{ "culture": "en-NZ", "name": "", "guid": "", "catalogPath": "", "snippet": "AAM was engaged by Bay of Plenty Regional Council to undertake acquisition and processing of Imagery over Maketu & Little Waihi and Frost Flats Heathlands. This dataset is supplied in NZTM2000 map projection, in terms of NZGD2000. DEM heights are in NZVD2016 vertical datum. Accuracy is within 0.2m of their true position, 90% confidence. This tile index contain all the tiles supplied by AAM during the 2020 flight season under contracts PRJ36500NON01/02.", "description": "

Please read Project Reports <\/SPAN>PRJ36500NON01<\/SPAN> <\/SPAN>(Objective Ref: <\/SPAN>A3550027<\/SPAN><\/A>) and <\/SPAN>PRJ36500NO<\/SPAN>N02<\/SPAN> <\/SPAN>(Objective Ref: <\/SPAN>A3550026<\/SPAN><\/A>) for complete metadata.<\/SPAN><\/P>

<\/P>

Acquisition<\/SPAN> <\/SPAN>(<\/SPAN>PRJ36500NON01<\/SPAN>- Kaituna Wetland, Maketu, Little Waihi<\/SPAN>)<\/SPAN>: <\/SPAN><\/P>

Acquisition of Imagery occurred on 20th January 2020, airborne LiDAR data was<\/SPAN> <\/SPAN>captured concurrently with the Imagery and used as the orthophoto DEM. Trajectories supplied<\/SPAN> <\/SPAN>in the ancillary folder of this volume contain date and time information specific to the areas<\/SPAN> <\/SPAN>supplied.<\/SPAN><\/P>

<\/P>

Acquisition<\/SPAN> <\/SPAN>(<\/SPAN>PRJ36500NO<\/SPAN>N02 - Frost flats)<\/SPAN>: <\/SPAN><\/P>

Acquisition of Imagery occurred on 23rd, 25th, 27th January and 3rd February 2020.<\/SPAN> <\/SPAN>Airborne LiDAR data was captured concurrently with the Imagery and used as the orthophoto<\/SPAN> <\/SPAN>DEM. Trajectories supplied in the ancillary folder of this volume contain date and time<\/SPAN> <\/SPAN>information specific to the areas supplied.<\/SPAN><\/P>

<\/P>

Ground Support: <\/SPAN><\/SPAN><\/P>

RTX processing was used to calculate the GPS trajectory solution. Trimble<\/SPAN> <\/SPAN>CenterPointR RTX™ is a proprietary GPS, GLONASS, BeiDou, and QZSS enabled technology<\/SPAN> <\/SPAN>that provides high-accuracy GNSS positioning worldwide without the use of traditional local<\/SPAN> <\/SPAN>base stations or a VRS network. By combining real-time data from a global reference station<\/SPAN> <\/SPAN>infrastructure with innovative positioning and compression algorithms, Trimble RTX technology<\/SPAN> <\/SPAN>computes centimeter-level positions based on satellite orbit and clock information.<\/SPAN> <\/SPAN>Ground control was surveyed by Sounds Surveying in early 2019 was used to assist in control<\/SPAN> <\/SPAN>for the imagery.<\/SPAN><\/P>

<\/P>

Data Processing: <\/SPAN><\/SPAN><\/P>

The RGB orthophotos are supplied at 10cm gsd. The imagery was<\/SPAN> <\/SPAN>georeferenced with airborne reference data and surveyed ground control, using aero<\/SPAN> <\/SPAN>triangulation. Ortho-rectification utilised the LiDAR digital terrain model, and a combination of<\/SPAN> <\/SPAN>automated and manual seamline placement.<\/SPAN> <\/SPAN>Laser strikes were classified into default, ground using a single algorithm across the project<\/SPAN> <\/SPAN>area. No manual editing was performed. The ground points were used for orthorectification of<\/SPAN> <\/SPAN>the imagery, and supplied in this volume as DEM.<\/SPAN><\/P><\/DIV><\/DIV><\/DIV>", "summary": "AAM was engaged by Bay of Plenty Regional Council to undertake acquisition and processing of Imagery over Maketu & Little Waihi and Frost Flats Heathlands. This dataset is supplied in NZTM2000 map projection, in terms of NZGD2000. DEM heights are in NZVD2016 vertical datum. Accuracy is within 0.2m of their true position, 90% confidence. This tile index contain all the tiles supplied by AAM during the 2020 flight season under contracts PRJ36500NON01/02.", "title": "AerialPhoto_2020", "tags": [ "Tile Index", "2020", "Aerial Photo", "Imagery", "Extent", "Kaituna wetland", "Maketu", "Little Waihi", "Frost flats" ], "type": "", "typeKeywords": [], "thumbnail": "", "url": "", "minScale": 150000000, "maxScale": 5000, "spatialReference": "", "accessInformation": "AAM, Bay of Plenty Regional Council", "licenseInfo": "", "portalUrl": "" }