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Metadata : Clay pans of Simpson Desert, Northern Territory |
Index:
Metadata Details:
Name:AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile
Version:1.0
Date Metadata Extracted:2025-08-19
Date Metadata Last Updated:2019-11-04
Current URL (HTML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=95F091CED5390DEFE0530101007F0D96
Current URL (XML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=xml&metadata_id=95F091CED5390DEFE0530101007F0D96
Citation
ANZLIC Identifier:95F091CED5390DEFE0530101007F0D96
Title: Clay pans of Simpson Desert, Northern Territory
Citation Date:2018-06-30
Date Type:creation
Custodian:Department of Environment, Parks and Water Security
Description
This dataset is hand digitised point mapping of small clay pans (wetlands) in the area of the Simpson Desert that lies above the Northern Territory (NT) portion of the Great Artesian Basin (groundwater basin). This dataset accompanies a polygon dataset of mapped basin wetlands in the same area. Wetlands smaller than 900m2 were not digitised in the polygon mapping. In eight locations there is a very high density of small clay pans (<900m2) and these have been mapped as point features in this accompanying dataset (Water Resources Technical Report 24/2019 documents this mapping product.
- biota
- environment
- inlandWaters
Bounding Coordinates:
- North Bounding Coordinate:-23.204
- South Bounding Coordinate:-26.004
- East Bounding Coordinate:138.018
- West Bounding Coordinate:133.897
Dataset Status
Dataset ID:
Language:English
Character Set: Latin 1
Progress:completed
Maintenance and Update Frequency:notPlanned
Data Currency Start Date:2016-01-01
Data Currency End Date:2018-06-30
Access Constraint:
Download the spatial data package (contains spatial data, maps and reports) via data.nt.gov.au/
You are licensed to use the DENR geospatial products on the terms and conditions set out in: Creative Commons Attribution 4.0 International Public License (CC BY 4.0) at: creativecommons.org/licenses/by/4.0/legalcode
If you do not agree to the terms and conditions you must not use the geospatial products.
You are free to copy, communicate and adapt the licensed material, provided that you abide by the licence terms (including Attribution) and attribute the licensed material using the statement:
Supplied by the Department of Environment and Natural Resources. Copyright Northern Territory Government.
Data Quality
Lineage:Points were hand digitised, following identification of dense groups of small clay pans in Google Earth.
Processing steps:
In some areas, small clay pans were not mapped for this product either because they were smaller than the minimum size (900m2) or because there was no record of past inundation in Landsat satellite imagery. It is reasonable to assume that all these would hold water following some rain events and are therefore unmapped wetlands. Areas with a high density of these small pans (8 locations) are mapped in the companion dataset: Simpson_Desert_NT_High_Density_Claypans.
The minimum polygon size mapped was 900m2 (i.e. a Landsat pixel equal to 30m by 30m). Processing details for the accompanying polygon data are provided in the Water Resources Technical Report 24/2019.
A unique numbering code created for uniquely identifying wetland polygons (ID), based on a numbered mapping grid.
Positional Accuracy:Positional accuracy is high: all points are within the area of dense small clay pans.
Attribute Accuracy:Not applicable.
Logical Consistency:Not applicable.
Completeness:The threshold density for inclusion in this dataset was subjective. Completeness cannot be assessed until such time as mapping of clay pans smaller than 900m2 is undertaken.
Contacts
Name Organisation Position Role Phone Fax Data Requests Officer Department of Environment, Parks and Water Security Geospatial Services Branch (on behalf of department) distributor datarequests.depws@nt.gov.au
Data Dictionary
No data dictionary defined for this dataset
Supplementary Information
The mapping was part of a collaboration between the NT, South Australian and Australian governments that created and collated information about aquatic ecosystems that could potentially be impacted by utilising coal and coal seam gas resources (e.g. the Pedirka Basin coal beds). The collaborative project (now finished) was called the Lake Eyre Basin Rivers Monitoring (LEBRM) project and was co-funded by the Office of Water Science.
Water Resources Technical Report 24/2019: Mapping of Wetlands in the Northern Territory Portion of the Lake Eyre Basin (incorporating the Pedirka Geological Basin) Stage 2
This record maintained using the NTLIS Metadata Tool