Content Comparison

AQUACULTURE AREA

Definition: Shallow beds, usually segmented by constructed walls or leased areas within natural waterways used for the commercial breeding and keeping of aquatic animals or plants

Alternate Terms: Fish farm, Fish pen, Oyster lease, Prawn farm

 ·      

• Capture as a 2D polygon

• The general outline is plotted from orthorectified imagery

• Locations can be obtained from other datasets, existing mapping, address details, tourist publications, organisations, Local Government websites or other source material.

• No Feature Type “Shoreline” surrounds a pondage area

SALT EVAPORATOR

Definition: A flat shallow area, used for the commercial production of salt by evaporation.

Alternate Terms:

 ·      

• Capture as a 2D polygon

• The general outline is plotted from orthorectified imagery

• Locations can be obtained from other datasets, existing mapping, address details, tourist publications, organisations, Local Government websites or other source material.

• No Feature Type “Shoreline” surrounds a pondage area

SETTLING POND

Definition: Shallow ponds, usually segmented by constructed walls, used for the treatment of sewage or other wastes or water storage areas by various organisations.

Alternate Terms: Sewerage Pond

 ·      

• Capture as a 2D polygon

• The general outline is plotted from orthorectified imagery

• Locations can be obtained from other datasets, existing mapping, address details, tourist publications, organisations, Local Government websites or other source material.

• No Feature Type “Shoreline” surrounds a pondage area

SHORELINE 

Definition: The line where the land meets a designated waterbody area on the mainland, and on marine or terrestrial islands.

Alternate Terms:

 ·      

• Automatically generated from the associated waterbody areas.

• Capture as a 2D polyline

• Shorelines do no cross other shorelines e.g., where two watercourse area features meet, the common line is called a Feature Type “Shoreline Junction”.

• Shorelines are not captured coincident with a Feature Type “Dam Wall Major”

• Shorelines are not captured when coincident with a Feature Type “Coastline Junction”

SHORELINE JUNCTION

Definition: The artificial line between two adjoining waterbody areas.

Alternate Terms:

•  Automatically generated from the associated waterbody areas

• Capture as a 2D polyline

• No “Shoreline Junction” Feature Type is captured when coincident with a “Coastline Junction” Feature Type

• The attribute Junction Code is determined by the Upper_scale value of the associated Shoreline feature.

UPPER_SCALE

JUNCTION_CODE

·    1:25 000

·    1:100 000

·    1:250 000

·    1:1 000 00

·    1:2 500000

·    1:5 000000

·    1:10 00000

·      1

·      2

·      3

·      4

·      5

·      6

·      7

·       Where two waterbody areas meet and they have a different Upper_scale value, the Junction Code of both features will be the larger Junction Code. e.g., if a 1:1 000 000 waterbody areas meets a 1:25 000 waterbody area, the Junction Code of both features will be 4.

• See Codes

Image Added

• Where two waterbody areas meet and they have a different Upper_scale value, the Junction Code of both features will be the larger Junction Code. e.g., if a 1:1 000 000 waterbody areas meet a 1:25 000 waterbody area, the Junction Code of both features will be 4.

• No Shoreline Junction feature is shown between two waterbody areas that have the same Upper_scale value.

CANAL ESTATE  

Definition: The constructed watercourse area feature of a residential, subdivision development used for recreational activities and marine navigation.

Alternate Terms:

 ·      

• Capture as a 2D polygon

• Capture features with extent greater than 625 m²

• Location is plotted from orthorectified imagery.

• For areas with a width generally greater than 30 meters

• Capture at the mean high-water mark. When the cadastral boundary is the mean high-water mark then the “Canal Estate” boundary is coincident with the cadastre.

• A Connector is placed down the centre of the area feature to continue the linear drainage network in the direction of flow.

• A Shoreline feature type surrounds a Canal Estate feature.

DRAINAGE CHANNEL

Definition: A wide constructed watercourse area designed for removing or redirecting water flow.

Alternate Terms:

 ·      

• Capture as a 2D polygon

• Capture features with extent greater than 625 m²

• Location is plotted from orthorectified imagery.

• For areas with a width generally greater than 30 meters and length over 200 metres or considered significant.

