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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 |
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Spatial Reference System | Geocentric Datum of Australia 1994 (GDA94), Australian Height Datum (AHD) |
Spatial Reference System | EPSG 4326: WGS 84 Geographic 2D |
WGS 84 Equivalent To | GDA94 |
Spatial Extent | Limited to the event area |
Standards and Specifications |
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 |
Dataset Producers and Contributors | Administrative Spatial Programs, DCS Spatial Services |