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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 22 Aug 2022.
cd463bd0-514a-c96c-1587-d35be17c0fe3
eng
utf8
dataset
dataset
Toitū Te Whenua Land Information New Zealand
National Imagery Manager
04 4600110
155 The Terrace
Wellington
6011
New Zealand
customersupport@linz.govt.nz
pointOfContact
2022-08-09
ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata
1.1
2193
Hamilton 0.05m Urban Aerial Photos (2020-2021)
Orthophotography of Hamilton City captured in the flying season of 2020-2021. Coverage encompasses urban areas within the Hamilton City District.
Imagery was captured for Hamilton City Council by AAM NZ Ltd, 6 Ossian St, Napier, New Zealand.
Data comprises:
• 1470 ortho-rectified RGB GeoTIFF images in NZTM projection, tiled into the LINZ Standard 1:1000 tile layout
• Tile layout in NZTM projection containing relevant information.
The supplied imagery is in terms of New Zealand Transverse Mercator (NZTM) map projection. Please refer to the tile index layer for specific details, naming conventions, etc.
Imagery supplied as 5cm pixel resolution (0.05m GSD), 3-band (RGB) uncompressed GeoTIFF. The final spatial accuracy is ±0.15 at 90% confidence level in clear flat areas.
Index tiles for this dataset are available as layer [Hamilton 0.05m Urban Aerial Photos Index Tiles (2020-2021)](http://data.linz.govt.nz/layer/110134)
completed
Toitū Te Whenua Land Information New Zealand
National Imagery Manager
04 4600110
155 The Terrace
Wellington
6011
New Zealand
customersupport@linz.govt.nz
pointOfContact
notPlanned
*.xml
Unknown
unclassified
Copyright of this work is owned by Hamilton City Council © Hamilton City Council
copyright
Released by Toitū Te Whenua Land Information New Zealand under Creative Commons Attribution 4.0 International (CC BY 4.0).
Use with the following attribution: 'Sourced from the LINZ Data Service and licensed by Hamilton City Council for reuse under CC BY 4.0'
For details see: https://www.linz.govt.nz/data/licensing-and-using-data/attributing-elevation-or-aerial-imagery-data
license
grid
1000
eng
utf8
imageryBaseMapsEarthCover
ANZMet Lite Country codelist
Version 1.0
2009-03-31
http://asdd.ga.gov.au/asdd/profileinfo/anzlic-country.xml#Country
ANZLIC the Spatial Information Council
custodian
nzl
https://data.linz.govt.nz/layer/110193-hamilton-005m-urban-aerial-photos-2020-2021/
dataset
dataset
PROJECT DESIGN ACCURACY
Project specifications and technical processes were designed to achieve data accuracies as follows:
*Orthophotos*
Measured Point +/- 0.15m
Basis of Estimation: Project design
*Control*
Measured Point +/- 0.15m
Basis of Estimation: Survey methodology used
NOTES ON EXPECTED ACCURACY
Values shown are at 90% confidence interval.
LIMIATIONS OF DATA
Field/survey validation has not been undertaken
DATA VALIDATION
Imagery in the volume has been compared to control points obtained by field survey that were also used in the aero-triangulation process. The points were distributed across the area. Comparison of the field points with positions measured on the imagery result in:
No. of sites: 6
RMS X (m) 0.04
RMS y (m) 0.03
XY RMS (m) 0.05
90% Accuracy (m) 0.08
Required Accuracy (m) 0.15
SOURCE DATA
Item, Source, Description, Ref No, Date
Sensor, AAM, A3, PRJ37987, 28/12/2020 - 30/01/2021
GPS Base Data, GeoNET, CORS, PRJ37987, 28/12/2020 - 30/01/2021
Base Stn Coords, LINZ, Static RTK, PRJ37987, 28/12/2020 - 30/01/2021
Field Survey, WSP, RTK GPS, PRJ37987, 16/02/2021
DATA CHARACTERISTICS
Device Name: A3
Resolution: 5 cm
Type: 8-bit RGB
File Format: GeoTIFF
Map Projection: NZTM
Spatial Accuracy Specification: 0.15m
Capture Constraints: >40 egrees sun angle
REFERENCE SYSTEMS
Horizontal: NZGD2000 Datum, NZTM Projection
Vertical: NZVD2016/Moturiki 1953, Geoid Model: NZ Geoid 2016
Copyright is owned by Toitū Te Whenua Land Information New Zealand © LINZ
copyright
Released by Toitū Te Whenua Land Information New Zealand under Creative Commons Attribution 4.0 International (CC BY 4.0).
Use with the following attribution: "Sourced from the LINZ Data Service and licensed for reuse under CC BY 4.0"
For details see https://www.linz.govt.nz/data/licensing-and-using-data/attributing-linz-data"
license