NSW Imagery Theme – Wollongong 1955 Historical Imagery
Access API
Please Note
WGS 84 = GDA94 service
This dataset has a spatial reference of [WGS 84 =
GDA94] and can NOT be easily consumed into GDA2020 environments.
The
Wollongong 1955 imagery was flown by Adastra on 11 & 17 January 1955, using
an Eagle IX camera with a focal length of 152.4mm.
The 331 frames used in the Wollongong
1955 mosaic were aerotriangulated as one block using control points that appear
in the 1955 photography and still exist today. Coordinates and heights for these
control points were obtained from modern orthophotography and LiDAR datasets.
The Wollongong mosaic was processed and produced in GDA2020, Zone 56 coordinate
system.
The frames were mosaiced
using a semi-automated seamline generation and colourbalancing workflow. Manual
QA has been completed along every seamline and manual fixes were applied to the
orthomosaic where necessary.
Assessment of horizontal
accuracy for the Wollongong 1955 mosaic found the accuracy within urban areas
to be +/- 2m at 95% CI. Accuracy may diminish in rural areas on the outskirts
of the dataset due to lack of common control points, and issues with frame scan
quality.
Current and historic imagery form an important part of the NSW
Foundation Spatial Data Framework and provide a valuable resource which is
widely accessed by government and the broader community on a daily basis. As
the completeness of this data base continues, its market demand also increases
across a broad range of applications.
Spatial Services aerial imagery was
originally captured using a variety of cameras including the Wild RC-5, RC-10
and Leica RC-30 cameras with a variety of lenses with focal lengths of 88mm,
153mm and 304mm. Images were captured in monochrome or colour during this
period at a range of scales. Capture scales ranged from 1:5 000 to 1:80 000.
The Historical Air Photo Enhancement program (HAPE) not only
allows the capability to search, discover and use source imagery, but also
provides the delivery and viewing of enhanced historic rectified imagery
mosaics. This new development means the community at large can now access and
utilise spatially accurate historic imagery:
1. Through
the Historical
Imagery Viewer
2. Directly in a
wide range for GIS Mapping applications as a Web map Tile Service (WMTS).
See below for instructions
3. Order the JP2
Mosaics direct and use locally. Contact us via the Customer
Hub.
Accessing the WMTS in ARCMAP or
ARCPRO
Open Catalogue window
Click Catalog > GIS Servers > Add WMTS server
Specify this url:
https://portal.spatial.nsw.gov.au/tileservices/Hosted/HistoricalImagery1955/MapServer/WMTS
Click Get Layers > Ok
Double Click the HAPE Layer in the catalogue menu under the WMTS.
Drag the HAPE layer onto the map
Metadata
Content Title
Historical Imagery Wollongong City Council 1955
Content Type
Aerial Imagery
Description
Historical Aerial Photo Enhancement (HAPE) Ortho
Mosaic layer for Aerial imagery captured in 2006.
Initial Publication Date
00/00/1955
Data Currency
00/00/1955
Data Update Frequency
Other
Content
Source
Data
provider files
File Type
Imagery Layer
Attribution
.
Data
Theme, Classification or Relationship to other Datasets
NSW
Imagery Theme of the Foundation Spatial Data Framework (FSDF)
Accuracy
+/- 2m at
95% CI. Accuracy may diminish in rural areas on the outskirts of the dataset
due to lack of common control points, and issues with frame scan quality.
Spatial Reference System (dataset)
GDA94
Spatial Reference System (web service)
EPSG:4326
WGS84 Equivalent To
GDA94
Spatial
Extent
Content
Lineage
Data Classification
Unclassified
Data Access Policy
Open
Data
Quality
.
Terms and Conditions
Creative Commons
Standard
and Specification
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
Data Custodian
DCS Spatial Services
346 Panorama Ave Bathurst NSW 2795
Point of Contact
Please contact us via the Spatial Services Customer Hub
Data
Aggregator
.
Data
Distributor
Additional
Supporting Information
.
TRIM Number
.
