Current map and bathymetry from p band sar images : preliminary results
International audience Microwave remote sensing at very long wavelength is already used and validated for coastal zone regions and regions covered by ice (Antarctica) using airborne systems. For many other applications, a high potential exists and the PYLA 2001 experiment allowed the acquisition of...
Published in: | IGARSS 2003. 2003 IEEE International Geoscience and Remote Sensing Symposium. Proceedings (IEEE Cat. No.03CH37477) |
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Main Authors: | , , , , , , |
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Language: | French |
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HAL CCSD
2003
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Online Access: | https://hal.science/hal-02891664 https://hal.science/hal-02891664/document https://hal.science/hal-02891664/file/Garelloal_IEEE_2003.pdf https://doi.org/10.1109/IGARSS.2003.1293977 |
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[SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing Garello, René Le Caillec, Jean-Marc Dupuis, Hélène Marieu, Vincent Durand, Nathalie Dreuillet, Philippe Titin-Schnaider, Cécile Current map and bathymetry from p band sar images : preliminary results |
topic_facet |
[SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing |
description |
International audience Microwave remote sensing at very long wavelength is already used and validated for coastal zone regions and regions covered by ice (Antarctica) using airborne systems. For many other applications, a high potential exists and the PYLA 2001 experiment allowed the acquisition of data for fields still under preliminary tests. The experiment was carried on a Transall aircraft (French army/DGA) and used the SAR sensor RAMSES (multifrequency/multipolarization) from ONERA by P. Paillou et al. (2001). For the experiment, the acquisition was performed in P band (435 MHz). The aim was to explore potentials of the low frequency domain for sub-surface moisture detection (Pyla sand dune), biomass evaluation (Nezer forest), mapping of the ocean bathymetry and salinity (Arcachon inlet, estuary of the river Gironde), and archaeology (St Germain d'Esteuil, Dignac, Moulin du Fa). A dedicated P-band calibration site was set up in order to fully exploit the polarimetric information. This part of the study consists of analyzing SAR images from RAMSES (P band) in order to be able to take into account the effect of longer surface waves, winds and currents on the surface roughness in the Arcachon inlet. Tidal currents associated with long oceanic waves recorded at the mouth of the inlet, including the northern channel and sand banks of the ebb tidal delta. The analysis provides tools allowing the production of current maps, which are in turn compared to in-situ measurements by GPS on surface drifting buoys and to current velocity fields provided by a 2DH numerical model, MARS-2D. The evaluation of the ability of a 1D hydrodynamical model applied to SAR images in order to reproduce currents in the area presented. Multipolarization images can be used in order to separate the information associated with the ocean surface (tilt) modulation, which is different for each polarimetric image, from the hydrodynamic modulation, similar for each image. The tilt modulation is representative of a Real Aperture Radar-like ... |
author2 |
Traitement Algorithmique et Matériel de la Communication, de l'Information et de la Connaissance (TAMCIC) Ecole Nationale Supérieure des Télécommunications de Bretagne-Centre National de la Recherche Scientifique (CNRS) Environnements et Paléoenvironnements OCéaniques (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) ONERA - The French Aerospace Lab Palaiseau ONERA-Université Paris Saclay (COmUE) |
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Conference Object |
author |
Garello, René Le Caillec, Jean-Marc Dupuis, Hélène Marieu, Vincent Durand, Nathalie Dreuillet, Philippe Titin-Schnaider, Cécile |
author_facet |
Garello, René Le Caillec, Jean-Marc Dupuis, Hélène Marieu, Vincent Durand, Nathalie Dreuillet, