EELGRASS MAPPING WITH SENTINEL-2 AND UAV DATA IN PRINCE EDWARD ISLAND (CANADA)

Eelgrass (Zostera marina L.) is a marine angiosperm that grows throughout coastal regions in Atlantic Canada. Eelgrass beds provide a variety of important ecosystem services, and while it is considered an important marine species, little research has been done to understand its distribution and loca...

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Bibliographic Details
Published in:ISPRS annals of the photogrammetry, remote sensing and spatial information sciences remote sensing and spatial information sciences, 2021-06, Vol.V-3-2021, p.125-132
Main Authors: Gallant, E., LaRocque, A., Leblon, B., Douglas, A.
Format: Article
Language:English
Subjects:
Aquatic plants
Autonomous underwater vehicles
Cameras
Coastal zone
Ecosystem services
Environmental conditions
Image classification
Marine ecosystems
Satellites
Unmanned aerial vehicles
Watersheds
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Summary:Eelgrass (Zostera marina L.) is a marine angiosperm that grows throughout coastal regions in Atlantic Canada. Eelgrass beds provide a variety of important ecosystem services, and while it is considered an important marine species, little research has been done to understand its distribution and location within Atlantic Canada. The purpose of this study was to assess the capability of Sentinel-2 and UAV imagery to map the presence of eelgrass beds within the Souris River in Prince Edward Island. Both imageries were classified using the non-parametric Random Forests (RF) supervised classifier and the resulting classification was validated using sonar data. The Sentinel-2 classified image had a lower validation accuracy at 77.7%, while the UAV classified image had a validation accuracy of 90.9%. The limitations of the study and recommendations for future work are also presented.
ISSN:2194-9050
2194-9042
2194-9050
DOI:10.5194/isprs-annals-V-3-2021-125-2021