Metadata : Classification of the Top End and Arid Zone for Northern Territory water resources


Metadata Details:

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


Date Metadata Extracted:2023-12-12

Date Metadata Last Updated:2021-08-31

Current URL (HTML format) :

Current URL (XML format) :


ANZLIC Identifier:C3E85215917FA01BE0532144CD9B0128

Title: Classification of the Top End and Arid Zone for Northern Territory water resources

Citation Date:2021-06-04

Date Type:creation

Custodian:Department of Environment, Parks and Water Security



This polygon spatial dataset defines the Top End region and Arid Zone regions as described by the Northern Territory Water Allocation Planning Framework. The regions are also referred to as NT Water Resource Climate Zones.

The delineation uses the boundary between surface water catchments draining northwards into the Timor Sea or the Gulf of Carpentaria (Top End) and those flowing inland (Arid Zone). These regions provide guidance on whether a water resource will have the characteristics of a Top End or Arid Zone resource for water allocations, planning, management and regulation.

The zones can be viewed in NR Maps -
Under the Water heading, then Water Resources and layer named Climate zones.

ANZLIC Search Words:

Spatial Domain:

Bounding Coordinates:

Dataset Status

Dataset ID:


Character Set: Latin 1


Maintenance and Update Frequency:notPlanned

Data Currency Start Date:2021-06-04

Data Currency End Date:2021-06-04

Access Constraint:Download the spatial data package via

You are licensed to use the geospatial products on the terms and conditions set out in: Creative Commons Attribution 4.0 International Public License (CC BY 4.0) at:
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, Parks and Water Security. Copyright Northern Territory Government.

Data Quality

Lineage:The spatial layer was derived from Bureau of Metrology Geofabric (version 3.2), which was used to define the Arid Zone and the Top End regions.

Positional Accuracy:The Bureau of Meteorology Geofabric (Version 3.2) SH_Catchments and HR_Catchments data products were used to derive the Arid Zone and Top End boundary. The data have a nominal scale of 1:100,000 to 1:250,000

Attribute Accuracy:

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.



Data Requests OfficerDepartment of Environment, Parks and Water SecurityGeospatial Services Branch (on behalf of department)

Data Dictionary

AttributeAttribute DescriptionPossible CodeCode Description
01. CLIMZONEClimate Zone
02. AREA_SQKMArea in square kilometres
03. REPORTReport Name
03. REPORT_URLReport online link
04. META_IDMetadata identification
05. META_URLMetadata identification

Supplementary Information

Short, M.A. and Bond, T.W. (2021). Classification of the Top End and Arid Zone for Northern Territory water resources. Technical Report 55/2020. Water Resources Division, Northern Territory Department of Environment, Parks and Water Security, Northern Territory Government. Palmerston, Northern Territory.

This record maintained using the NTLIS Metadata Tool