Classification of the global Sentinel-1 SAR vignettes for ocean surface process studies
International audience Spaceborne synthetic aperture radar (SAR) can provide finely-resolved (meters-scale) images of ocean surface roughness day-or-night in nearly all weather conditions. This makes it a unique asset for many geophysical applications. Initially designed for the measurement of direc...
Published in: | Remote Sensing of Environment |
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Main Authors: | , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2019
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Subjects: | |
Online Access: | https://imt-atlantique.hal.science/hal-02363568 https://imt-atlantique.hal.science/hal-02363568/document https://imt-atlantique.hal.science/hal-02363568/file/S0034425719304766.pdf https://doi.org/10.1016/j.rse.2019.111457 |
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openpolar |
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Open Polar |
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Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[STAT.AP]Statistics [stat]/Applications [stat.AP] [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[STAT.AP]Statistics [stat]/Applications [stat.AP] [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Wang, Chen Tandeo, Pierre Mouche, Alexis Stopa, Justin Gressani, Victor Longépé, Nicolas Vandemark, Douglas Foster, Ralph Chapron, Bertrand Classification of the global Sentinel-1 SAR vignettes for ocean surface process studies |
topic_facet |
[STAT.AP]Statistics [stat]/Applications [stat.AP] [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience Spaceborne synthetic aperture radar (SAR) can provide finely-resolved (meters-scale) images of ocean surface roughness day-or-night in nearly all weather conditions. This makes it a unique asset for many geophysical applications. Initially designed for the measurement of directional ocean wave spectra, Sentinel-1 SAR wave mode (WV) vignettes are small 20 km scenes that have been collected globally since 2014. Recent WV data exploration reveals that many important oceanic and atmospheric phenomena are also well captured, but not yet employed by the scientific community. However, expanding applications of this whole massive dataset beyond ocean waves requires a strategy to automatically identify these geophysical phenomena. In this study, we propose to apply the emerging deep learning approach in ocean SAR scenes classification. The training is performed using a hand-curated dataset that describes ten commonly-occurring atmospheric or oceanic processes. Our model evaluation relies on an independent assessment dataset and shows satisfactory and robust classification results. To further illustrate the model performance, regional patterns of rain and sea ice are qualitatively analyzed and found to be very consistent with independent remote sensing datasets. In addition, these high-resolution WV SAR data can resolve fine, sub-km scale, spatial structure of rain events and sea ice that complement other satellite measurements. Overall, such automated SAR vignettes classification may open paths for broader geophysical application of maritime Sentinel-1 acquisitions. |
author2 |
Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Département Signal et Communications (IMT Atlantique - SC) IMT Atlantique (IMT Atlantique) Institut Mines-Télécom Paris (IMT)-Institut Mines-Télécom Paris (IMT) Lab-STICC_IMTA_CID_TOMS Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC) École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom Paris (IMT)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL)-IMT Atlantique (IMT Atlantique) Institut Mines-Télécom Paris (IMT)-École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom Paris (IMT)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL)-IMT Atlantique (IMT Atlantique) Institut Mines-Télécom Paris (IMT) Laboratoire d'Océanographie Physique et Spatiale (LOPS) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS) Collecte Localisation Satellites Toulouse (CLS) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National d'Études Spatiales Toulouse (CNES) NASA Goddard Space Flight Center (GSFC) University of New Hampshire (UNH) Laboratoire d'Océanographie Spatiale (LOS) |
format |
Article in Journal/Newspaper |
author |
Wang, Chen Tandeo, Pierre Mouche, Alexis Stopa, Justin Gressani, Victor Longépé, Nicolas Vandemark, Douglas Foster, Ralph Chapron, Bertrand |
author_facet |
Wang, Chen Tandeo, Pierre Mouche, Alexis Stopa, Justin Gressani, Victor Longépé, Nicolas Vandemark, Douglas Foster, Ralph Chapron, Bertrand |
author_sort |
Wang, Chen |
title |
Classification of the global Sentinel-1 SAR vignettes for ocean surface process studies |
title_short |
Classification of the global Sentinel-1 SAR vignettes for ocean surface process studies |
title_full |
Classification of the global Sentinel-1 SAR vignettes for ocean surface process studies |
title_fullStr |
Classification of the global Sentinel-1 SAR vignettes for ocean surface process studies |
title_full_unstemmed |
Classification of the global Sentinel-1 SAR vignettes for ocean surface process studies |
title_sort |
