Global Satellite-Based Coastal Bathymetry from Waves

The seafloor—or bathymetry—of the world’s coastal waters remains largely unknown despite its primary importance to human activities and ecosystems. Here we present S2Shores (Satellite to Shores), the first sub-kilometer global atlas of coastal bathymetry based on depth inversion from wave kinematics...

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Autores principales:	Rafael Almar, Erwin W. J. Bergsma, Gregoire Thoumyre, Mohamed Wassim Baba, Guillaume Cesbron, Christopher Daly, Thierry Garlan, Anne Lifermann
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	coastal ocean satellite earth observation wave kinematics bathymetry remote sensing optical imagery Science Q
Acceso en línea:	https://doaj.org/article/7758c8f2794a4670a50d98a0fe4a4365
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id	oai:doaj.org-article:7758c8f2794a4670a50d98a0fe4a4365
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spelling	oai:doaj.org-article:7758c8f2794a4670a50d98a0fe4a43652021-11-25T18:54:55ZGlobal Satellite-Based Coastal Bathymetry from Waves10.3390/rs132246282072-4292https://doaj.org/article/7758c8f2794a4670a50d98a0fe4a43652021-11-01T00:00:00Zhttps://www.mdpi.com/2072-4292/13/22/4628https://doaj.org/toc/2072-4292The seafloor—or bathymetry—of the world’s coastal waters remains largely unknown despite its primary importance to human activities and ecosystems. Here we present S2Shores (Satellite to Shores), the first sub-kilometer global atlas of coastal bathymetry based on depth inversion from wave kinematics captured by the Sentinel-2 constellation. The methodology reveals coastal seafloors up to a hundred meters in depth which allows covering most continental shelves and represents 4.9 million km<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mrow></mrow><mn>2</mn></msup></semantics></math></inline-formula> along the world coastline. Although the vertical accuracy (RMSE 6–9 m) is currently coarser than that of traditional surveying techniques, S2Shores is of particular interest to countries that do not have the means to carry out in situ surveys and to unexplored regions such as polar areas. S2Shores is a major step forward in mitigating the effects of global changes on coastal communities and ecosystems by providing scientists, engineers, and policy makers with new science-based decision tools.Rafael AlmarErwin W. J. BergsmaGregoire ThoumyreMohamed Wassim BabaGuillaume CesbronChristopher DalyThierry GarlanAnne LifermannMDPI AGarticlecoastal oceansatellite earth observationwave kinematics bathymetryremote sensingoptical imageryScienceQENRemote Sensing, Vol 13, Iss 4628, p 4628 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	coastal ocean satellite earth observation wave kinematics bathymetry remote sensing optical imagery Science Q
spellingShingle	coastal ocean satellite earth observation wave kinematics bathymetry remote sensing optical imagery Science Q Rafael Almar Erwin W. J. Bergsma Gregoire Thoumyre Mohamed Wassim Baba Guillaume Cesbron Christopher Daly Thierry Garlan Anne Lifermann Global Satellite-Based Coastal Bathymetry from Waves
description	The seafloor—or bathymetry—of the world’s coastal waters remains largely unknown despite its primary importance to human activities and ecosystems. Here we present S2Shores (Satellite to Shores), the first sub-kilometer global atlas of coastal bathymetry based on depth inversion from wave kinematics captured by the Sentinel-2 constellation. The methodology reveals coastal seafloors up to a hundred meters in depth which allows covering most continental shelves and represents 4.9 million km<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mrow></mrow><mn>2</mn></msup></semantics></math></inline-formula> along the world coastline. Although the vertical accuracy (RMSE 6–9 m) is currently coarser than that of traditional surveying techniques, S2Shores is of particular interest to countries that do not have the means to carry out in situ surveys and to unexplored regions such as polar areas. S2Shores is a major step forward in mitigating the effects of global changes on coastal communities and ecosystems by providing scientists, engineers, and policy makers with new science-based decision tools.
format	article
author	Rafael Almar Erwin W. J. Bergsma Gregoire Thoumyre Mohamed Wassim Baba Guillaume Cesbron Christopher Daly Thierry Garlan Anne Lifermann
author_facet	Rafael Almar Erwin W. J. Bergsma Gregoire Thoumyre Mohamed Wassim Baba Guillaume Cesbron Christopher Daly Thierry Garlan Anne Lifermann
author_sort	Rafael Almar
title	Global Satellite-Based Coastal Bathymetry from Waves
title_short	Global Satellite-Based Coastal Bathymetry from Waves
title_full	Global Satellite-Based Coastal Bathymetry from Waves
title_fullStr	Global Satellite-Based Coastal Bathymetry from Waves
title_full_unstemmed	Global Satellite-Based Coastal Bathymetry from Waves
title_sort	global satellite-based coastal bathymetry from waves
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/7758c8f2794a4670a50d98a0fe4a4365
work_keys_str_mv	AT rafaelalmar globalsatellitebasedcoastalbathymetryfromwaves AT erwinwjbergsma globalsatellitebasedcoastalbathymetryfromwaves AT gregoirethoumyre globalsatellitebasedcoastalbathymetryfromwaves AT mohamedwassimbaba globalsatellitebasedcoastalbathymetryfromwaves AT guillaumecesbron globalsatellitebasedcoastalbathymetryfromwaves AT christopherdaly globalsatellitebasedcoastalbathymetryfromwaves AT thierrygarlan globalsatellitebasedcoastalbathymetryfromwaves AT annelifermann globalsatellitebasedcoastalbathymetryfromwaves
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Global Satellite-Based Coastal Bathymetry from Waves

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