Metadata : Darwin Area Storm Surge


Metadata Details:

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


Date Metadata Extracted:2023-02-02

Date Metadata Last Updated:2020-09-11

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Current URL (XML format) :


ANZLIC Identifier:A8613781B4456E53E040CD9B2144282B

Title: Darwin Area Storm Surge

Citation Date:2011-07-01

Date Type:creation

Custodian:Department of Environment, Parks and Water Security



The Darwin Area storm surge dataset with an update to the Rapid Creek area using a 5 metre cell size DEM created in 2015. Consist of 4 spatial layers modelling the extent of land subject to coastal inundation due to projected sea level in 2100.

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Spatial Domain:

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Dataset Status

Dataset ID:


Character Set: Latin 1


Maintenance and Update Frequency:notPlanned

Data Currency Start Date:2014-10-08

Data Currency End Date:2018-08-01

Access Constraint:Download the spatial data package (contains spatial data, maps and reports) via

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:

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:In 2013, the Northern Territory Department of Lands, Planning and Environment (DLPE) engaged GHD to update the storm tide mapping for the 100, 1000 and 10,000 year events using the 5 metres cell size Digital Elevation Model. The results from the 2013/2014 NT storm tide mapping update were used as input for the Rapid Creek remapping.

Positional Accuracy:The Darwin Area storm surge dataset has been computed from Tuflow inundation model. The input into the model vary in spatial accuracy and time scale. The inferred scale of use is 1: 25,000.

Attribute Accuracy:

Logical Consistency:The dataset is composed of polygon features that represent areas of potential inundation due to predicted sea level rise and storm tides. Data layers are seamless across their extent. Data layers have been visually checked to detect and remove data inconsistencies that may exist due to modelling or generalisation processing.



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

Data Dictionary

AttributeAttribute DescriptionPossible CodeCode Description
01. ObjectID or FIDField automatically generated by ArcGIS
02. ShapeField will be automatically generated and populated by ArcGIS
03. ARIIf known enter the equivalent ARI value
04. StudyScenarioIDAs defined in the StudyScenario table
05. MappingMethodMapping method used. See reference table MappingMethod
06. ReliabilityReliability of source information. See validation table [Reliability] for valid descriptors
07. SurveyorIf relevant, the surveyor or survey company engaged to capture historic flood information. This information could be useful if, at a future date, further information is required regarding the mapping method or reliability
08. StudyIDThe assigned study ID
09. CaptureDateDate of capture in the case of historic data, in format YYYYMMDD as an integer. Can leave blank if not applicable.
10. PlanNoUse the original document plan number, if known, when the mapping was from existing maps or plans, otherwise leave blank
11. ScaleScale of original documents, if information was digitised from maps or aerial imagery. May leave blank if unknown
12. ReportCodeA numeric value from 1 to n (where n is any integer) to be used where expanded report details are required. The expanded Report Details to be entered in the ReportCode table and referred here by the ReportCode and StudyID key
13. NoteCodeA numeric value from 1 to n (where n is any integer) to be used where expanded notes are required. The expanded Note to be entered in the [NoteCode] table and referred here by the NoteCode and StudyID key. A value of 0 (zero) indicates no data
14. ModifiedDateDate of revision in format YYYYMMDD as an integer
15. VersionShould be 1 for the first update, unless it is an update to the existing data
16. AreaFeature area in square kilometres
17. PerimeterPerimeter in metres. Should be updated by GIS calculation
18. ShapeLengthField will be automatically generated and populated by ArcGIS
19. Shape_AreaField will be automatically generated and populated by ArcGIS

Supplementary Information

Available formats types: ESRI Shapefile, ESRI ArcSDE export and Oracle Spatial.
Datasets available are:
Dwn18SsExtentARI100_Primary - Primary storm surge zone (100 Year ARI)
Dwn18SsExtentARI1000_Secondary - Secondary storm surge zone (1000 Year ARI)
Dwn18SsExtent ARI1000_Extreme - Extreme storm surge extent (10,000 Year ARI)

This record maintained using the NTLIS Metadata Tool