Satellite Image Processing for the Coarse-Scale Investigation of Sandy Coastal Areas

In recent years, satellite imagery has shown its potential to support the sustainable management of land, water, and natural resources. In particular, it can provide key information about the properties and behavior of sandy beaches and the surrounding vegetation, improving the ecomorphological unde...

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Autores principales: Melissa Latella, Arjen Luijendijk, Antonio M. Moreno-Rodenas, Carlo Camporeale
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Lenguaje:EN
Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/3c570a78991b443bbbd86fe561ec7d71
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spelling oai:doaj.org-article:3c570a78991b443bbbd86fe561ec7d712021-11-25T18:54:44ZSatellite Image Processing for the Coarse-Scale Investigation of Sandy Coastal Areas10.3390/rs132246132072-4292https://doaj.org/article/3c570a78991b443bbbd86fe561ec7d712021-11-01T00:00:00Zhttps://www.mdpi.com/2072-4292/13/22/4613https://doaj.org/toc/2072-4292In recent years, satellite imagery has shown its potential to support the sustainable management of land, water, and natural resources. In particular, it can provide key information about the properties and behavior of sandy beaches and the surrounding vegetation, improving the ecomorphological understanding and modeling of coastal dynamics. Although satellite image processing usually demands high memory and computational resources, free online platforms such as Google Earth Engine (GEE) have recently enabled their users to leverage cloud-based tools and handle big satellite data. In this technical note, we describe an algorithm to classify the coastal land cover and retrieve relevant information from Sentinel-2 and Landsat image collections at specific times or in a multitemporal way: the extent of the beach and vegetation strips, the statistics of the grass cover, and the position of the shoreline and the vegetation–sand interface. Furthermore, we validate the algorithm through both quantitative and qualitative methods, demonstrating the goodness of the derived classification (accuracy of approximately 90%) and showing some examples about the use of the algorithm’s output to study coastal physical and ecological dynamics. Finally, we discuss the algorithm’s limitations and potentialities in light of its scaling for global analyses.Melissa LatellaArjen LuijendijkAntonio M. Moreno-RodenasCarlo CamporealeMDPI AGarticleGoogle Earth Enginesatellite imagesshoreline detectiongeomorphologycoastal vegetationbeach monitoringScienceQENRemote Sensing, Vol 13, Iss 4613, p 4613 (2021)
institution DOAJ
collection DOAJ
language EN
topic Google Earth Engine
satellite images
shoreline detection
geomorphology
coastal vegetation
beach monitoring
Science
Q
spellingShingle Google Earth Engine
satellite images
shoreline detection
geomorphology
coastal vegetation
beach monitoring
Science
Q
Melissa Latella
Arjen Luijendijk
Antonio M. Moreno-Rodenas
Carlo Camporeale
Satellite Image Processing for the Coarse-Scale Investigation of Sandy Coastal Areas
description In recent years, satellite imagery has shown its potential to support the sustainable management of land, water, and natural resources. In particular, it can provide key information about the properties and behavior of sandy beaches and the surrounding vegetation, improving the ecomorphological understanding and modeling of coastal dynamics. Although satellite image processing usually demands high memory and computational resources, free online platforms such as Google Earth Engine (GEE) have recently enabled their users to leverage cloud-based tools and handle big satellite data. In this technical note, we describe an algorithm to classify the coastal land cover and retrieve relevant information from Sentinel-2 and Landsat image collections at specific times or in a multitemporal way: the extent of the beach and vegetation strips, the statistics of the grass cover, and the position of the shoreline and the vegetation–sand interface. Furthermore, we validate the algorithm through both quantitative and qualitative methods, demonstrating the goodness of the derived classification (accuracy of approximately 90%) and showing some examples about the use of the algorithm’s output to study coastal physical and ecological dynamics. Finally, we discuss the algorithm’s limitations and potentialities in light of its scaling for global analyses.
format article
author Melissa Latella
Arjen Luijendijk
Antonio M. Moreno-Rodenas
Carlo Camporeale
author_facet Melissa Latella
Arjen Luijendijk
Antonio M. Moreno-Rodenas
Carlo Camporeale
author_sort Melissa Latella
title Satellite Image Processing for the Coarse-Scale Investigation of Sandy Coastal Areas
title_short Satellite Image Processing for the Coarse-Scale Investigation of Sandy Coastal Areas
title_full Satellite Image Processing for the Coarse-Scale Investigation of Sandy Coastal Areas
title_fullStr Satellite Image Processing for the Coarse-Scale Investigation of Sandy Coastal Areas
title_full_unstemmed Satellite Image Processing for the Coarse-Scale Investigation of Sandy Coastal Areas
title_sort satellite image processing for the coarse-scale investigation of sandy coastal areas
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/3c570a78991b443bbbd86fe561ec7d71
work_keys_str_mv AT melissalatella satelliteimageprocessingforthecoarsescaleinvestigationofsandycoastalareas
AT arjenluijendijk satelliteimageprocessingforthecoarsescaleinvestigationofsandycoastalareas
AT antoniommorenorodenas satelliteimageprocessingforthecoarsescaleinvestigationofsandycoastalareas
AT carlocamporeale satelliteimageprocessingforthecoarsescaleinvestigationofsandycoastalareas
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