Access AVAILABLE FORMAT TYPE(S) 1. Online Digital Data and Map Products via WetlandInfo and the Queensland Globe 2. Digital data available as a ESRI Shapefile, ESRI Geodatabase and ESRI Geodatabase Export download
Cit Resp Party
Contact—organization name
Queensland Herbarium, Department of Environment and Science
Surface expression GDEs are ecosystems that are dependent on the discharge of groundwater on a permanent or intermittent basis to meet all or some of their water requirements so as to maintain their communities of plants and animals, ecological processes and ecosystem services. Surface expression GDE point features include spring wetlands. Information about the location and extent of known and potential GDEs was sourced from expert knowledge,field surveyliterature and existing datasets. This dataset is one of five datasets that describe the distribution of known and potential GDEs across the landscape. The complete set of GDE datasets is: 1. Surface expression GDE points, 2. Surface expression GDE lines, 3. Surface expression GDE areas, 4. Terrestrial GDE areas, 5. Subterranean GDE areas. As the different types of GDEs represent different overlapping layers or cross-sections of the landscape, it is recommended that the datasets be mapped in the order of listing shown above (i.e. surface expression GDE points on top) to maintain logical consistency and assist visualization.
Version 1.0 (released October 2012) - mapping covers the whole of Queensland
Version 1.1 (released May 2013) - updated mapping covers the whole of Queensland
Version 1.2 doesnot exist
Version 1.3 (released July 2015) - updated mapping covers the whole of Queensland and includes significant updates to attribution
Version 1.4 (released December 2015) - no change from version 1.3
Version 1.5 (released March 2017) - mapping covering the whole of Queensland improved.
Version 1.5.1 (released in May 2018) - mapping attribution revised to update hyperlinks to supporting material delivered via webpages.
Unrestricted to all levels of government and community. Dataset 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 the Queensland Department of Environment and Science internet site.
Dq Info
Report
Data quality report, measure description
This dataset reflects the level of knowledge and information about the landscape that may be biased due to a range of reasons such as accessibility and land use: It is likely that the dataset is incomplete. Detailed field survey and verification of the groundwater location, extent and fluctuation has been done for most GDE points but not all.
Report
Data quality report, measure description
The GDE attribution was sourced from the Queensland Springs database. The reliability of different attribute values may vary. Field sampled GDE points are attributed as known GDEs. Those that have not been field sampled are attributed as derived - low confidence.
Report
Data quality report, measure description
The positional accuracy of field sampled GDE points is high (+/- 1 metre). Unsampled GDE points have a lower positional accuracy typically +/- 1 kilometre. For more information refer to the Queensland Springs Database metadata.
Entity and Attribute Information
details available on request
This page should be cited as:
Department of Environment, Science and Innovation, Queensland (n.d.) Surface expression GDE (points) – spatial metadata, WetlandInfo website, accessed 30 August 2024. Available at: https://wetlandinfo.des.qld.gov.au/wetlands/facts-maps/get-mapping-help/metadata/gde/surface-point/
— Department of Environment, Science and Innovation