Uncrewed Aircraft Systems (UAS) Multispectral Orthomosaic - Okehampton Bay, Tasmania
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 <a href=" https://www.ga.gov.au/scientific-topics/positioning-navigation/geodesy/auspos ">AUSPOS</a>. 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%.
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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.
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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).
Simple
Identification info
- Date (Creation)
- 2021-11-08
- Date (Publication)
- 2021-12-13
- Date (Revision)
- 2024-05-12
- Edition
- 1.0
Publisher
Author
School of Geography, Planning, and Spatial Sciences, University of Tasmania - Lucieer, Arko (Associate Professor of Geography and Spatial Sciences)
Churchill Avenue, Hobart, Tasmania, 7005, Australia
Hobart
Tasmania
7005
Australia
Co-author
University of Tasmania - Sivanandam, Poornima ()
Churchill Avenue, Hobart, Tasmania, 7005, Australia
Hobart
Tasmania
7005
Australia
Co-author
University of Tasmania - Turner, Darren ()
Churchill Avenue, Hobart, Tasmania, 7005, Australia
Hobart
Tasmania
7005
Australia
- Website
- https://www.tern.org.au/
- Purpose
- The main purpose of collecting this data was to test and establish data processing protocols for the M300 RTK system. The onboard GNSS system enables direct georeferencing, and potentially removes the need for ground control points. The purpose of generating this orthomosaic data product was to test the data upload capacity with TERN Data Services team.
- Credit
- We at TERN acknowledge the Traditional Owners and Custodians throughout Australia, New Zealand and all nations. We honour their profound connections to land, water, biodiversity and culture and pay our respects to their Elders past, present and emerging.
- Credit
- This work was funded by the Terrestrial Ecosystem Research Network (TERN), an Australian Government National Collaborative Research Infrastructure Strategy (NCRIS) project. Data was collected and processed by the Department of Geography, Planning and Spatial Sciences at the University of Tasmania.<br><br>
- Status
- Completed
Point of contact
School of Geography, Planning, and Spatial Sciences, University of Tasmania - Lucieer, Arko (Associate Professor of Geography and Spatial Sciences)
Churchill Avenue, Hobart, Tasmania, 7005, Australia
Churchill Avenue
Hobart
Tasmania
7005
Australia
Point of contact
University of Tasmania - Sivanandam, Poornima ()
Churchill Avenue, Hobart, Tasmania, 7005, Australia
Churchill Avenue
Hobart
Tasmania
7005
Australia
Point of contact
University of Tasmania - Turner, Darren ()
Churchill Avenue, Hobart, Tasmania, 7005, Australia
Churchill Avenue
Hobart
Tasmania
7005
Australia
- Topic category
-
- Environment
Extent
- Description
- Okehampton Bay, Tasmania, Australia. Test site for TERN Drone field trial.
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Temporal extent
- Time period
- 2021-10-12 2021-10-12
- Maintenance and update frequency
- Not planned
- GCMD Science Keywords
- ANZSRC Fields of Research
- TERN Platform Vocabulary
- TERN Instrument Vocabulary
- TERN Parameter Vocabulary
- QUDT Units of Measure
- GCMD Horizontal Resolution Ranges
- GCMD Temporal Resolution Ranges
- Keywords (Discipline)
-
- UAV
- Drone
Resource constraints
- Use limitation
- The Creative Commons Attribution 4.0 International (CC BY 4.0) license allows others to copy, distribute, display, and create derivative works provided that they credit the original source and any other nominated parties. Details are provided at https://creativecommons.org/licenses/by/4.0/
- File name
- 88x31.png
- File description
- CCBy Logo from creativecommons.org
- File type
- png
- Title
- Creative Commons Attribution 4.0 International Licence
- Alternate title
- CC-BY
- Edition
- 4.0
- Access constraints
- License
- Use constraints
- Other restrictions
- Other constraints
- TERN services are provided on an “as-is” and “as available” basis. Users use any TERN services at their discretion and risk. They will be solely responsible for any damage or loss whatsoever that results from such use including use of any data obtained through TERN and any analysis performed using the TERN infrastructure.<br /><br />Web links to and from external, third party websites should not be construed as implying any relationships with and/or endorsement of the external site or its content by TERN.<br /><br />Please advise any work or publications that use this data via the online form at https://www.tern.org.au/research-publications/#reporting
- Other constraints
- Please advise any work or publications that use this data via the online form at https://www.tern.org.au/research-publications/#reporting
- Other constraints
- Please cite this dataset as {Author} ({PublicationYear}). {Title}. {Version, as appropriate}. Terrestrial Ecosystem Research Network. Dataset. {Identifier}.
Resource constraints
- Classification
- Unclassified
Distribution Information
Distributor
Distributor
Terrestrial Ecosystem Research Network
80 Meiers Road, Indooroopilly, Queensland, 4068, Australia
Indooroopilly
Queensland
4068
Australia
- Distribution format
-
- OnLine resource
- Orthomosaic
- OnLine resource
- Raw Data
- OnLine resource
- ro-crate-metadata.json
Data quality info
- Hierarchy level
- Dataset
- Other
- M300 RTK onboard GNSS used with D-RTK 2 Mobile station was used for georeferencing. Additional control point of the D-RTK Base station added to reduce vertical offset error. Direct georeferencing assessed using Ground Control Point (GCP) panels and Propellor Aeropoints (Leica GS14 used to record GCP coordinates). Raw imagery were processed in Agisoft Metashape. Reflectance calibration was performed using captures of the MicaSense Calibration Panel taken before the flight.
Report
Result
- Statement
- Check point accuracy: planimetric: 10 cm, vertical: 65 cm
Resource lineage
- Statement
- Raw data was collected using the Zenmuse P1 RGB mapping camera in a DJI M300 RTK UAS platform. The images were processed in Agisoft Metashape. D-RTK coordinates collected in the field were post-processed using AUSPOS. The updated coordinate was used to shift the camera positions of the P1 camera and inteprolate those of Micasense prior to processing the imagery in Agisoft Metashape. <br><br> A multispectral orthomosaic with relative reflectance in the 5 bands (B, G, R, RedEdge, NIR) of resolution 5 cm was generated and rio command line interface used to create this Cloud optimised GeoTIFF.
- Hierarchy level
- Dataset
Reference System Information
- Reference system identifier
- EPSG/EPSG:4326
- Reference system type
- Geodetic Geographic 2D
Metadata
- Metadata identifier
-
urn:uuid/6cfe0eec-4a7e-441c-a496-002f8c457c05
- Title
- TERN GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
Point of contact
Type of resource
- Resource scope
- Dataset
- Metadata linkage
-
https://geonetwork.tern.org.au/geonetwork/srv/eng/catalog.search#/metadata/6cfe0eec-4a7e-441c-a496-002f8c457c05
Point-of-truth metadata URL
- Date info (Creation)
- 2021-11-08T00:00:00
- Date info (Revision)
- 2024-05-12T00:00:00
Metadata standard
- Title
- ISO 19115-1:2014/AMD 1:2018 Geographic information - Metadata - Fundamentals
- Edition
- 1
Metadata standard
- Title
- ISO/TS 19115-3:2016
- Edition
- 1.0
Metadata standard
- Title
- ISO/TS 19157-2:2016
- Edition
- 1.0
- Title
- Terrestrial Ecosystem Research Network (TERN) Metadata Profile of ISO 19115-3:2016 and ISO 19157-2:2016
- Date (published)
- 2021
- Edition
- 1.0
Identifier
Overviews
Spatial extent
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Provided by
Associated resources
Not available