	100	The source LiDAR capture project used to define what the feature type is.
ATTRIBUTE_DATE	No	Date		Date of the source LiDAR capture project used for attributing the feature.
FEATURE_SOURCE	No	Text	100	The source LiDAR capture project that the spatial location of the feature was obtained from.
FEATURE_DATE	No	Date		Date of the source LiDAR capture project that the location of the feature was obtained from.
ELEVATION_M	Yes	Double		The elevation of the feature measured in metres in relation to the Australian Height Datum
ELEVATION_SOURCE	Yes	Text	100	The source LiDAR capture project that the elevation of the feature was obtained from
ELEVATION_DATE	Yes	Date		Date of the source LiDAR capture project that the elevation of the feature was obtained from.
ELEV_ACCURACY_M	No	Double		The vertical positional accuracy of the contour measured in metres (plus or minus e.g., +/- 0.3m)
CREATED_DATE*	No	Date		The date the feature was originally captured and first loaded to the database *internal use only
LAST_EDTED_DATE*	No	Date		Date of the last editing or revision to the feature *internal use only
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.
ADD_INFORMATION	Yes	Text	255	A comment field (additional information)

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

Capture as a 2D polyline
Capture with a contour interval of 5 metre
Auto-generate from a digital terrain model captured using LiDAR technology.

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

Capture as a 2D polyline
Capture with a contour interval of 5 metre
Auto-generate from a digital terrain model captured using LiDAR technology.
Being every fifth “Intermediate Contour” – classified as Feature Type “Index Contour”. The elevation values are divisible by 25

Contour 5 Metre Photogrammetry

A linear feature class captured using photogrammetric techniques and representing an imaginary line on the ground jo with a regular 5 metre elevation in relation to the Australian Height Datum over selected areas across the state of Queensland.

Historic dataset and not actively updated.

Attribute Schema:

Contour 5 Metre Photogrammetry
A linear feature class captured using photogrammetric techniques and representing an imaginary line on the ground jo with a regular 5 metre elevation in relation to the Australian Height Datum over selected areas across the state of Queensland. Historic dataset and not actively updated.
Column Name	Nulls	Format	Size	Description	Constraints
FEATURE_TYPE	No	Text	50	Unique feature type that identifies the type of topographic feature. Options: Auxiliary Contour Index Contour Intermediate Contour Index Imperial Contour Intermediate Imperial Contour	dm_contour_ photogrammetry
ATTRIBUTE_SOURCE	No	Text	100	The source imagery, map, or data used to define what the feature type is.
ATTRIBUTE_DATE	No	Date		Date of the source imagery, map, or data used for attributing the feature.
FEATURE_SOURCE	No	Text	100	The source imagery, map, or data that the spatial location of the feature was obtained from.
FEATURE_DATE	No	Date		Date of the feature source information that the location of the feature was obtained from.
ELEVATION_M	Yes	Double		The elevation of the feature measured in metres in relation to the Australian Height Datum
ELEVATION_SOURCE	Yes	Text	100	The digital elevation model, map, or data that the elevation of the feature was obtained from
ELEVATION_DATE	Yes	Date		Date of the digital elevation model, map, or data that the elevation of the feature was obtained from.
ELEV_ACCURACY_M	No	Double		The vertical positional accuracy of the contour measured in metres (plus or minus e.g., +/- 2.5m)
CREATED_DATE*	No	Date		The date the feature was originally captured and first loaded to the database *internal use only
LAST_EDTED_DATE*	No	Date		Date of the last editing or revision to the feature *internal use only
UPPER_SCALE	No	Long		The upper scale for which the feature should be considered suitable for digital display	dm_upper_scale
TEXT_NOTE	Yes	Text	50	For mapping purposes. Additional annotation that can be shown on a map.
ADD_INFORMATION	Yes	Text	255	A comment field (additional information)

Feature Type definitions:

Auxiliary Contour – An additional contour used to aid relief interpretation over flatter or unique terrain, usually half the standard contour interval. The chosen values are of equal elevation above the Australian Height Datum.
Index Contour – Being every fifth Intermediate Contour - classified as “Index Contour” e.g. elevation values of 5m, 25m, 50m, 75m
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 Imperial Contour – Being every fifth Intermediate Imperial Contour - classified as Feature Type “Index Imperial Contour”.
Intermediate Imperial 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. These elevations were originally captured in feet and converted to the nearest metre.
Depression Contour - A closed contour, inside of which the ground or geologic structure is at a lower elevation than that outside and distinguished from other contour lines by ticks marked on the downslope or downdip side.