• A Connector is placed down the centre of the Drainage Channel to continue the linear drainage network in the direction of flow.

• A Shoreline feature type surrounds a Drainage Channel.

• For features less than 25 metres in width, capture as a Feature Type “Watercourse” with a function of Drain.

ESTUARY

Definition: The part of the mouth or lower course of a river in which its currents meet the sea’s tides and is subject to their effects.

Alternate Terms:

·       Capture as a 2D polygon·      

• Capture features with extent greater than 625 m²

• Location is plotted from orthorectified imagery.

• For areas with a width generally greater than 30 meters

• A Connector is placed down the centre of the Estuary to continue the linear drainage network in the direction of flow.

•  A Shoreline feature type surrounds an Estuary.

• For features less than 25 metres in width, capture as a Feature Type “Watercourse” with a function of Estuary.

FLOOD IRRIGATION STORAGE

Definition: A reservoir of water collected and stored behind constructed barriers, for the specific use of flooding pastures via internal irrigation systems.

Alternate Terms:

 ·      

• Capture as a 2D polygon

• Capture features with extent greater than 625 m²

• Location is plotted from orthorectified imagery.

• Capture areas greater than 625 m²

• Capture at full supply level or as best that can be determined.

• If the elevation for full supply level is available, generate full supply level by intersecting the elevation with the terrain model.

• A Connector is placed down the centre of the waterbody area to continue the linear drainage network in the direction of flow.

•  A Shoreline feature type surrounds a Flood Irrigation Storage.

•  For features less than 25 metres in width, capture as a Feature Type “Watercourse” with a function of Natural Watercourse.

INDUSTRIAL WATER STORAGE

Definition: A reservoir of water collected and stored behind constructed barriers, for the specific use by industry.

Alternate Terms:

 ·      

• Capture as a 2D polygon

• Capture features with extent greater than 625 m²

• Location is plotted from orthorectified imagery.

• Capture areas greater than 625 m²

• Capture at full supply level or as best that can be determined.

• If the elevation for full supply level is available, generate full supply level by intersecting the elevation with the terrain model.

• A Connector is placed down the centre of the waterbody area to continue the linear drainage network in the direction of flow.

IRRIGATION CHANNEL

Definition: A constructed watercourse area used to support agricultural development and directing water from one area to another.

Alternate Terms:

 ·      

• Capture as a 2D polygon

• Capture features with extent greater than 625 m²

• Location is plotted from orthorectified imagery.

• Capture areas greater than 30 meters and length over 200 metres or considered significant.

• A Connector is placed down the centre of the waterbody area to continue the linear drainage network in the direction of flow.

• A Shoreline feature type surrounds an Irrigation Channel.

• For features less than 25 metres in width, capture as a Watercourse line with a Watercourse feature type and a function of Irrigation Line

LAND SUBJECT TO INUNDATION  

Definition: Low lying land usually adjacent to lakes or watercourses, which is regularly covered with flood water for short periods.

Alternate Terms: Flood plain, STI

 ·      

• Capture as a 2D polygon

• Capture features with extent greater than 625 m²

• Location is plotted from orthorectified imagery.

• Capture areas greater than 2500 m²

• If a watercourse flows into a “Land Subject to Inundation” feature, and is visible, the watercourse channel is also shown to continue the linear drainage network connectivity.

• No Shoreline feature surrounds a

• Feature Type of “Subject to Inundation”.

MARINE SWAMP

Definition: Low-lying land saturated with salty brackish waters and covered with characteristic grasses, reed growths and mangroves.

Alternate Terms:

 ·      

• Capture as a 2D polygon

• Capture features with extent greater than 625 m²

• Location is plotted from orthorectified imagery.

• Capture areas greater than 2500 m²

• If a watercourse flows into a marine swamp and is not visible, a Feature Type “Connector” is used to join through the marine swamp for linear drainage network connectivity.

• Where the channel of the watercourse is clearly visible, a Feature Type “Watercourse” is used to continue the linear drainage network connectivity.

•  No Shoreline feature surrounds a Marine Swamp.

NATURAL LAKE  

Definition: A natural occurring body of standing water surrounded by land.

