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Seagrass meadows extents derived from field to spaceborne earth observation at Midge Point, Great Barrier Reef, September/October 2017

Created 13/03/2025

Updated 13/03/2025

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Seagrass meadow extent and meadow-scape was mapped using three alternative approaches at Midge Point, a coastal turbid water habitat, in the central section of the Great Barrier Reef, in September/October 2017. Approach 1 included mapping meadow boundaries and meadow-scape during low spring tides on foot using a handheld Garmin GPS. Approach 2 was where the meadows were surveyed at low tide with observations from a helicopter, with observational spot-checks conducted at a number haphazardly scattered points. Approach 3 used PlanetScope Dove imagery captured on 09 October 2017 coinciding as close as possible to the field-surveys, with 3.7 m x 3.7 m pixels (nadir viewing) acquired from the PlanetScope archive. This record describes meadow extent data collected using Approach 3 (PlanetScope imagery). View the original metadata record at https://doi.org/10.1594/PANGAEA.946606 for the full data collection.

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{"type": "Polygon", "coordinates": [[[148.688, -20.644], [148.725, -20.644], [148.725, -20.625], [148.688, -20.625], [148.688, -20.644]]]}
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Title Seagrass meadows extents derived from field to spaceborne earth observation at Midge Point, Great Barrier Reef, September/October 2017
Language eng
Licence Not Specified
Landing Page https://devweb.dga.links.com.au/data/dataset/235d0373-c7a5-444e-8453-15eb0c326693
Contact Point
CSIRO Oceans & Atmosphere
lucas.langlois@jcu.edu.au
Reference Period 17/09/2017 - 17/10/2017
Geospatial Coverage
Data Portal data.gov.au