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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>

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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. 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