Alternate Terms: Billabong, Lagoon, Pond, Pool, Waterhole, Elongated waterhole

 ·      

• Capture as a 2D polygon

• Capture features with extent greater than 625 m²

• Location is plotted from orthorectified imagery.

• Capture areas greater than 625 m²

• Capture at full supply level or as best that can be determined.

• If the elevation for full supply level is available, generate full supply level by intersecting the elevation with the terrain model.

• Long and thin waterbodies that follow a watercourse and are less than 300 metres in length are captured as a Lake feature type.

• Long and thin waterbodies that follow a watercourse and are greater than 300 metres in length are captured as a Watercourse Area feature type.

• If a linear water feature flows into a natural lake, a Connector feature type is placed down the centre of the feature or follows the original watercourse to continue the linear network in the direction of flow.

• For a lake at the start of a linear drainage network, no linear feature is captured through the lake, the linear drainage network starts from a vertex on the lake boundary in the direction of flow.

•  A Shoreline feature type surrounds a Natural Lake.

NATURAL WATERCOURSE AREA

Definition: A natural channel of a watercourse that may or may not contain water on a permanent basis but may flow intermittently or seasonally.

Alternate Terms: Anabranch, Aqueduct, Branch, Brook, Burn, Creek, Gully, River, Stream, Tributary

 ·      

• Capture as a 2D polygon

• Capture features with extent greater than 625 m²

• Location is plotted from orthorectified imagery.

• Capture areas with a width greater than 30 meters and greater than 300 metres in length.

• At full supply level or as best that can be determined

• If the elevation for full supply level is available, generate full supply level by intersecting the elevation with the terrain model.

• A Connector is placed down the centre of the Natural Watercourse Area to continue the linear drainage network in the direction of flow.

• The name may be obtained from Queensland Place Names dataset.

• A Shoreline feature type surrounds a Natural Watercourse Area.

ORNAMENTAL LAKE

Definition: A permanent waterbody added to the landscape of parks, gardens, and recreational areas, primarily for aesthetic or recreational purposes.

Alternate Terms:

 ·      

• Capture as a 2D polygon

• Capture features with extent greater than 625 m²

• Location is plotted from orthorectified imagery.

• Locations can be obtained from other datasets, existing mapping, tourist publications, organisations, Local Government websites, or other source material.

• Capture areas greater than 625 m².

• Capture at full supply level or as best that can be determined.

• If the elevation for full supply level is available, generate full supply level by intersecting the elevation with the terrain model.

•  A Connector is placed down the centre of the Ornamental Lake to continue the linear drainage network in the direction of flow (if required).

RAPIDS AREA

Definition: Where a change in gradient or the narrowing of the banks of a watercourse cause a marked increase in water velocity. The surface water is usually broken.

Alternate Terms: Cascades

 ·      

• Capture as a 2D polygon

• Capture features with extent greater than 625 m²

• Location is plotted from orthorectified imagery.

•  Locations can be obtained from other datasets, existing mapping, tourist publications, organisations, Local Government websites, or other source material.

• Capture areas greater than 30 meters.

• For features less than 25 metres in width, capture as a Watercourse feature type with a function of Rapid

• A Connector is placed down the centre of the Rapids Area to continue the linear network in the direction of flow.

• The name may be obtained from Queensland Place Names dataset.

• A Shoreline feature type surrounds a Rapids Area

RURAL WATER STORAGE

Definition: A reservoir of water stored for rural farming and agricultural practices (except for Flood Irrigation Storage) and/or for the consumption of the associated landowners.

Alternate Terms:

 ·      

• Capture as a 2D polygon

• Capture features with extent greater than 625 m²

• Location is plotted from orthorectified imagery.

• Capture areas greater than 625 m²

• Capture at full supply level or as best that can be determined.

•  If the elevation for full supply level is available, generate full supply level by intersecting the elevation with the terrain model.

• A Connector is placed down the centre of the Rural Water Storage area to continue the linear drainage network in the direction of flow.

• A Shoreline feature type surrounds a Rural Water Storage area.

SALINE COASTAL FLAT

Definition: That nearly level tract of land between mean high water and the line of the highest astronomical tide.

These flats are subject to tidal inundation and may contain saltwater marsh, mangrove wetlands, be devoid of vegetation or a combination of all three.

