Metadata : Water Resources of the North East Bathurst Island

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Metadata Details:

Name: AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile

Version: 1.0

Date Metadata Extracted: 2020-09-23

Date Metadata Last Updated: 2016-04-19

Current URL (HTML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=30CD97BCBBBAC006E050CD9B21443E51

Current URL (XML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=xml&metadata_id=30CD97BCBBBAC006E050CD9B21443E51


Citation

ANZLIC Identifier: 30CD97BCBBBAC006E050CD9B21443E51

Title: Water Resources of the North East Bathurst Island

Citation Date: 2014-12-01

Date Type: creation

Custodian: Department of Environment and Natural Resources


Description

Abstract:

A preliminary land, water and biodiversity investigation in late 2013 identified several areas across the Tiwi Islands as potentially suitable for agricultural land. The area targeted for detailed survey was selected in collaboration with other Northern Territory Government departments and traditional owners.

The resulting study area targeted an area of 14 000 ha on north east Bathurst Island. The associated technical report describes the bio-physical resources for the study area, including; geology, geomorphology, groundwater, surface water, land resources, flora, fauna and crop suitability.

This spatial dataset, surveyed at a scale of 1:25,000, provides polygon information on the Groundwater and Surface water map unit of the Water Resources of NE Bathurst Island, Northern Territory. The purpose of this survey was to map, describe and evaluate the water resources information for planning and management.

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Spatial Domain:

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Dataset Status

Dataset ID:

Language: English

Character Set: Latin 1

Progress: completed

Maintenance and Update Frequency: notPlanned

Data Currency Start Date: 2014-01-01

Data Currency End Date: 2015-02-10

Access Constraint:

Download the spatial data package (contains spatial data, maps and reports) via https://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: https://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 original Groundwater and Surface Water map unit boundaries were derived from geology maps, topographic maps, aerial photographs and stereoscope interpretation and satellite imagery interpretation. 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 (V8) 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.

The core attributes information associated with the groundwater and surface water dataset was derived from the original map's legend and annotations. File name Tiwi-Is_NE-Bath_Water-Resources_m52.dgn.

Positional Accuracy: Positional accuracy of 25 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. Several bore sites describing yield or chemistry information have been grouped to describe a particular hydrology. 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

NameOrganisationPositionRolePhoneFaxEmail
Data Requests OfficerDepartment of Environment and Natural ResourcesGeospatial Services Branch, Water Resources Divisiondistributordatarequests.denr@nt.gov.au

Data Dictionary

AttributeAttribute DescriptionPossible CodeCode Description
ACTFL_RNGActual river flow range measured at the end of the dry season
ACTTDS_DESCThe ACTTDS_DESC field is the actual range of groundwater TDS as specified on the map
ACTYLD_RAThe ACTYLD_RA field is the actual range of bore yields in Litres / seconds, as specified on the map
AQUIFERThe AQUIFER field describes the types of pore spaces which constitute the aquifer
AQ_SCALEThe AQ_SCALE field indicates the lateral extend of groundwater flow systems
FLOW_DESCRDescription of the river flow range measured at the end of the dry season
FL_RNG_MAXMaximum river flow range measured at the end of the dry season
FL_RNG_MINMinimum river flow range measured at the end of the dry season
GEO_FORMThe GEO_FORM field identifies the geological formation (or other geological subdivision such as group or member) derived from the latest geological map
GEO_LABELThe GEO_LABEL field is the geological label derived from the latest geology map
NOTEThe NOTE field is for any further information about aquifer or groundwater properties not included in the other fields
ROCK_TYPEThe ROCK_TYPE field identifies the dominant rock types that comprise the aquifer
STDTDS_MAXThe STDTDS_MAX field is the maximum expected Total Dissolved Solids (TDS) of the groundwater
STDTDS_MINThe 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_MINThe STDYLD_MIN field is the minimum in Litres / seconds (L/s) of the range of yield in which the majority of the bores fall
SURVEY_IDThe SURVEY_ID field is the abbreviated name of the survey and the first (sometimes six) characters from the dataset file name
SURVEY_NMEThe SURVEY_NME is the report to which the mapping refers to

Supplementary Information

TECHNICAL REPORT: Department of Land Resource Management (2015)
Tiwi Island Economic Development - Bio-Physical Resources of North East Bathurst Island (Technical Report)
Technical Report Number 12/2014/D; Department of Land Resource Management, Darwin, NT. ISBN-1-74350-072-6

SUMMARY REPORT: Department of Land Resource Management (2015)
Tiwi Island Economic Development - Bio-Physical Resources of North East Bathurst Island (Summary Report)
Technical Report Number 11/2014/D; Department of Land Resource Management, Darwin, NT. ISBN 1-74350-071-8

This record maintained using the NTLIS Metadata Tool