Linear Landforms

A polyline feature class displaying the location of identified coastal, marine and terrestrial landforms.

Linear Landforms
A polyline feature class displaying the location of identified coastal, marine and terrestrial landforms.
Column Name	Nulls	Format	Size	Description	Constraints
FEATURE_TYPE	No	Text	50	Unique feature type that identifies the type of feature. Options: Beach Cliff Passage Range Reach Valley Other Linear Landform	dm_linear_ landform
NAME	Yes	Text	100	The name of the feature (if available)
ALTERNATE_NAME	Yes	Text	100	An alternate name of the feature if available from the Queensland Place Names Database, otherwise left blank
QLD_PNDB_ID	Yes	Long		Queensland Place Names Database unique identifier
ATTRIBUTE_SOURCE	No	Text	100	If the feature is named, the attribute_source is the source imagery, map, or data from which the features name has been obtained. If the feature is not named, the attribute_source is 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.
ADDITIONAL_NAMES	Yes	Text	100	Other names of the feature if not recorded in the Queensland Place Names Database. May be commonly known by other names or have different spelling. Multiple names can be shown, separated by a comma.
ADD_NAMES_SOURCE	Yes	Text	100	The source map or data that the additional names were obtained. Multiple sources can be shown, separated by a comma. If multiple sources are shown, the written sequence will be the same as the written sequence of the names themselves.
FEATURE_SOURCE	No	Text	100	The source imagery, map, or data that the spatial location and shape of the of the feature was obtained from.
FEATURE_DATE	No	Date		Date of the source imagery, map, or data that the spatial location and shape of the feature was obtained from.
PFI	No	Text		A Persistent Feature Identifier (PFI) is generated for each feature at the point of creation in the database. The value of the PFI will stay with the feature through all changes to the feature (both spatial and non-spatial) until the feature is retired. (See Persistent and Unique Feature Identifiers)
UFI	No	Text		A Unique Feature Identifier (UFI) is generated for each new feature at the point of creation in the database (at this point the PFI and UFI will be the same). The value of the UFI will stay with the feature through all changes to the feature (both spatial and non-spatial) unless the feature is split into multiple other parts. If the feature is split, the separate parts will retain the original PFI but new UFI’s will be generated for the split parts. (See Persistent and Unique Feature Identifiers)
CREATED_DATE*	No	Date		The date the feature was originally captured and first loaded to the database *internal use only
LAST_EDITED_DATE*	No	Date		Date of the last editing or revision to the feature *internal use only
DIMENSION_M	No	Double		The length of the feature measured in metres GDA2020
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. If the feature has no name, type in lower case, the feature type: e.g., beach
ADD_INFORMATION	Yes	Text	255	A comment field (additional information)

Feature Type definitions:

Beach - A named gently sloping shore which is washed by waves or tide - this may occur bordering the sea, waterbody, or watercourse.
Cliff – A named high steep face of rock and or compacted soil that is an obstacle to movement.
Passage – A named navigable channel, especially one through reefs or islands.
Range – A named series of connected or aligned mountains or mountain ridges.
Reach – A named stretch of river between two bends.
Valley – A named elongated low-lying area of land bordered by higher ground, such as hills or mountains, typically with a watercourse flowing through it.
Other Linear Landform – Any linear landform not covered by the above.

Upper scale:

Individual features may not agree with the following specifications to improve mapping legibility.

1:25 000 – < 125 m
1:100 000 – >/= 125 m and < 1,250 m
1:250 000 – >/= 1,250 m and < 10,000 m
1:1 000 000 – >/= 10,000 m and < 100,000 m
1:2 500 000 – >/= 100,000 m and < 300,000 m
1:5 000 000 – >/= 300,000 m

Capture process:

BEACH

Definition: A named gently sloping shore which is washed by waves or tide - this may occur adjacent to sea, waterbody, or watercourse

Alternate Terms:

Capture as a 2D polyline.
The location of the feature is plotted from orthorectified imagery.
The feature to be captured parallel to the defined coastline or shoreline and halfway between the defined coastline or shoreline and vegetation on the mainland.
Locations can be obtained from other datasets, existing mapping, tourist publications, organisations, Local Government websites, or other source material.
The name is obtained from Queensland Place Names dataset.
Only named beaches are captured.

CLIFF

Definition: A high steep face of rock and or compacted soil that is an obstacle to movement.

Alternate Terms: Bluff, Coastal cliff, Crag, Escarpment, Precipice

Capture as a 2D polyline
The location of the feature is plotted from orthorectified imagery.
The direction of the polyline to be such that the cliff face is on the right side of the polyline in the direction of capture.
Captured polyline is to be no smaller than 125m. (if necessary, extend length)
Obtain position and extent by using suitable elevation datasets (contours) and/or the highest resolution digital elevation model (DEM) over the area.
The name is obtained from Queensland Place Names dataset.
Only named cliffs are captured.

PASSAGE

Definition: A named navigable channel, especially one through reefs or islands

Alternate Terms: Channel, Cutting, Deep, Entrance, Gutter, Opening, Pass, Seaway, Strait, The Narrows

Capture as a 2D polyline
The location of the feature is plotted from orthorectified imagery.
The actual extents of these features are fuzzy and as such hard to define, show polyline in the middle of the feature, parallel to its sides.
Position and extent are determined from documentation, maritime charts, historical mapping other datasets, existing mapping, or other source material.
The name is obtained from Queensland Place Names dataset.
Only named passages are captured.
NOTE: Torres Strait is included in the Feature Class “Seas”
NOTE: A small number of watercourses named as Channels in Western Queensland have been included in the Feature Class “Watercourse Lines”

RANGE

Definition: A named series of connected and aligned mountains or mountain ridges.

Alternate Terms: Mountain Range, Razorback, Ridge, Spur

Capture as a 2D polyline
The location of the feature is plotted from orthorectified imagery.
The actual extents of these features are fuzzy and as such hard to define.
Obtain position and extent by using suitable elevation datasets (contours) and/or the highest resolution digital elevation model (DEM) over the area. (Traversing along the watershed)
Locations can be obtained from existing mapping, other datasets, Local Government websites or other source material.
The name is obtained from Queensland Place Names dataset.
Only named ranges are captured.

REACH

Definition: A stretch of river between two bends

Alternate Terms:

Capture as a 2D polyline
The location of the feature is plotted from orthorectified imagery.
The actual extents of these features are fuzzy and as such hard to define.
Capture polyline coincident with the Feature Type “Connector” down the centre of the river
Position and extent are determined from documentation, maritime charts, historical mapping other datasets, existing mapping, or other source material.
The name is obtained from Queensland Place Names dataset.
Only named reaches are captured.

VALLEY

Definition: A named elongated low-lying area of land bordered by higher ground, such as hills or mountains, typically with a watercourse flowing through it.

Alternate Terms: Canyon, Dale, Gorge, Ravine

Capture as a 2D polyline along the centre of the feature
The location of the feature is plotted from orthorectified imagery.
The actual extents of these features are fuzzy and as such hard to define.
Position and extent are determined from historical mapping, other datasets, existing mapping, or other source material.
The name is obtained from Queensland Place Names dataset.

· Only named valleys are captured.