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Uncrewed Aircraft Systems (UAS) Multispectral Orthomosaic - Okehampton Bay, Tasmania

Created 25/06/2025

Updated 25/06/2025

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This dataset contains UAV multispectral imagery collected as part of a field trial to test the Unmanned 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 (5-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. The flights took place between 14:58 and 03:08 at a height of 80m with a flying speed set to 5 m/s. Forward and side overlaps of photographs were set to 80%.

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 5 bands (B, G, R, RedEdge, NIR). This 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. However, in the processed Orthomoasic GeoTIFF, the bands are ordered in the wavelength order (Blue, Green, Red, Red Edge, NIR).

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Additional Info

Field Value
Title Uncrewed Aircraft Systems (UAS) Multispectral Orthomosaic - Okehampton Bay, Tasmania
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/14eb4bf9-65ab-409b-bb14-00273f6c0bda
Contact Point
Terrestrial Ecosystem Research Network's Data Discovery
Arko.Lucieer@utas.edu.au
Reference Period 12/10/2021 - 12/10/2021
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    147.988415,
    -42.510957
  ],
  "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 - Okehampton Bay, 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-okehampton-bay-tasmania