Alternate Terms:

 ·      

• Capture as a 2D polygon

•  Capture features with extent greater than 625 m²

• Location is plotted from orthorectified imagery.

• Capture areas greater than 2500 m²

• The coastline (mean high-water mark) and mangroves assist in the capture process.

• The seaward side of the flat is to be co-incident with the coastline or abutting the back of any mangroves.

•  No Shoreline feature surrounds a Saline Coastal Flat.

SPILLWAY AREA 

Definition: A constructed path or channel for excess water to pass over or beside a dam wall or weir.

Alternate Terms:

 ·      

• Capture as a 2D polygon

• Capture features with extent greater than 625 m²

• Location is plotted from orthorectified imagery.

• Capture area (at no smaller than) 30 meters.

• A Connector is placed down the centre of the Spillway Area to continue the linear drainage network in the direction of flow.

• For features less than 25 metres in width, capture as a Watercourse feature type with a function of Spillway Line

•  A Connector is placed down the centre of the Spillway Area to continue the linear drainage network in the direction of flow.

• No Shoreline feature surrounds a Spillway Area

STORMWATER STORM WATER BASIN

Definition: A reservoir being a constructed basin used to hold and distribute groundwater runoff.

Alternate Terms: Detention Basin, Retention Basin, Stormwater Pond.

 ·       Capture

•  Capture as a 2D polygon

•  Capture features with extent greater than 625 m²

•  Location is plotted from orthorectified imagery.

• Capture areas greater than 625 m²

•  Capture at full supply level or as best that can be determined.

•  A Connector is placed down the centre of the Stormwater Basin to continue the linear drainage network in the direction of flow.

• A Shoreline feature type surrounds a Stormwater Basin.

• Add characteristics of Stormwater Basin into attribute table column ADD_INFORMATION.

• e.g. detention, retention

SWAMP

Definition: An area of land so saturated with fresh water that it is not suitable for agricultural or pastoral use and presents a barrier to free passage.

Alternate Terms: Bog, Marsh, Marshland, Quagmire, Wetland

 ·      

• Capture as a 2D polygon

• Capture features with extent greater than 625 m²

• Location is plotted from orthorectified imagery.

• Capture areas greater than 2500 m²

• Where the channel of the watercourse is clearly visible, a Watercourse feature type is used to continue the linear drainage network.

•  If a watercourse flows into a swamp and is no longer visible, a Connector feature is used to join through the swamp for linear connectivity. Thus, continuing the linear drainage network in the direction of flow.

• For swamps saturated with saltwater, refer to the feature type Marine Swamp.

• No Shoreline feature surrounds a Swamp.

TOWN WATER STORAGE

Definition: A reservoir of water collected and stored behind a constructed barrier for some specific use by peri-urban, and rural township populations. The water is treated post storage and connected to regulated water networks.

Alternate Terms:

 ·      

• Capture as a 2D polygon

• Capture features with extent greater than 625 m²

• Location is plotted from orthorectified imagery.

• Capture areas greater than 625 m²

• Capture at full supply level or as best that can be determined.

• If the elevation for full supply level is available, generate full supply level by intersecting the elevation with the terrain model.

• A Connector is placed down the centre of the Town Water Storage area to continue the linear drainage network in the direction of flow.

•  A Shoreline feature type surrounds a Town Water Storage area.

WATER SUPPLY CHANNEL

Definition: A constructed watercourse area used to enable the transfer of stored or available water from one area to another.

Alternate Terms:

 ·      

• Capture as a 2D polygon

• Capture features with extent greater than 625 m²

•       Location is plotted from orthorectified imagery.

• Capture areas greater than 30 meters and length over 200 metres or considered significant.

• A Connector is placed down the centre of the Water Supply Channel to continue the linear drainage network in the direction of flow.

•  For features less than 25 metres in width, capture as a Watercourse line with a Watercourse feature type and a function of Water Supply Line.

• A Shoreline feature type surrounds the Water Supply Channel.

GAMMA HOLE

Definition: Natural cavities of varying shape, diameter, and depth, found in hard granite outcrops and in the decomposed granite of a breakaway, which can and usually does hold water.

