Queensland Wetland Data Version 6.0 – Wetland Lines
Date
Creation date
2023-01-31
Edition
Version 6.0
Edition date
2019-06-14
Cit Resp Party
Contact—individual name
Queensland Herbarium
Contact—organization name
Department of Environment and Science
Role
details available on request
Cit Resp Party
Contact—organization name
Department of Environment and Science
Contact—position name
Communications Officer, Queensland Wetlands Program
Role
details available on request
Additional human language abstract/description
This information is a compilation of wetland line features from the following sources: watercourse lines (a way or course through which water flows from time-to-time); and canal lines.
Resource purpose/summary
To report and monitor change in wetland extent and type.
While every care is taken to ensure the accuracy of the Information Product, the Department Environment and Science makes no representations or warranties about its accuracy, reliability, completeness or suitability for any particular purpose and disclaims all responsibility and all liability (including without limitation, liability in negligence) for all expenses, losses, damages (including indirect or consequential damage) and costs which you might incur as a result of the product being inaccurate or incomplete in any way and for any reason.
Res Const
Leg Consts
Security use limitations
While every care is taken to ensure the accuracy of the Information Product, the Department Environment and Science makes no representations or warranties about its accuracy, reliability, completeness or suitability for any particular purpose and disclaims all responsibility and all liability (including without limitation, liability in negligence) for all expenses, losses, damages (including indirect or consequential damage) and costs which you might incur as a result of the product being inaccurate or incomplete in any way and for any reason.
Unrestricted to all levels of government and community. Data is available to all government agencies, community groups and individuals. Dataset is available through physical supply and may be made available via web delivery tools, for example, through DNRME's internet sites.
Supplemental information about the data
Features within this dataset are sourced from Watercourse lines - Queensland and Canal lines - Queensland.
Those features within the drainage basins that flow into the Coral Sea are generally captured at 1:25000 mapping specifications, those features within the Fitzroy, Burdekin and Murray Darling drainage basins and those features that flow towards Lake Eyre have been captured at 1:100000 mapping specifications while those that flow into the Gulf of Carpentaria or are within Cape York Peninsula have been captured at 1:50000 mapping specifications.
Detailed wetland methodology can be viewed at: https://wetlandinfo.des.qld.gov.au/wetlands/facts-maps/wetland-background/
References
Department of Environment and Science (2022) Queensland Wetland Mapping Method: A Method to Provide Baseline Mapping of Wetland Extent Change in Queensland Version 2.0. Department of Environment and Science, Brisbane.
Dq Info
Report
Data quality report, measure description
The majority of the data is complete with all data being subject to continual update.
Report
Data quality report, measure description
Data should be free from overshoots, undershoots, duplicate lines and agree with topographic data product description requirements with a 5% error status
Report
Data quality report, measure description
The horizontal positional accuracy of the data that has been used to compile this dataset is as follows: Orthophotography +/- 1m, Satellite Imagery +/- 2.5m, Geoscience Australia 1:250000 Data +/- 20m. This dataset is GDA2020 compatible. The source data, and therefore the captured features are georeferenced as GDA94 (horizontal only). The horizontal accuracy of the geo-referencing and/or data collection method for this example is greater than the datum offset between GDA94 and GDA2020 (1.8 meters). The resulting dataset has been nominated as a low-accuracy GDA2020 dataset. As this data has not directly measured in GDA2020, nor transformed to GDA2020 the resulting data is 'GDA2020 Compatible', not Compliant.
Report
Data quality report, measure description
Attribution is completed in accordance with Qld Dept of Natural Resources and Mines, Digital Topographic Data Specifications
Data Lineage
Lineage statement, a general explanation
Queensland Wetland Data – Wetland lines is derived from the Department of Resources produced Watercourse lines, and Canal lines datasets.
The Watercourse Lines - Queensland dataset was compiled as part of a collaborative program between the Queensland Government and Geoscience Australia to upgrade the states hydrographic data for inclusion in the national hydro geospatial fabric.
The original data that this dataset has been compiled from was scanned from topographic repromats, captured by photogrammetry, digitised from satellite imagery or orthophotography or taken from Geoscience Australia 250000 topographic datasets with reliability dates ranging from 1978 to 2005. This original data was spatially updated between 2010 and the start of 2014 using the best available imagery over the area, 10cm - 60cm orthophotography along much of the east coast to 2.5m satellite imagery over the interior, the Gulf of Carpentaria and Cape York Peninsula.
Original data was compared to current imagery and updated (moved to correct position, deleted as the feature no longer exits or added as the feature is new). Linear features within the data have been concatenated and segmented at intersections and flow directed down-stream to assist with hydrological modelling. Canal lines where applicable merge with watercourse lines.
As part of the collaborative agreement between the Queensland Government and Geoscience Australia, both organisations undertook to update the features within allocated drainage basins. Those drainage basins updated by the Queensland Government were updated using Microstation Geographics V8 in MGA94 (GDA94) before the data was transformed to Latitude/Longitude (GDA94). Geoscience Australia undertook their update process using ESRI ArcGIS V9 or V10. The Queensland Government was responsible for merging all basins into a whole of state dataset stored within an ESRI Geodatabase that agrees with the Geoscience Australia Topographic Database Schema in Latitude/Longitude (GDA94).
The data is continually being updated using higher resolution imagery and LiDAR data. Information received from stakeholders and feedback from the community is also incorporated. In 2018 a program was undertaken to attribute features that would comprise a consistent state-wide 100k network within the single multi-scale dataset for use in vegetation management. This 100k network is also stream ordered using the Strahler method. A small number of basins flowing into the Gulf of Carpentaria are not yet stream ordered but are to be completed by early 2019.
Department of Environment, Science and Innovation, Queensland (n.d.) Wetland line – spatial metadata, WetlandInfo website, accessed 30 August 2024. Available at: https://wetlandinfo.des.qld.gov.au/wetlands/facts-maps/get-mapping-help/metadata/wetland/2019/wetland-line/
— Department of Environment, Science and Innovation