 |
Metadata : Hydrogeological Map of the Northern Territory Great Artesian Basin 2013 |
Index:
Metadata Details:
Name:AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile
Version:1.0
Date Metadata Extracted:2024-04-26
Date Metadata Last Updated:2014-03-27
Current URL (HTML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=F071AAE3DB0664D1E040CD9B214452F2
Current URL (XML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=xml&metadata_id=F071AAE3DB0664D1E040CD9B214452F2
Citation
ANZLIC Identifier:F071AAE3DB0664D1E040CD9B214452F2
Title: Hydrogeological Map of the Northern Territory Great Artesian Basin 2013
Citation Date:2013-09-01
Date Type:creation
Custodian:Department of Environment, Parks and Water Security
Description
This spatial dataset, surveyed at a scale of 1:1000000, provides polygon information on the Great Artesian Basin aquifer, referred to as the J aquifer, within the Northern Territory. The map depicts the elevation and thickness of the J aquifer, in addition to groundwater elevation, flow direction and the spatial extent of artesian conditions. The purpose of the survey was to map and describe water resource information for planning and management.
- geoscientificInformation
- imageryBaseMapsEarthCover
- inlandWaters
Bounding Coordinates:
- North Bounding Coordinate:-23.345
- South Bounding Coordinate:-25.994
- East Bounding Coordinate:137.995
- West Bounding Coordinate:134.278
Dataset Status
Dataset ID:
Language:English
Character Set: Latin 1
Progress:completed
Maintenance and Update Frequency:notPlanned
Data Currency Start Date:2011-01-01
Data Currency End Date:2013-09-01
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:The aquifer extent, depth and thickness were derived from geology maps, topographic maps, processed seismic surveys, and point data from groundwater, mineral and petroleum exploration holes. Formation and groundwater depth data was converted to elevation using the SRTM 1 Second DEM-Sv1.0. The hydrology information was interpreted from standing water level measurements, flows from springs, chemical analysis of groundwater samples and surveys of outcrops of recharge beds.
The map unit boundaries polygons were digitised by rectifying original hard copy base map use in the raster and hydrology interpretations using Bentley MicroStation Design (V7) software. FME Workbench script was then used to convert the unit boundary polygons from MicroStation Design to ESRI Shape with only the Level Names as an attribute. The core water attributes are then attached to this ESRI Shape, which was then use to convert to ESRI Geodatabase, MapInfo Table and Google Earth KML.
Positional Accuracy:Positional accuracy of 1000 metres from bore locations.
Attribute Accuracy:Attributes assigned according to the dominant feature. For example, several similar geological units have been grouped to describe a particular geology. From the geology and hydrology information the hydrogeology units was delineated.
Logical Consistency:GIS editing tools were used to rectify all overshoots and undershoots in line work. Polygon topology rules applied are must not overlap, must not have gaps and each polygon has only one label.
Completeness:Complete.
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 ACTFL_RNG Actual river flow range measured at the end of the dry season ACTTDS_DESC The ACTTDS_DESC field is the actual range of groundwater TDS as specified on the map ACTYLD_RA The ACTYLD_RA field is the actual range of bore yields in Litres / seconds, as specified on the map AQUIFER The AQUIFER field describes the types of pore spaces which constitute the aquifer AQ_SCALE The AQ_SCALE field indicates the lateral extend of groundwater flow systems CODE Code reference used for spatial data file storage (followed by survey scale) FINISH_YR Year report published FLOW_DESCR Description of the river flow range measured at the end of the dry season FL_RNG_MAX Maximum river flow range measured at the end of the dry season FL_RNG_MIN Minimum river flow range measured at the end of the dry season GEO_FORM The GEO_FORM field identifies the geological formation (or other geological subdivision such as group or member) derived from the latest geological map GEO_LABEL The GEO_LABEL field is the geological label derived from the latest geology map GIS_DATA The spatial data is derived from either the original survey report or a compliation of several surveys and additional data LF_DESCR The description of the landform and soil defined by its surface form and location in the landscape META_ID ANZLIC Metadata ID META_URL Link to the on-line metadata record NAME Shortened name (usually of report) for simple reference NOTES Extra notes about water development options OPT_DESCR Description of preferred option PREFD_OPT Source of water supply REPORT Note the full report name REPORT_ID Department's Report ID REPORT_URL Link to the on-line report ROCK_TYPE The ROCK_TYPE field identifies the dominant rock types that comprise the aquifer SCALE Survey data scale for appropriate use START_YR Year survey project commenced STATUS_GIS The status of the landunit attribute descriptions available in the spatial dataset (ie GIS data) STATUS_PRJ The completion status of the project STDTDS_MAX The STDTDS_MAX field is the maximum expected Total Dissolved Solids (TDS) of the groundwater STDTDS_MIN The STDTDS_MIN field is the minimum expected Total Dissolved Solids (TDS) of the groundwater STDYLD_MAX The STDYLD_MAX field is the minimum in Litres / seconds (L/s) of the range of yield in which the majority of the bores fall STDYLD_MIN The STDYLD_MIN field is the minimum in Litres / seconds (L/s) of the range of yield in which the majority of the bores fall SUIT_CMT The comments describing the suitability of the area for surface water development SUIT_RAT Determination on the suitability for surface water development SURVEY_ID The SURVEY_ID field is the abbreviated name of the survey and the first (sometimes six) characters from the dataset file name SURVEY_NME The SURVEY_NME is the report to which the mapping refers VIABILITY Prospect of groundwater
Supplementary Information
This record maintained using the NTLIS Metadata Tool