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NSW Imagery Theme Rapid Response  –  Floods Nov 2022

Rapid response imagery is captured and produced to identify visible features and terrain in order to support emergency management decision making during and after adverse natural events. In this case the imagery covers areas affected by recent flooding.

Additionally, the rapid response imagery product is used on a whole of government basis as a visible record of the landscape at a given point in time, allowing for comparative analysis to be carried out over multiple capture dates. The imagery was created by ortho-rectifying and mosaicing data from flight lines over the project area captured by Spatial Services using a Leica-Geosystems ADS80 airborne digital sensor. An ECW product is created as a Standard Colour (RGB) orthorectifed mosaic file and a JP2 file is created as a False Colour (NRG) orthorectified file. The file size depends on the individual project area, compression ratio and the number of bands that exist in the image.

As a rapid response product, this dataset meets the standards and accuracy specifications outlined in December 2016 for this product type. (see below link)

Imagery Products and Specification Description

Metadata

Type  

Esri Map Service

Update Frequency  

As Required

Contact Details  

Contact us via the Spatial Services Customer Hub

Relationship to Themes and Datasets  

Rapid Response Imagery is part of the NSW Imagery Theme of the Foundation Spatial Data Framework

Accuracy 

The horizontal accuracy of the imagery is dependent upon the resolution (GSD) of the image
The web service is built as per DFSI Spatial Services' project specification.
WMS is OGC protocol compatible and suitable for consumption by common GIS platforms

Spatial Reference System 
(dataset) 

Geocentric Datum of Australia 1994 (GDA94), Australian Height Datum (AHD)  

Spatial Reference System    
(web service)  

EPSG 4326: WGS 84 Geographic 2D  

WGS 84 Equivalent To

GDA94  

Spatial Extent  

Limited to the event area

Standards and Specifications  

Metadata AS/NZS ISO 19115-2, ANZLIC Metadata Profile v1.1 and ISO 19139
 

http://www.anzlic.gov.au/resources/anzlic-metadata-profile

Intergovernmental Committee on Surveying and Mapping (ICSM) Guidelines for Imagery

Spatial Services: Imagery Products Specification and Description

Distributors  

Service Delivery, DCS Spatial Services
346 Panorama Ave Bathurst NSW 2795

Dataset Producers and Contributors  

Administrative Spatial Programs, DCS Spatial Services
346 Panorama Ave Bathurst NSW 2795