Alternate Terms:

 ·      

• Capture as a 2D point at the centre of the feature.

• Capture features with extent less than 625 m²

• Location is plotted from orthorectified imagery.

• Locations can be obtained from other datasets, existing mapping, address details, tourist publications, organisations, Local Government websites or other source material.

POOL

Definition: A small isolated natural depression not within a watercourse (Perennial or Near Perennial) that retains standing water.

Alternate Terms: Soak

 ·       Capture

•  Capture as a 2D point at the centre of the feature.

•  Capture features with extent less than 625 m²

•  The location is plotted from orthorectified imagery.

•  Locations can be obtained from existing mapping, other datasets, Government websites or other source material.

•  Capture at the vertex of a watercourse if the feature is on a watercourse.

ROCKHOLE

Definition: A natural hole formed by the weathering of solid rock that fills with water during local rainfall events.

Alternate Terms:

 ·      

• Capture as a 2D point at the centre of the feature.

•  Capture features with extent less than 625 m²

•  The location is plotted from orthorectified imagery.

• Locations can be obtained from existing mapping, other datasets, Government websites or other source material.

•  Capture at the vertex of a watercourse if the feature is on a watercourse.

RURAL WATER SUPPLY

Definition: A constructed permanent waterbody delivering water to rural or semi-rural properties for the consumption of the associated landowners.

Alternate Terms: Bore, Dam, Farm Dam, Gully Dam, Turkey’s Nest, Well

 ·      

• Capture as a 2D point at the centre of the feature.

• Capture features with extent less than 625 m²

• The location is plotted from orthorectified imagery.

•  Locations can be obtained from existing mapping, other datasets, Government websites or other source material.

• Capture at the vertex of a watercourse if the feature is on a watercourse.

• For features with area greater than 625m², capture as a Feature Type “Lake” in Waterbody Areas

WATERHOLE

Definition: A natural depression that collects and holds perennial water within an Ephemeral watercourse or an isolated natural depression not within a watercourse channel.

Alternate Terms: Billabong, Hole, Holes, Lagoon, Native Well, Spring

 ·      

• Capture as a 2D point at the centre of the feature.

• Capture features with extent less than 625 m²

• The location is plotted from orthorectified imagery.

• Locations can be obtained from existing mapping, other datasets, Government websites or other source material.

• Capture at the vertex of a watercourse if the feature is on a watercourse.

• The name may be obtained from Queensland Place Names dataset.

• For features with area greater than 625m², capture as a Feature Type “Lake” in Waterbody Areas

CANAL LINE

Definition: A constructed watercourse feature part of a residential, subdivision development used for recreational activities and marine navigation.

Alternate Terms: Canal, Waterway

 ·      

• Capture as a 2D polyline

• Location is plotted from orthorectified imagery.

•  Locations can be obtained from other datasets, existing mapping, address details, tourist publications, organisations, Local Government websites or other source material.

• Capture down the centre of the feature for features less than 25 metres in width.

• Capture in the direction of flow to maintain the linear drainage network.

• For features greater than 25 metres in width, capture as a Waterbody Area with a Feature Type “Watercourse Area” and a Function of “Canal Estate”.

CONNECTOR

(see function “linear connector”)  

Definition: An artificial line placed to connect watercourse lines on either side of the waterbody area enabling drainage network analysis.

Alternate Terms:

 ·      

• Capture as a 2D polyline as function “linear connector”

• Location is plotted from orthorectified imagery.

• Capture in the direction of flow to maintain the linear drainage network.

• Capture the best interpretation of where the feature could be located or as a straight line joining the visible ends of the watercourse features.

• Where a watercourse flows through a swamp is not visible, a Feature Type “Connector” is used to join through the swamp.

Not  Not Connectors:·      

• Where a watercourse channel flows through an Ephemeral “Watercourse Area” Feature Type and is clearly visible in imagery, a Feature Type “Watercourse” is used to continue the drainage network.

• Where a watercourse flows through a “Subject to Inundation” Feature Type, a Feature Type “Watercourse” is used to continue the drainage network.

• Where the channel of the watercourse is clearly visible in imagery through the swamp, a Feature Type “Watercourse” is used to continue the drainage network.

