Queensland floodplain assessment overlay

Identification

Title: Queensland floodplain assessment overlay
Alternative title: IQATLAS.QLD_FLOODPLAIN_ASSMT_OVERLAY
Date: 2013-10-17 (publication)
Online resource:
URL/service: Function: download

Description

Abstract / Description:
The Queensland Floodplain Assessment Overlay (QFAO) represents a floodplain area within drainage sub-basins in Queensland. It has been developed for use by local governments as a potential flood hazard area. It represents an estimate of areas potentially at threat of inundation by flooding. The data has been developed through a process of drainage sub-basin analysis utilising data sources including 10 metre contours, historical flood records, vegetation and soils mapping and satellite imagery. This data represents an initial assessment and will be subject to refinement by respective Local Government Authorities.
Resource format:
Name/identifier: SHP or TAB
Version: 1
Environment description:
ArcSDE
Language: eng
Character set: unknown

Topic

ISO topic category codes: planningCadastre
Theme keywords:
Thesaurus: ANZLIC Search Words
Keyword: HAZARDS-Flood
Date: unknown
Thesaurus: Other
Keyword: flood
Keyword: floodlines
Keyword: floodline
Keyword: flood map
Keyword: disaster
Keyword: Q100
Date: unknown
Other citation details:
Theme keywords input by metadata publisher

Spatial Data Information

Spatial representation type: vector
Coordinate Reference System EPSG code: EPSG:4938
Title: EPSG Geodetic Parameter Dataset
Date: 2007-07-16 (revision)
Edition: Version 6.13
Spatial resolution:
Equivalent scale: 1 : 100000

Contacts

Point of contact:
Organisation: Department of Natural Resources and Mines
Position: Senior Spatial Information Officer
Address:
Email: SIProductdelivery@dnrm.qld.gov.au
Phone:
Voice: 61 7 3896 3162
Custodian:
Organisation: Queensland Reconstruction Authority
Position: (QRA)
Owner:
Organisation: Queensland Reconstruction Authority
Position: (QRA)
Distributor:
Organisation: Department of Natural Resources and Mines
Position: opendata@dnrm.qld.gov.au

Status

Progess status: completed
Maintenance and update frequency: asNeeded

Data / Resource Constraints

Resource Access Level:
Security classification (ISO 19115): unclassified
Copyright: (as use constraint)
© State of Queensland (Department of Natural Resources and Mines) 2013
Licence: (as use constraint)
This material is licensed under a Creative Commons - Attribution 3.0 Australia licence.
Creative Commons License
The Queensland Reconstruction Authority requests attribution in the following manner:
© State of Queensland (Queensland Reconstruction Authority) 2013. Updated data available at http://dds.information.qld.gov.au/dds/ .

Temporal and Spatial extents:

Extent group:
Temporal extent:
Start: 2012-03-28 End: 2013-10-17
Bounding box:
West bounding longitude: 138.2241
East bounding longitude: 154.2042
South bounding latitude: -29.0873
North bounding latitude: -8.0812

Data Quality

Data quality scope:
Level: dataset
Positional accuracy (external, absolute):
This is a composite dataset derived from layers of various scales.

History:

Lineage statement:
The Queensland Floodplain Assessment Overlay has been captured by analysis and visual interpretation of a combination of datasets (listed below in Sources).
Process step:
1. Identify and overview sub-basin with satellite imagery backdrop.2. Overlay ordered drainage and floodplain data.3. Analyse drainage lines within the basin to determine the drainage lines that are relevant. At a minimum drainage lines with order 1 and 2 are excluded unless known events have occurred.4. Having determined the approximate extent in terms of drainage line hierarchy, overlay the 10m contours, gauging stations and flood lines of actual events from 2011.5. Determine the approximate flood elevation at locations within the drainage basin using gauging station data and actual events, together with visual interpretation of the imagery and other layers.6. Delineate the extent of the floodplain by visually interpolating between known locations using the satellite imagery and contours as the guide.Flood extent line revised over the town of Mareeba in the Barron River Basin sub area on 17-10-2013.
Source:
1. 10m contours derived from 1 second SRTM (Shuttle Radar Topography), photogrammetry and LiDAR. In general, coverage of SRTM derived contours is west of the Great Dividing Range, Photogrammetrically derived contours coverage is over the Great Dividing Range and Cape York, LiDAR Contour coverage is the coastal fringe extending south of Cairns to the NSW border;2. Floodplain boundaries - derived by combination of Pre-clear Vegetation Mapping of Landzone 3 (Alluvium), Landzone 1 (Estuarine) and SALI Soil Flooding Limitation Mapping;3. Ordered Drainage (drainage lines);4. January 2011 Flood gauge readings and delineation of flooding events from aerial photography;5. 2009 SPOT satellite imagery;6. 2009 LandSAT satellite imagery.

Distribution

Format(s):
Name/identifier: Queensland Government Information Service
Specification: Download Service
Resource provider:
Organisation: Department of Natural Resources and Mines
Online resource:
URL/service: http://dds.information.qld.gov.au/dds/
Ordering information:
Fees: IncPrice=0; GST=0; Currency=AUD; AcctRef=0
Instructions: This data is available through the Queensland Government Information Service web site. Large orders over the download limit are burnt to DVD and posted. An additional fee applies for postage and handling.

Format(s):
Name/identifier: downloadableData
Version: 10.0
Specification: ESRI ArcGIS Server Geoportal Extension Content Type

Distributor:
Distributor:
Organisation: Department of Natural Resources and Mines
Position: opendata@dnrm.qld.gov.au
Format(s):
Name/identifier: Through the Queensland Government Information Service available as ESRI Shape file and MapInfo Tab file.

Transfer size (megabytes): 29
Online resource:
URL/service: http://dds.information.qld.gov.au/dds?title="Queenslandfloodplainassessmentoverlay"

Transfer options:
Online resource:
URL/service: Function: download

Metadata Reference Information

Hierarchy level (scope of the metadata): dataset
Identifier: {B7E40FF2-8B30-E09F-BC7B-15C853793CE2}
Parent identifier: x
Metadata date stamp: 2012-05-17
Point of contact:
Organisation: Department of Natural Resources and Mines
Position: QGIS Support
Address:
Delivery point: GPO Box 2454
City: Brisbane
State: QLD
Postcode: 4000
Country: Australia
Email: discovery@dnrm.qld.gov.au
Phone:
Voice: 61 7 3330 4440
Metadata Access Level:
Security classification (ISO 19115): unclassified
Use limitation: Public
Language: eng
Character set: utf8
Metadata standard name: ISO 19115:2005, ANZLIC ISO 1.1
Metadata version name: QGIS