Reef Flat surveys using the ReefScan survey system for the ecoRRAP project
Data from the ReefScan image survey system for reef flats along the Great Barrier Reef for the ecoRRAP project.
The ReefScan survey system consists of a series of GoPro cameras mounted on an underwater boom either side of a small Tender which then undertakes surveys of reef flat areas of reefs. The surveys are typically 0.5Ha in area (100m x 50m) located over the top of the shallow ecoRRAP sites with the intent to include all of the area of the ecoRAPP DSRL camera surveys and to include the reef edge and reef flat.
The images are geo-located and so can be stitched using the Metashape software (www.agisoft.com) into Ortho-mosaics, the data is also processed into 2.5D DEM's and object clouds which can be used to get structural information. As the data is colelcted at the surface it has some depth information and so best represents 2.5D over true 3D.
The images can also be analysed using Machine Learning to give percent cover of the major benthic forms. One compoent of the work is to develop and validate a set of classificaiton labels suitable for the data collected.
Surveys were done over 2021 and 2022 as part of the Technology Development work with the techniques evolving as the work progressed. The first survey was incomplete and some of the ecoRAPP trips were not surveyed using this system.
The following trips have been completed:
Orpheus / Pelorus Island and Davies Reef I [Jan 2021] (partial survey)
Torres Strait (Dunganess / Masig / Aukane) [Feb 2021]
Moore Reef / Lizard Island [Oct 2021]
Orpheus / Pelorus Island / Davies Reef / Chicken Reef / Little Boardhurst Reef II [Jan 2022]
Davies post-bleaching and Southern Reefs (Heron, Lady Muscgrave) [March 2022]
The core data are sets of geo-located GoPro images of shallow reef areas with a high degree of overlap. The data products derived from these include:
Orth-mosaic images either a GeoTIFFs or as GeoServer layers
Digital Elevation Models (DEM's) showing elevation / bathymetry as GeoTIFFs
Point Clouds or 3D/2.5D models (as obj files)
Percent cover estimates from the images via Machine Learning models
Each survey will have a child metadata record to this parent record.
Simple
Identification info
- Date (Revision)
- 2024-10-17T00:00:00
Publisher
Owner
- Website
- AIMS Web Site
- Website
- AIMS Web Site
- Credit
- Australian Institute of Marine Science (AIMS), Australia
- Status
- On going
Principal investigator
Point of contact
- Temporal resolution
-
P1Y0M0DT0H0M0S
- Topic category
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- Oceans
Extent
- Description
- Region 1

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- Description
- Region 9

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- Description
- Region 5

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- Description
- Region 2

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- Description
- Region 3

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- Region 4

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- Region 6

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- Region 7

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- Region 10

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- Description
- Region 8

Extent
- Description
- Region 11

Extent
- Description
- Collective resources start and end dates
Temporal extent
- Time position
- 2021-01-11
- Maintenance and update frequency
- Annually
Resource constraints
- Linkage
-
http://i.creativecommons.org/l/by-nc/3.0/au/88x31.png
License Graphic
- Title
- Creative Commons Attribution-NonCommercial 3.0 Australia License
- Website
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http://creativecommons.org/licenses/by-nc/3.0/au/
License Text
- Other constraints
- Use Limitation: All AIMS data, products and services are provided "as is" and AIMS does not warrant their fitness for a particular purpose or non-infringement. While AIMS has made every reasonable effort to ensure high quality of the data, products and services, to the extent permitted by law the data, products and services are provided without any warranties of any kind, either expressed or implied, including without limitation any implied warranties of title, merchantability, and fitness for a particular purpose or non-infringement. AIMS make no representation or warranty that the data, products and services are accurate, complete, reliable or current. To the extent permitted by law, AIMS exclude all liability to any person arising directly or indirectly from the use of the data, products and services.
- Other constraints
- Attribution: Format for citation of metadata sourced from Australian Institute of Marine Science (AIMS) in a list of reference is as follows: "Australian Institute of Marine Science (AIMS). (2022). Reef Flat surveys using the ReefScan survey system for the ecoRRAP project. https://apps.aims.gov.au/metadata/view/0e8fa772-7b00-4714-9c73-2fea0ab0d22e, accessed[date-of-access]".
- Language
- English
- Character encoding
- UTF8
Content Information
- Content type
- Physical measurement
Distribution Information
Distributor
Distributor
Resource lineage
- Hierarchy level
- Dataset
- Maintenance and update frequency
- As needed
Metadata
- Metadata identifier
- 0e8fa772-7b00-4714-9c73-2fea0ab0d22e
- Language
- English
- Character encoding
- UTF8
Point of contact
- Hours of service
- 0800 to 1640 UTC+10: Monday to Friday
Type of resource
- Resource scope
- Dataset
- Metadata linkage
-
Point of truth URL of this metadata record
Point of truth URL of this metadata record
- Date info (Creation)
- 2022-02-07T00:00:00
- Date info (Revision)
- 2022-10-14T00:00:00
Metadata standard
- Title
- ISO 19115-3:2018