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You may use this work for commercial purposes.
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This dataset was first added to LINZ Data Service on 20 Sep 2017.
39d4b807-dafb-a7ab-0501-d3caea5fb8b9
eng
utf8
dataset
dataset
Toitū Te Whenua Land Information New Zealand
National Imagery Manager
04 4600110
155 The Terrace
Wellington
6145
New Zealand
customersupport@linz.govt.nz
pointOfContact
2017-09-12
ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata
1.1
2193
Palmerston North 0.125m Urban Aerial Photos (2015)
Orthophotography over the Palmerston North urban area taken in the flying season (summer period) 2014-15.
Imagery was captured for the ‘Palmerston North City Council’ by Aerial Surveys Ltd, Unit A1, 8 Saturn Place, Albany,0632, New Zealand.
Data comprises:
•1,021 ortho-rectified RGB GeoTIFF images in NZTM projection, tiled into the LINZ Standard 1:1,000 tile layout
•Tile layout in NZTM projection containing relevant information.
The supplied imagery is in terms of New Zealand Transverse Mercator (NZTM) map projection. The products are tiled into NZTopo50 1:1,000 tiles. Please refer to the supplied tile layout shape file for specific details, naming conventions, etc.
Imagery supplied as 12.5cm pixel resolution (0.125m GSD), 3-band (RGB) uncompressed GeoTIFF. The final spatial accuracy is ±0.2 m @ 95% confidence level in clear open spaces.
Index tiles for this dataset are available as layer [Palmerston North 0.125m Urban Aerial Photos Index Tiles (2015)](http://data.linz.govt.nz/layer/88092)
completed
Toitū Te Whenua Land Information New Zealand
National Imagery Manager
04 4600110
155 The Terrace
Wellington
6145
New Zealand
customersupport@linz.govt.nz
pointOfContact
*.xml
Unknown
unclassified
Released under Creative Commons Attribution 4.0 International
Creative Commons Attribution 4.0 International
Link: http://data.linz.govt.nz/license/attribution-4-0-international/
Attribution Required for Copies:
"Copyright in this work is owned by Palmerston North City Council."
Attribution Required for Derivative works:
"Copyright in the underlying dataset from which this work has been derived is owned by Palmerston North City Council."
copyright
Released under Creative Commons Attribution 4.0 International
Creative Commons Attribution 4.0 International
Link: http://data.linz.govt.nz/license/attribution-4-0-international/
Attribution Required for Copies:
"Copyright in this work is owned by Palmerston North City Council."
Attribution Required for Derivative works:
"Copyright in the underlying dataset from which this work has been derived is owned by Palmerston North City Council."
license
Released under Creative Commons Attribution 4.0 International
Creative Commons Attribution 4.0 International
Link: http://data.linz.govt.nz/license/attribution-4-0-international/
Attribution Required for Copies:
"Copyright in this work is owned by Palmerston North City Council."
Attribution Required for Derivative works:
"Copyright in the underlying dataset from which this work has been derived is owned by Palmerston North City Council."
copyright
Released under Creative Commons Attribution 4.0 International
Creative Commons Attribution 4.0 International
Link: http://data.linz.govt.nz/license/attribution-4-0-international/
Attribution Required for Copies:
"Copyright in this work is owned by Palmerston North City Council."
Attribution Required for Derivative works:
"Copyright in the underlying dataset from which this work has been derived is owned by Palmerston North City Council."
license
grid
1000
eng
utf8
imageryBaseMapsEarthCover
https://data.linz.govt.nz/layer/88138-palmerston-north-0125m-urban-aerial-photos-2015/
dataset
dataset
Data Acquisition
The aerial photography for this project was captured within the 2014/15 flying season (September
2014 – April 2015) on the following dates:
12rd ,18th February 2015.
All photography was captured using Vexcel's digital UCE camera and flown at:
0.125m GSD: 7887ft (2404m) flying height
Camera Lens: 100mm
Sun Angle
Minimum of +50 degrees
Urban Building Displacement Specification
Urban 0.125m GSD imagery – The CBD area has been captured with 80% forward lap and 80%
sidelap to achieve near true ortho imagery (near to no building lean).
Data Processing
All aspects of the data processing from imagery processing to DTM creation and ortho production
and product deliverables was undertaken in-house by Aerial Surveys staff.
Map Projection
All spatial data for this project provided in terms of New Zealand Transverse Mercator 2000 map
projection (NZTM2000) . The datum is New Zealand Geodetic Datum 2000 (NZGD2000). The height
datum is orthometric Moturiki 1953 (sea level).
Image Processing and Aerial Triangulation
All imagery has gone through QA checks ensuring there is no cloud cover and cloud shadow. During
aerial acquisition the aircraft on-board GPS navigation data and ground base station data collected
and post processed. Imagery processed to Level 3 and checked for colour correctness/radiometry
and even tonal balance across each project area. The aerial triangulation brings together the GPS
data and imagery using a two part process which stitches the imagery together using tie point
matching for the relative orientation phase and observing ground control points for the absolute
orientation phase. A final report is generated to check RMSE values are within specification.
DTM Source:
The digital terrain model used for this project was derived from LiDAR DTM data flown
2006 and 2009 and the existing 2012/13 photogram DTM collected by ASL. The DTM data is merged
together seamlessly and accuracy is checked to meet the ortho imagery specification. Note about
updated DTM (if applicable) needs to be added here.
RGB Ortho Specification
Ortho rectification is the process of removing (from the image) the effects of camera tip/tilt and
displacement caused by terrain relief. During this process each frame is 'draped' over the terrain
model and the photograph then becomes 'scaled' and 'levelled' in terms of true ground coordinates.
The generation of seamlines between frames follow natural physical features such as ridges, valleys,
roads and rivers. The seamlines are used for the final ortho mosaic that stitches the imagery
together using feather mosaicking techniques. The ortho imagery is then extracted aligned to LINZ
1:1000 sheet tile layout.
Released under Creative Commons Attribution 4.0 International
Creative Commons Attribution 4.0 International
Link: http://data.linz.govt.nz/license/attribution-4-0-international/
Attribution Required for Copies:
"Copyright in this work is owned by Palmerston North City Council."
Attribution Required for Derivative works:
"Copyright in the underlying dataset from which this work has been derived is owned by Palmerston North City Council."
copyright
Released under Creative Commons Attribution 4.0 International
Creative Commons Attribution 4.0 International
Link: http://data.linz.govt.nz/license/attribution-4-0-international/
Attribution Required for Copies:
"Copyright in this work is owned by Palmerston North City Council."
Attribution Required for Derivative works:
"Copyright in the underlying dataset from which this work has been derived is owned by Palmerston North City Council."
license
Released under Creative Commons Attribution 4.0 International
Creative Commons Attribution 4.0 International
Link: http://data.linz.govt.nz/license/attribution-4-0-international/
Attribution Required for Copies:
"Copyright in this work is owned by Palmerston North City Council."
Attribution Required for Derivative works:
"Copyright in the underlying dataset from which this work has been derived is owned by Palmerston North City Council."
copyright
Released under Creative Commons Attribution 4.0 International
Creative Commons Attribution 4.0 International
Link: http://data.linz.govt.nz/license/attribution-4-0-international/
Attribution Required for Copies:
"Copyright in this work is owned by Palmerston North City Council."
Attribution Required for Derivative works:
"Copyright in the underlying dataset from which this work has been derived is owned by Palmerston North City Council."
license