Geomorphic changes of a coral shingle cay measured using Kite Aerial Photography

Bryson, Mitch, Duce, Stephanie, Harris, Dan, Webster, Jody M., Thompson, Alisha, Vila-Concejo, Ana, and Williams, Stefan B. (2016) Geomorphic changes of a coral shingle cay measured using Kite Aerial Photography. Geomorphology, 270. pp. 1-8.

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Abstract

Measurements of geomorphic change in the intertidal zones of coral reefs are made using a variety of remote sensing and in-situ techniques, where variations in the coverage and spatial-temporal precision achieved are directly related to the cost of data acquisition. We present a novel, low-cost technique for measuring high-resolution changes in reef environments based on Kite Aerial Photography (KAP) and photogrammetry/structure-from-motion post-processing. KAP images are used to measure fine-scale changes in intertidal topography and sediment texture characteristics, including rubble particle size, of a coral shingle cay at One Tree Island, Great Barrier Reef in the context of storm activity. Validation using Real Time Kinematic DGPS demonstrates the ability to measure topographic elevation with an error of 5.53 cm (RMSE) and a spatial resolution of 5 cm per point, an accuracy/resolution that is superior to airborne LiDAR and equivalent to terrestrial LiDAR, but at a fraction of the equipment cost.

Item ID: 47333
Item Type: Article (Refereed Research - C1)
Keywords: kite aerial photography, 3D topography, coral reef morphodynamics, geomorphology
ISSN: 1872-695X
Funders: Australian Research Council (ARC)
Projects and Grants: ARC Future Fellowship FT100100215 & project LP098999, University of Sydney
Date Deposited: 15 Mar 2017 03:35
FoR Codes: 04 EARTH SCIENCES > 0406 Physical Geography and Environmental Geoscience > 040607 Surface Processes @ 50%
08 INFORMATION AND COMPUTING SCIENCES > 0801 Artificial Intelligence and Image Processing > 080106 Image Processing @ 50%
SEO Codes: 96 ENVIRONMENT > 9603 Climate and Climate Change > 960301 Climate Change Adaptation Measures @ 30%
96 ENVIRONMENT > 9609 Land and Water Management > 960999 Land and Water Management of Environments not elsewhere classified @ 70%
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