Aerial photography was captured over Palmerston North city and outlying urban areas in the Manawatū and Palmerston North City Districts totalling approximately 330 km 2 . The area is located in the Manawatū-Whanganui Region of the North Island.
The aerial photography for this project was captured on the 01/03/2022
Camera and Flyng Height All photography was captured using Vexcel's digital UCE camera fitted with the 100 mm lens and flown at an altitude of approximately 7,887 ft (2,404 m) with the lowest ground GSD set at 0.125 m.
Imagery captured with a minimum sun angle of +40 degrees. The sun angle of the imagery used for the orthorectification ranged from 54.4 to 57.2 degrees.
The flight survey number for this project is SN14242 The standard flight plan is named ‘Palmy North Urban 12-5cm UCEV2’ and comprises 14 runs, 392 frames. Imagery captured in stereo: forward overlap 60%, min 54%; side overlap 35%, min 15%. The increased overlap flight plan is named ‘Palmy 80x80 12-5cm UCE V2’ and comprises 4 runs, 27 frames. Imagery captured in stereo: forward overlap 80%; side overlap 80%.
Imagery captured with no cloud or cloud shadow within the area of interest. Urban 0.125 m GSD imagery – using the UCE camera and by flying with 60% forward overlap and with 35% sidelap (standard stereo coverage) will achieve ~1 m building lean per 3 m height in the corners of the imagery used. Flying with 80% forward overlap and with 80% sidelap (increased stereo coverage over CBD and hospital areas) will achieve ~0.37 m building lean per 3 m height in the corners of the imagery used. Tall structures inwards of the corner of the frame will have less lean the closer to the nadir they are.
A combination of existing control and LINZ benchmarks were used for aerial triangulation for this project.