CULVERT

Definition: A structure (clearly visible in imagery), usually under a major road, railway, or major development to provide for the flow of water.

Alternate Terms: Box culvert

 ·      

• Capture as a 2D polyline

•  Location is plotted from orthorectified imagery.

•  Capture in the direction of flow to maintain the linear drainage network.

•  Capture down the centre of the feature or the best interpretation of where original watercourse would be.

• Culverts are generally only shown under railways and roads classified as motorway, highway, main road or secondary road or major developments’ unless the culvert is significant in the environment.

• The culvert must be of a large structure, clearly visible in imagery or the embankments of the culvert be at least 10 metres high. Where the above conditions are not met, or a bridge, floodway, ford, or causeway exists, no culvert is shown, and the adjoining feature type (generally a watercourse) is concatenated to form a single line string in the direction of flow under the road or railway.

• The culvert should be roughly at a right angle to the road/railway unless clearly shown otherwise.

• If the feature is less than 25 metres in length, exaggerate to a minimum length of 30 metres.

• The linear watercourse features on either side of the culvert are snapped to the ends of the culvert to create a continuous linear network in the direction of flow.

DEM CONNECTOR

(see function “linear connector”)  

Definition: An artificial line placed when the watercourse feature disappears beneath the landscape or land development.

Alternate Terms:

 ·      

• Capture as a 2D polyline as function “linear connector”

• Location is plotted from orthorectified imagery.

• The underground location is difficult to determine.

•  Capture in the direction of flow to maintain the linear drainage network.

• Capture where the feature could be located or as a straight line joining the visible ends of the watercourse features.

• DEM Connectors will carry the attributes of the watercourse they represent.

• An artificial line used to connect linear hydrographic features across dry land (e.g., no defined waterbody area or mangrove) to allow network analysis of riverine networks. DEM Connectors join related hydrological features where no visual evidence via imagery interpretation is achievable (e.g., minute changes in elevation or water flows into a soak hole and hydrological features are then connected via groundwater). DEM Connectors can be used to enforce Digital Elevation Models.

DRAIN

Definition: A narrow constructed watercourse designed for the purpose of removing surplus water from the lands surface.

Alternate Terms: Ditch, Drain, Bore Drain

 ·      

• Capture as a 2D polyline

• Location is plotted from orthorectified imagery.

• Capture in the direction of flow to maintain the linear drainage network.

• Capture down the centre of the feature for features less than 25 metres in width and greater than 150 metres in length.

• For features greater than 25 metres in width, capture as a Waterbody Area with a Feature Type “Watercourse Area” and a Function of “Drainage Channel”

·              NOTE: A drain may be captured as part of the continuous linear drainage network, providing continuation of flow for a named or unnamed watercourse.

IRRIGATION LINE

Definition: A constructed watercourse usually part of a network for irrigation, used when directing water from one source to another.

Alternate Terms: Aqueduct, Channel

 ·      

• Capture as a 2D polyline

• Location is plotted from orthorectified imagery.

•  Locations can be obtained from other datasets, existing mapping, address details, organisations, Local Government websites or other source material.

• Capture in the direction of flow to maintain the linear drainage network.

• Capture down the centre of the feature for features less than 25 metres in width and greater than 150 metres in length.

• For features greater than 25 metres in width capture as a Waterbody Area with a Feature Type “Watercourse Area” and a Function of “Irrigation Channel”.

• NOTE: If an irrigation line is a pipeline, it may be captured as either Underground Connector, or if above ground, a Connector, not a Watercourse – constructed.

LINEAR CONNECTION

Definition: An artificial line joining between watercourse lines to create a continuous linear network for analysis.

Alternate Terms:

 ·      

• Capture as a 2D polyline

• Location is plotted from orthorectified imagery.

• Capture in the direction of flow to maintain the linear drainage network.

• This function is used for Feature Types “Connector, DEM Connector, Underground Connector.

• ” 

NATURAL WATERCOURSE  

Definition: A natural channel that may or may not contain water on a permanent basis but may flow intermittently or seasonally.

Alternate Terms: Anabranch, Branch, Brook, Burn, Creek, Gully, River, Stream, Tributary

 ·      

• Capture as a 2D polyline

• Location is plotted from orthorectified imagery.