Upper scale:

1:25 000 – all auxiliary contours and those contours ending in a 5
1:100 000 – all contours evenly divisible by 10 except for the following
1:250 000 – all contours evenly divisible by 50 except for the following
1:1 000 000 – all contours evenly divisible by 100 except for the following
1:2 500 000 – all contours evenly divisible by 250

Capture Process:

AUXILLARY CONTOUR

Definition: – An additional contour used to aid relief interpretation over flatter or unique terrain, usually half the standard contour interval. The chosen values are of equal elevation above the Australian Height Datum.

Alternate Terms: Supplementary Contour

Capture as a 3D polyline along the feature
Capture at an elevation of 2.5 metres above the Australian Height Datum
Capture by directly digitised from orthorectified imagery using specialist 3D terrain model interpretation software or scan and digitise from existing mapping and adding the height as a third dimension (Z).

INDEX CONTOUR

Definition: Being every fifth Intermediate Contour - classified as Feature Type “Index Contour” e.g., elevation values of 5m, 25m, 50m, 75m

Alternate Terms: Major Contour

Capture as a 3D polyline along the feature
Capture with a contour interval of 5 metre
Being every fifth Intermediate Contour - classified as Feature Type “Index Contour” e.g., elevation values of 5m, 25m, 50m, 75m.

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

Capture as a 3D polyline along the feature
Capture with a contour interval of 5 metre
Capture by directly digitised from orthorectified imagery using specialist 3D terrain model interpretation software or scan and digitise from existing mapping and adding the height as a third dimension (Z).

INDEX IMPERIAL CONTOUR

Definition: Being every fifth Intermediate Imperial Contour - classified as Feature Type “Index Imperial Contour”

Alternate Terms:

Elevations were originally captured in feet and converted to the nearest metre.
Being every fifth Intermediate Imperial Contour captured by the appropriate process - classified as Feature Type “Index Imperial Contour”.

INTERMEDIATE IMPERIAL 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. These elevations were originally captured in feet and converted to the nearest metre.

Alternate Terms:

Elevations were originally captured in feet and converted to the nearest metre.
Capture as a 3D polyline along the feature
Capture by directly digitised from orthorectified imagery using specialist 3D terrain model interpretation software or scan and digitise from existing mapping and adding the height as a third dimension (Z).

Contour 10 Metre

A linear feature class, representing an imaginary line on the ground joining points with a regular 10 metre elevation in relation to the Australian Height Datum across the State of Queensland.

Attribute Schema:

Contour 10 Metre
A linear feature class, representing an imaginary line on the ground joining points with a regular 10 metre elevation in relation to the Australian Height Datum 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: Auxiliary Contour Index Bathymetric Contour Index Contour Index Depression Contour Intermediate Bathymetric Contour Intermediate Contour Intermediate Depression Contour	dm_contour
ATTRIBUTE_SOURCE	No	Text	100	The source imagery, map, or data used to define what the feature type is.
ATTRIBUTE_DATE	No	Date		Date of the source imagery, map, or data used for attributing the feature.
FEATURE_SOURCE	No	Text	100	The source imagery, map, or data that the spatial location of the feature was obtained from.
FEATURE_DATE	No	Date		Date of the feature source information that the location of the feature was obtained from.
ELEVATION_M	No	Double		The elevation of the feature measured in metres in relation to the Australian Height Datum
ELEVATION_SOURCE	No	Text	100	The digital elevation model, map, or data that the elevation of the feature was obtained from
ELEVATION_DATE	No	Date		Date of the digital elevation model, map, or data that the elevation of the feature was obtained from.
ELEV_ACCURACY_M	No	Double		The vertical positional accuracy of the contour measured in metres (plus or minus e.g., +/- 2.5m)
CREATED_DATE*	No	Date		The date the feature was originally captured and first loaded to the database *internal use only
LAST_EDTED_DATE*	No	Date		Date of the last editing or revision to the feature *internal use only
UPPER_SCALE	No	Long		The upper scale for which the feature should be considered suitable for digital display	dm_upper_scale
TEXT_NOTE	Yes	Text	50	For mapping purposes. Additional annotation that can be shown on a map.
ADD_INFORMATION	Yes	Text	255	A comment field (additional information)
LIDAR_OVERLAP	Yes	Text	255	For symbology purposes. Showing when overlap occur with 1 & 5 meter contours.

