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Metadata : SREBA Beetaloo Aquatic Ecosystems |
Index:
Metadata Details:
Name:AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile
Version:1.0
Date Metadata Extracted:2025-05-10
Date Metadata Last Updated:2023-04-18
Current URL (HTML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=F43B2402CFA56CE7E0532144CD9B65EF
Current URL (XML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=xml&metadata_id=F43B2402CFA56CE7E0532144CD9B65EF
Citation
ANZLIC Identifier:F43B2402CFA56CE7E0532144CD9B65EF
Title: SREBA Beetaloo Aquatic Ecosystems
Citation Date:2022-12-21
Date Type:creation
Custodian:Department of Environment, Parks and Water Security
Description
This dataset presents the results of aquatic ecosystems mapping for the Study Area. This includes the distribution and extent of lacustrine, palustrine, riverine and floodplain systems, and the locations of aquatic ecosystems that are considered to be dry season refugia.
Details of the mapping methods and results are reported in: Department of Environment, Parks and Water Security (2022). Aquatic Ecosystems Baseline Report: Strategic Regional Environmental and Baseline Assessment for the Beetaloo Sub-basin. Flora and Fauna Division, Department of Environment, Parks and Water Security, Northern Territory Government. Berrimah, Northern Territory. Technical Report 30/2022.
- biota
- environment
Bounding Coordinates:
- North Bounding Coordinate:-14.6938697638196
- South Bounding Coordinate:-18.1087024008052
- East Bounding Coordinate:135.670637654895
- West Bounding Coordinate:131.633403252384
Dataset Status
Dataset ID:
Language:English
Character Set: Latin 1
Progress:completed
Maintenance and Update Frequency:asNeeded
Data Currency Start Date:2022-12-21
Data Currency End Date:2022-12-21
Access Constraint:
Data Quality
Lineage:The Australian National Aquatic Ecosystem structure was adopted to map and identify major aquatic surface water systems, including lacustrine, palustrine, riverine and floodplain systems.
The extent and distribution of these aquatic ecosystems were mapped for the study area using a remote sensing approach.
The following datasets were used to map the extent and distribution of surface water systems across the study area:
- Geoscience Australia Landsat Water Observation Statistics Collection 3
- Geoscience Australia Landsat Waterbodies Collection 3
- Maximum Extent of Surface Water
- Australian Hydrological Geospatial Fabric (Geofabric) v3.2
- Woody foliage projective cover model 2020 annual composite
Decision rules were developed and applied to the spatial data. These rules provide a robust and repeatable framework for aquatic ecosystem mapping and are consistent with those previously applied for wetland mapping in Queensland and northern Australia. Following application of the decision rules, riverine, lacustrine, palustrine and floodplain systems mapped from the remote sensing data were combined into a flat spatial layer (raster format). This output layer should be used in conjunction with the Geofabric mapped streams (polyline format) and springs data (point format) to obtain the best overall representation of aquatic ecosystems in the study area.
Positional Accuracy:Mapping is based on Landsat data with a pixel resolution of 30 m x 30 m. The spatial data is relevant to a scale of 1:100,000.
Attribute Accuracy:The aquatic ecosystems should be considered a reconnaissance level of investigation due to the limited amount of field survey undertaken to support the mapping.
Logical Consistency:
Completeness:Version 1 of this spatial dataset is considered complete. If amendments are made to this dataset, a new version will be released.
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
Attribute Attribute Description Possible Code Code Description 01. aeco_100 - SREBA Aquatic Ecosystems 01a. Value Pixel value representing different aquatic ecosystem types 01b. Count Count of pixels for a given Value 01c. AquaEco Aquatic ecosystem type 01d. SURVEY_NME Survey name 01e. SURVEY_ID Survey identification code 02. aeco_100_refugia - Refugia points 02a. SURVEY_NME Name of survey 02b. SURVEY_ID Survey identification code 02c. WOdryMax Maximum value from Landsat Water Observation Statistics Collection 3 data - April to October, 1986-2021 02d. FieldObs Field observation of the water regime 02e. Source Source of the data for WOdryMax and FieldObs attributes 02f. Comments Comments related to the refugia point 03. AHGHFMappedStream_SREBA These data are mapped streams clipped to the Study Area, sourced from the MappedStreams dataset within the Australian Hydrological Geospatial Fabric (Geofabric) v3.2 (Australian Government Bureau of Meteorology 2015).
Geofabric attributes are described in the Product Guide: www.bom.gov.au/water/
geofabric/documentation.shtml04. AHGHFMappedStream_SREBArefugia These data are a selection of mapped streams that represent likely refugia, sourced from the MappedStreams dataset within the Australian Hydrological Geospatial Fabric (Geofabric) v3.2 (Australian Government Bureau of Meteorology 2015).
Geofabric attributes are described in the Product Guide: www.bom.gov.au/water/
geofabric/documentation.shtml05. ntspr_2M_SREBA These data are spring locations within the Study Area, sourced from the 'Springs of the Northern Territory' database (Northern Territory Government 2019).
Attributes are described in the Springs of the Northern Territory metadata page: www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=E9D78F668FC02B33E040CD9B214403C3
Supplementary Information
This record maintained using the NTLIS Metadata Tool