• Locations can be obtained from other datasets, existing mapping, tourist publications, organisations, Local Government websites or other source material.

• Capture in the direction of flow to maintain the linear drainage network.

• Capture down the centre of the feature for features less than 25 metres in width.

• For features greater than 25 metres in width capture as a Waterbody Area with a Feature Type “Watercourse Area”

• For features in open terrain, capture features greater than 750 metres in length.

• For features in steep terrain, capture features greater than 500 metres in length

• See also “Connector” for when a watercourse replaces a connector through waterbodies.

• Where a watercourse flows through a non-perennial “Watercourse Area” Feature Type and is clearly visible in imagery, a Feature Type “Watercourse” is used to continue the drainage network.

•  Where a watercourse flows through a “Subject to Inundation” Feature Type, a Feature Type “Watercourse” is used to continue the drainage network.

• Where the course of the watercourse is clearly visible in imagery through the swamp, a Feature Type “Watercourse” is used to continue the drainage network.

RAPIDS LINE 

Definition: A place of broken fast flowing water in a watercourse, caused by the narrowing of the banks or a change in gradient of the watercourse bed.

Alternate Terms: Cascades, Chut, White Water

 ·      

• Capture as a 2D polyline

•  Location is plotted from orthorectified imagery.

• Locations can be obtained from other datasets, existing mapping, tourist publications, organisations, Local Government websites or other source material.

• Capture in the direction of flow to maintain the linear drainage network.

• Capture down the centre of the feature for features less than 25 metres in width and show a minimum length of 50 metres.

• For features greater than 25 metres in width capture as a Waterbody Area with a Feature Type “Watercourse Area” and a Function of “Rapids Area”

SPILLWAY LINE  

Definition: A constructed path or channel allowing excess water to pass over or beside the waterbody.

Alternate Terms: Duct

 ·      

• Capture as a 2D polyline

• Location is plotted from orthorectified imagery.

• Locations can be obtained from other datasets, existing mapping, tourist publications, organisations, Local Government websites or other source material.

• Capture in the direction of flow to maintain the linear drainage network.

• Capture down the centre of the feature, if required extend the features length to a minimum of 25 metres

• For features greater than 25 metres in width capture as a Waterbody Area with a Feature Type “Watercourse Area” and a Function of “Spillway Area”

UNDERGROUND CONNECTOR

(see function “linear connector”)  

Definition: An artificial line used to connect water features underground, where the path is generally known but not visible. Connection could be through pipes or natural seepage.

Alternate Terms: Underground pipes

 ·      

• Capture as a 2D polyline as function “linear connector”

• Location is plotted from orthorectified imagery.

• The underground location is difficult to determine.

• Capture in the direction of flow the best interpretation of where the feature could be located or as a straight line joining the visible ends of the watercourse features.

• If the end point of the connector cannot be determined, an assumption is not made as to where the watercourse may flow, and a connector will not be captured.

• Do not capture where the Feature Type “Culvert” would be more appropriate to use.

WATER SUPPLY LINE

Definition: A constructed watercourse used to enable the transfer of stored or available water from one area to another.

Alternate Terms:

 ·      

• Capture as a 2D polyline

• Location is plotted from orthorectified imagery.

• Locations can be obtained from other datasets, existing mapping, address details, tourist publications, organisations, Local Government websites or other source material.

• Capture down the centre of the feature for features less than 25 metres in width and show a minimum length of 150 metres.

• For features greater than 25 metres in width, capture as a Waterbody Area with a Feature Type “Watercourse Area” and a Function of “Water Supply Channel”.

WATERFALL

Definition: A place where a sudden change in the bed of a watercourse causes the water to fall almost vertically.

Alternate Terms: Fall

 ·      

• Capture as a 2D point.

•  Location is plotted from orthorectified imagery.

• The waterfall point is to be snap to the watercourse line and be coincident with the identified edge of the ledge or vertical drop.

• Reference the elevation from the highest resolution DEM and existing LiDAR over the area.

•  The name is obtained from Queensland Place Names dataset.

•  Locations can be obtained from other datasets, existing mapping, tourist publications, Local Government websites or other source material.