ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata
Metadata Standard Version
1.1
Reference System Info
Reference System
Reference System Identifier
Identifier
Code
2193
Identification Info
Data Identification
Citation
Citation
Title
Hawke's Bay 0.3m Rural Aerial Photos (2019-2020)
Date
Abstract
Orthophotography over the Hawke's Bay Region taken in the flying seasons (summer periods) 2018-2019 and 2019-2020. The area of capture covers the Hawke's Bay Region situated on the east coast of the North Island, totalling approximately 15,470 km2.
Imagery was captured for Hawke's Bay Local Authority Shared Services (HBLASS) by Aerial Surveys Ltd, Unit A1, 8 Saturn Place, Albany,0632, New Zealand.
Data comprises: •1888 ortho-rectified RGB GeoTIFF images in NZTM projection, tiled into the LINZ Standard 1:5,000 tile layout •Tile layout in NZTM projection containing relevant information.
The supplied imagery is in terms of New Zealand Transverse Mercator (NZTM) map projection. Please refer to the supplied tile layout shape file for specific details, naming conventions, etc.
Imagery supplied as 30cm pixel resolution (0.30 m GSD), 3-band (RGB) uncompressed GeoTIFF. The final spatial accuracy is ±0.5 m @ 90% confidence level.
Index tiles for this dataset are available as layer [Hawke's Bay 0.3m Rural Aerial Photos Index Tiles (2019-2020)](http://data.linz.govt.nz/layer/105294)
Released by LINZ under Creative Commons Attribution 4.0 International (CC BY 4.0) with: Following Attribution: "Sourced from the LINZ Data Service and licensed by Hawke's Bay Local Authority Shared Services (HBLASS) 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
Data Acquisition The aerial photography for this project was captured within the 2018-2019 flying season (September 2018 – 30 March 2019) and extended to end of April 2019 and further extended to 16 May 2019 and then again to 25 January 2020.
Camera and Flying Height For this project two cameras were used as follows: Photography captured using Vexcel's digital UCE camera fitted with the 100mm lens and flown at an altitude of approximately 18,928 ft (5,769 m) with the lowest ground GSD set at 0.3m. Photography captured using Vexcel's digital UCE camera fitted with the 80mm lens and flown at an altitude of approximately 16,580 ft (5,053 m) with the lowest ground GSD set at 0.3m.
Capture Dates The aerial imagery was captured on the following dates: 30 January 2019, 5 February 2019, 5-7 March 2019, 20 April 2019, 25 January 2020.
Sun Angle Imagery captured with a minimum sun angle of 40 degrees. Towards the end of the season the sun angle was lowered to a minimum of 35 degrees and further lowered to a minimum of 30 degrees over a defined area. The sun angle of the imagery used for the orthorectification ranged from 30.3 to 67.2 degrees. The imagery captured on 14 May 2019 was rejected by Council due to the low sun angle and was reflown on 25 January 2020 with replacement tiles supplied.
Flight Planning The Flight Survey Number for this project is SN14019 Hawke's Bay Rural comprising 82 runs and 4,487 frames. All imagery captured in Stereo: Forward overlap 60%, min 54%. Side overlap 35%, min 15%.
Environmental Specification Imagery captured with no cloud or cloud shadow within the area of interest. Harbour, coastal and tidal areas captured within 1.5 hours either side of low tide. Ngaruroro, Tukituki and Wairoa Rivers captured with specified flow rates. A coastal strip north of Waipatiki Beach was captured outside the low tide restriction and this area is noted for refly and replacement tiles to be supplied.
Released by LINZ under Creative Commons Attribution 4.0 International (CC BY 4.0) with: 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
