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Uncrewed Aircraft Systems (UAS) Multispectral Orthomosaic - Cockatoo Hills, Tasmania

Created 01/08/2025

Updated 01/08/2025

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This dataset contains UAV multispectral imagery collected as part of a field trial to test the Uncrewed Aerial System to be used for the TERN Drone project. The UAS platform is DJI Matrice 300 RTK with 2 sensors: Zenmuse P1 (35 mm) RGB mapping camera and Micasense RedEdge-MX Dual (10-band multispectral sensor). P1 imagery were geo-referenced using the onboard GNSS in M300 and the D-RTK 2 Mobile Station. P1 Camera positions were post-processed using AUSPOS. Flight conducted between 10:26 am and 10:47 am AEDT at flying height 80 m, forward and side overlaps for Zenmuse P1 set to 80%. MicaSense RedEdge-MX Dual triggered using timer mode (every second).

Micasense multispectral sensor positions were interpolated using P1, following which a standard workflow was followed in Agisoft Metashape to generate this orthomosaic (resolution 5 cm). Reflectance calibration was performed using captures of the MicaSense Calibration Panel taken before the flight. The orthomosaic raster has the relative reflectance (no unit) for the 10 bands (Coastal Blue, Blue, Green 531, Green, Red 650, Red, RedEdge 705, RedEdge, RedEdge 740, NIR). The cloud optimised (COG) GeoTIFF was created using rio command line interface. The coordinate reference system of the COG is EPSG 7855 - GDA2020 MGA Zone 55.

In the raw data RedEdge-MX image file suffixes correspond to bands like so - 1: Blue, 2: Green, 3: Red, 4: NIR, 5: Red Edge, 6: Coastal Blue, 7: Green 531, 8: Red 650, 9: RedEdge 705, 10: RedEdge 740. However, in the processed Orthomoasic GeoTIFF, the bands 1-10 are ordered as per the Central Wavelength (Coastal Blue, Blue, Green 531, Green, Red 650, Red, RedEdge 705, RedEdge, RedEdge 740, NIR).

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Additional Info

Field Value
Title Uncrewed Aircraft Systems (UAS) Multispectral Orthomosaic - Cockatoo Hills, Tasmania
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/f9e35862-e08a-4166-8d4a-2c14118ea0a0
Contact Point
Terrestrial Ecosystem Research Network's Data Discovery
Arko.Lucieer@utas.edu.au
Reference Period 15/12/2021 - 15/12/2021
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    146.47336,
    -42.23295
  ],
  "type": "Point"
}
Data Portal Terrestrial Ecosystem Research Network

Data Source

This dataset was originally found on Terrestrial Ecosystem Research Network "Uncrewed Aircraft Systems (UAS) Multispectral Orthomosaic - Cockatoo Hills, Tasmania". Please visit the source to access the original metadata of the dataset:
https://geonetwork.tern.org.au/geonetwork/srv/eng/csw/dataset/uncrewed-aircraft-systems-uas-multispectral-orthomosaic-cockatoo-hills-tasmania