ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata
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Reference System Info
Reference System Identifier
Auckland 0.075m Rural Aerial Photos Index Tiles (2022)
Index Tiles ONLY, for actual orthophotos see layer [Auckland 0.075m Rural Aerial Photos (2022)](http://data.linz.govt.nz/layer/108358)
Orthophotography within the Auckland Region captured in January and February 2022. Coverage encompasses selected rural areas north, west and south west of Auckland and parts of the Hauraki Gulf / Tīkapa Moana.
Imagery was captured for Auckland Council by AAM NZ Ltd, 6 Ossian St, Napier, New Zealand.
Data comprises: • 5620 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.
Imagery supplied as 7.5cm pixel resolution (0.075m GSD), 3-band (RGB) uncompressed GeoTIFF. The final spatial accuracy is ±0.15m at 95% confidence level in clear flat areas.
Accuracy Specifications - Field Survey: 5cm Measured Point, Basis of Estimation: Survey Methodology Used - Orthophoto (Spatial): +/- 15cm Measure Point, Basis of Estimation: Project Design
Notes On Expected Accuracy - Values shown represent 95% confidence level (2 sigma), in centimetres. - “Derived points” are those interpolated from a terrain model. - “Measured points” are those observed directly.
Data Validation – Orthophoto This data has not been field tested for accuracy. Comparison of the orthophoto with existing control points which were also used in the photo orientation process and comparison to existing orthophotos resulted in a horizontal standard error (RMS) of 0.076 m, or 0.150 m at 95% confidence. Full proof of accuracy achieved requires comparison to independent test points.