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Metadata : Northern Territory - 1 in 100 Year Flood Extent |
Index:
Metadata Details:
Name:AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile
Version:1.0
Date Metadata Extracted:2025-04-25
Date Metadata Last Updated:2021-02-24
Current URL (HTML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=BC0B336210224DDCE0530101007F7550
Current URL (XML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=xml&metadata_id=BC0B336210224DDCE0530101007F7550
Citation
ANZLIC Identifier:BC0B336210224DDCE0530101007F7550
Title: Northern Territory - 1 in 100 Year Flood Extent
Citation Date:2020-03-24
Date Type:creation
Custodian:Department of Environment, Parks and Water Security
Description
Polygon data delineating modelled statistical flood extent with an Annual Exceedance Probability (AEP) of 100 years. Also known as the 1 in 100 year flood layer, it used for municipality planning and risk assessment. This data contains a group of layers depicting a range of statistical AEP extents from all flood studies in the Northern Territory. The data is statically derived using hydrological models, historic flood extents and heights.
- inlandWaters
Bounding Coordinates:
- North Bounding Coordinate:-10
- South Bounding Coordinate:-26
- 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:2020-03-24
Data Currency End Date:2020-03-24
Access Constraint:You are licensed to use this publication on the terms and conditions set out in Creative Commons Attribution 4.0 International Public License https://creativecommons.org/licenses/by4.0/legalcode, (c) Northern Territory Government, Department of Environment, Parks ann Water Security
Data Quality
Lineage:Primary
Positional Accuracy:Data captured at scale ranging from 1:5,000 to 1:25,000 at precision 0.5 metre.
Topographic map horizontal accuracy is within 0.5mm at source map scale of 1:2500. Vertical accuracy is 90% of elevation are correct to within half a contour interval as source map scale of 1:2500 on the 1:2500 scale map the horizontal accuracy is 1.25 metres
Attribute Accuracy:Attributes are verified and should be accurate. Overall reliability of the source material is indicated in Reliability field, where HIGH is good and LOW is poor quality source information. This data is suitable to use at township and parcel level. Reliability field provides clues to the accuracy, where a value of 1 is best and 3 is worst.
Logical Consistency:Attributes are consistent with other related layers, e.g. flood height contours
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 01. AEP Annual Exceedance Probability. The likelihood of occurrence of a flood of given size or larger size occurring in any one year, usually expressed as a percentage (%). 02. StudyScenarioID Unique entry of the event type or scenarios relating to the products produced as part of the project or a study. 03. MappingMethod A list of mapping methods. 04. Surveyor The surveyor or survey company engaged to capture historic flood information. 05. StudyID The assigned study ID 06. CaptureDate Date of model ran for output. 07. Scale Scale of original documents from maps, aerial imagery and digital imagery interpretation. 08. ReportCode Captures reports details relating to the study. 09. Area Feature area in square kilometres.
Supplementary Information
Refer to individual flood study mapping report and map for more information.
This record maintained using the NTLIS Metadata Tool