Feature Type definitions:

Auxiliary Contour – An additional contour used to aid relief interpretation over flatter or unique terrain, usually half the standard contour interval. The chosen values are of equal elevation above the Australian Height Datum.
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 10 metre intervals.
Index Contour – Being every fifth Intermediate Contour - classified as Feature Type “Index Contour” e.g., elevation values of 10m, 50m, 100m, 150m
Intermediate Depression Contour – An imaginary line on the ground joining points of equal elevation above the Australian Height Datum, Depressions show decreasing elevation values at 10 metre intervals.
Index Depression Contour – Being every fifth Intermediate Depression Contour - classified as Feature Type “Index Depression Contour”.
Intermediate Bathymetric Contour – An imaginary line joining points of equal depth below the Australian Height Datum, showing increasing depth at 10 metre intervals.
Index Bathymetric Contour – Being every fifth Intermediate Bathymetric Contour - classified as Feature Type “Index Bathymetric Contour”.

Upper scale:

1:100,000 – all contours evenly divisible by 10 except for the following
1:250 000 – all contours evenly divisible by 50 except for the following
1:1 000 000 – all contours evenly divisible by 100 except for the following
1:2 500 000 – all contours evenly divisible by 250

Capture Process:

AUXILLARY CONTOUR

Definition: – An additional contour used to aid relief interpretation over flatter or unique terrain, usually half the standard contour interval. The chosen values are of equal elevation above the Australian Height Datum.

Alternate Terms: Supplementary Contour

Capture as a 2D polyline along the feature
Capture at an elevation of 5 metres above the Australian Height Datum
Auto-generate from the Shuttle Radar Topographic Missing (SRTM) digital terrain model where a 5 metre contour that has been captured using higher accuracy source data does not exist
If a 5 metre contour captured using higher accuracy source data does exist, that data is to be incorporated into the feature class

INDEX BATHYMETRIC CONTOUR

Definition: Being every fifth Intermediate Bathymetric Contour - classified as Feature Type “Index Bathymetric Contour”.

Alternate Terms:

Capture as a 3D polyline along the feature
Capture with a contour interval of 10 metre below the surface of the water
Every fifth Intermediate Bathymetric Contour captured is classified as Feature Type “Index Bathymetric Contour”

INDEX CONTOUR

Definition: Being every fifth Intermediate Contour - classified as Feature Type “Index Contour” e.g., elevation values of 10m, 50m, 100m, 150m

Alternate Terms:

Capture as a 3D polyline along the feature
Capture with a contour interval of 10 metre
Every fifth Intermediate Contour captured is classified as Feature Type “Index Contour”.

INDEX DEPRESSION CONTOUR

Definition: – Being every fifth Intermediate Depression Contour - classified as Feature Type “Index Depression Contour”.

Alternate Terms:

Capture as a 3D polyline along the feature
Capture with a contour interval of 10 metre below the surrounding landform
Every fifth Intermediate Depression Contour captured is classified as Feature Type “Index Depression Contour”.

INTERMEDIATE BATHYMETRIC CONTOUR

Definition: An imaginary line joining points of equal depth below the Australian Height Datum, showing increasing depth at 10 metre intervals.

Alternate Terms: Basic Bathymetric Contour

Capture as a 3D polyline along the feature
Capture with a contour interval of 10 metre below the surface of the water
Auto-generate from an appropriate digital terrain model (if available) where the Bathymetric contours do not exist.
If a Bathymetric contours over the area do exist, that data is to be incorporated into the feature class.
Every fifth Intermediate Bathymetric Contour is classified as Feature Type “Index Bathymetric Contour”.

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 10 metre intervals.

Alternate Terms: Basic Contour

Capture as a 3D polyline along the feature
Capture with a contour interval of 10 metre
Auto-generate from the Shuttle Radar Topographic Missing (SRTM) digital terrain model where contours that has been captured using higher accuracy source data do not exist.
If 10 metre contours over the area do exist, that data is to be incorporated into the feature class.
Every fifth Intermediate Contour is classified as Feature Type “Index Contour”.

INTEMEDIATE DEPRESSION CONTOUR

Definition: Representing an imaginary line on the ground joining points of equal elevation above the Australian Height Datum, Depressions show decreasing elevation values at 10 metre intervals.

Alternate Terms: Basic Depression Contour

Capture as a 3D polyline along the feature
Capture the depression in the landform
Capture with a contour interval of 10 metre below the surrounding landform
Auto-generate from the Shuttle Radar Topographic Missing (SRTM) digital terrain model where contours that has been captured using higher accuracy source data do not exist.
If 10 metre contours over the area do exist, that data is to be incorporated into the feature class.
Every fifth Intermediate Depression Contour is classified as Feature Type “Index Depression Contour”.

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