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Metadata : Top End Communities Storm Surge Mapping, Northern Territory |
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Metadata Details:
Name:AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile
Version:1.0
Date Metadata Extracted:2024-11-22
Date Metadata Last Updated:2017-11-13
Current URL (HTML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=55CF38E393A39B0CE050CD9B214421B8
Current URL (XML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=xml&metadata_id=55CF38E393A39B0CE050CD9B214421B8
Citation
ANZLIC Identifier:55CF38E393A39B0CE050CD9B214421B8
Title: Top End Communities Storm Surge Mapping, Northern Territory
Citation Date:2017-03-01
Date Type:creation
Custodian:Department of Environment, Parks and Water Security
Description
The objective of the study is to quantify the likelihood of coastal and associated waterway areas within major remote towns and indigenous communities on the West Coast, Arnhem Land and Tiwi Islands areas being inundated by storm tide caused either by severe tropical cyclones or broad scale atmospheric influences. The study outcomes provided inundation data showing storm tide elevation depth that corresponds to a specific return period risk or ARI (Average Recurrence Interval). The provided storm tide probability levels are 100, 1,000, 2,000 and 10,000 year ARI. The inundation extent shows the total storm surge (technical terminology is storm tide) hazard risk due to tropical cyclones in terms of the ocean water level comprising the combined effects of astronomical tide plus storm surge plus wave setup for three statistical Average Recurrence Intervals (ARI) at a nearby open coast location. The Primary Storm Surge (PSS) Zone refers to the extent of inundation for a storm tide event of 100 year ARI. The Secondary Storm Surge (SSS) Zone refers to the further extent of inundation for a storm tide event of 1,000 year ARI. The Extreme Storm Surge Zone refers to the further extent of inundation for a storm tide event of 10,000 year ARI. The extent of PSS is used for land use planning. The extent of SSS is additional information for risk analysis. The extent does not include the possible effects of much localised wave run up..
- inlandWaters
Bounding Coordinates:
- North Bounding Coordinate:-10
- South Bounding Coordinate:-18
- East Bounding Coordinate:138
- West Bounding Coordinate:129
Dataset Status
Dataset ID:
Language:English
Character Set: Latin 1
Progress:completed
Maintenance and Update Frequency:notPlanned
Data Currency Start Date:2016-06-30
Data Currency End Date:2017-02-27
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 significant wave height values for the 100, 1,000, 2,000 and 10,000 year ARI were derived following the methodology closely set out in the storm tide scoping study for Major Remote Towns and Indigenous Communities - West Cost, Arnhem Cost and Tiwi Islands (GDH-SEA 2015) and includes an allowance for projected climate change impacts by the year 2100 that includes a 0.8 sea level rise and a 10% increase in the Tropical Cyclone wind speeds.
The storm surge extent boundary polygon is collected via geographic Information system (ArcGIS). 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 storm surge extents was derived from the nine Top End communities storm surge maps.
Positional Accuracy:
Attribute Accuracy:
Logical Consistency:
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 ARI Average Recurrence Interval - Return Period of the Risk and is defined as the "average" number of years between successive events of the same or greater magnitude DATA_DATE Data creation date LOCATION Study localities PRJ_YR PROJECTED YEAR - The year the inundation and HAT digital extents for the projected mean sea level. SCALE Data captured scale STUDY_DATE The date the study commenced STUDY_ID STUDY IDENTIFICATION - study identification code STUDY_NME STUDY NAME - Study name according to the technical report title
Supplementary Information
Technical Report:
NT Remote Communities Storm Tide Study and Inundation Mapping (July 2016) - Numerical Modelling and Risk Assessment
Systems Engineering Australia Pty Ltd (SEA)
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