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Metadata : Northern Territory Groundwater - Aquifers 1:2,000,000 |
Index:
Metadata Details:
Name:AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile
Version:1.0
Date Metadata Extracted:2024-04-27
Date Metadata Last Updated:2015-06-26
Current URL (HTML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=535D1EECEB0F528AE040CD9B21446C20
Current URL (XML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=xml&metadata_id=535D1EECEB0F528AE040CD9B21446C20
Citation
ANZLIC Identifier:535D1EECEB0F528AE040CD9B21446C20
Title:Northern Territory Groundwater - Aquifers 1:2,000,000
Citation Date:2008-05-29
Date Type:creation
Custodian:Department of Environment, Parks and Water Security
Description
This spatial dataset, surveyed at a scale of 1:2,000,000, provides polygon information on the Groundwater specifically (aquifer types and yields) of the Northern Territory. The purpose of this survey was to map, describe and evaluate the water resources information for planning and management
- geoscientificInformation
- imageryBaseMapsEarthCover
- inlandWaters
Bounding Coordinates:
- North Bounding Coordinate:-10
- South Bounding Coordinate:-26
- East Bounding Coordinate:138
- West Bounding Coordinate:129
Dataset Status
Dataset ID:English
Language:English
Character Set: Latin 1
Progress:onGoing
Maintenance and Update Frequency:asNeeded
Data Currency Start Date:2008-01-01
Data Currency End Date:2015-06-26
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 units derived from NTGS 1:250,000 scale digital geology and from scanned 1:250,000 scale geology maps. Rock types with similar aquifer properties were grouped. The boundaries were then modified using water bore information. In certain areas aquifer boundaries were taken from existing groundwater maps.
The map unit boundaries polygon collected via geographic Information system (ArcGIS). Core water resources attributes attached to map units boundary with additional attributes unique to individual surveys. The ESRI Geodatabase, MapInfo Table and Google Earth KML derived using FME Workbench. The published map is derived from the ESRI Shape using Microstation Bentley MicroStation Design (V8) software.
The core attributes information associated with the groundwater, surface water and water development dataset was derived from the original map's legend and annotations. File name NT-Groundwater-Maps_2000k_L94.dgn
Positional Accuracy:Variable across the map depending on the accuracy of the original geological data and the borehole density.
Attribute Accuracy:The accuracy of the attribute information is considered medium. The bore yield information and "aquifer types" are based on "expert knowledge.
This note is relevant to the following attributes in the dataset;
'Blank or Zero in GEO_FORM, GEO_LABEL, STDTDS_MIN, STDTDS_MAX and ACTTDS_DES indicate values not defined.'
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:This spatial dataset is regularly reviewed and updated.
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_DES 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 of survey (usually of report) for simple reference NOTES Extra notes about water development options not included in the other fields OPT_DESCR Description of water supply preferred option PREFD_OPT Source of water supply code 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 maximum 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
1) REPORT
Tickell, Steve
Groundwater - Explanatory notes to the Groundwater Map of the Northern Territory (2008).
Report No 12/2008A. Department of Natural Resources, Environment & the Arts, Northern Territory.
Available to download (pdf) from the NT Library via www.territorystories.nt.gov.au/handle/10070/228493
2) MAP
The dataset is frequently reviewed. The accompanying map product is edition July 2013.
The map may be downloaded (pdf) via www.ntlis.nt.gov.au/mpds/get_file?file_id=4580
This record maintained using the NTLIS Metadata Tool