classification of the global sentinel-1 sar vignettes for ocean surface process studies |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://imt-atlantique.hal.science/hal-02363568 https://imt-atlantique.hal.science/hal-02363568/document https://imt-atlantique.hal.science/hal-02363568/file/S0034425719304766.pdf https://doi.org/10.1016/j.rse.2019.111457 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
ISSN: 0034-4257 EISSN: 1879-0704 Remote Sensing of Environment https://imt-atlantique.hal.science/hal-02363568 Remote Sensing of Environment, 2019, 234, pp.111457. ⟨10.1016/j.rse.2019.111457⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.rse.2019.111457 hal-02363568 https://imt-atlantique.hal.science/hal-02363568 https://imt-atlantique.hal.science/hal-02363568/document https://imt-atlantique.hal.science/hal-02363568/file/S0034425719304766.pdf doi:10.1016/j.rse.2019.111457 PII: S0034-4257(19)30476-6 |
op_rights |
http://creativecommons.org/licenses/by-nc/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.rse.2019.111457 |
container_title |
Remote Sensing of Environment |
container_volume |
234 |
container_start_page |
111457 |
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1796318849424949248 |
spelling |
ftinsu:oai:HAL:hal-02363568v1 2024-04-14T08:19:12+00:00 Classification of the global Sentinel-1 SAR vignettes for ocean surface process studies Wang, Chen Tandeo, Pierre Mouche, Alexis Stopa, Justin Gressani, Victor Longépé, Nicolas Vandemark, Douglas Foster, Ralph Chapron, Bertrand Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Département Signal et Communications (IMT Atlantique - SC) IMT Atlantique (IMT Atlantique) Institut Mines-Télécom Paris (IMT)-Institut Mines-Télécom Paris (IMT) Lab-STICC_IMTA_CID_TOMS Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC) École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom Paris (IMT)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL)-IMT Atlantique (IMT Atlantique) Institut Mines-Télécom Paris (IMT)-École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom Paris (IMT)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL)-IMT Atlantique (IMT Atlantique) Institut Mines-Télécom Paris (IMT) Laboratoire d'Océanographie Physique et Spatiale (LOPS) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS) Collecte Localisation Satellites Toulouse (CLS) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National d'Études Spatiales Toulouse (CNES) NASA Goddard Space Flight Center (GSFC) University of New Hampshire (UNH) Laboratoire d'Océanographie Spatiale (LOS) 2019-12-01 https://imt-atlantique.hal.science/hal-02363568 https://imt-atlantique.hal.science/hal-02363568/document https://imt-atlantique.hal.science/hal-02363568/file/S0034425719304766.pdf https://doi.org/10.1016/j.rse.2019.111457 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.rse.2019.111457 hal-02363568 https://imt-atlantique.hal.science/hal-02363568 https://imt-atlantique.hal.science/hal-02363568/document https://imt-atlantique.hal.science/hal-02363568/file/S0034425719304766.pdf doi:10.1016/j.rse.2019.111457 PII: S0034-4257(19)30476-6 http://creativecommons.org/licenses/by-nc/ info:eu-repo/semantics/OpenAccess ISSN: 0034-4257 EISSN: 1879-0704 Remote Sensing of Environment https://imt-atlantique.hal.science/hal-02363568 Remote Sensing of Environment, 2019, 234, pp.111457. ⟨10.1016/j.rse.2019.111457⟩ [STAT.AP]Statistics [stat]/Applications [stat.AP] [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2019 ftinsu https://doi.org/10.1016/j.rse.2019.111457 2024-03-21T17:16:45Z International audience Spaceborne synthetic aperture radar (SAR) can provide finely-resolved (meters-scale) images of ocean surface roughness day-or-night in nearly all weather conditions. This makes it a unique asset for many geophysical applications. Initially designed for the measurement of directional ocean wave spectra, Sentinel-1 SAR wave mode (WV) vignettes are small 20 km scenes that have been collected globally since 2014. Recent WV data exploration reveals that many important oceanic and atmospheric phenomena are also well captured, but not yet employed by the scientific community. However, expanding applications of this whole massive dataset beyond ocean waves requires a strategy to automatically identify these geophysical phenomena. In this study, we propose to apply the emerging deep learning approach in ocean SAR scenes classification. The training is performed using a hand-curated dataset that describes ten commonly-occurring atmospheric or oceanic processes. Our model evaluation relies on an independent assessment dataset and shows satisfactory and robust classification results. To further illustrate the model performance, regional patterns of rain and sea ice are qualitatively analyzed and found to be very consistent with independent remote sensing datasets. In addition, these high-resolution WV SAR data can resolve fine, sub-km scale, spatial structure of rain events and sea ice that complement other satellite measurements. Overall, such automated SAR vignettes classification may open paths for broader geophysical application of maritime Sentinel-1 acquisitions. Article in Journal/Newspaper Sea ice Institut national des sciences de l'Univers: HAL-INSU Remote Sensing of Environment 234 111457 |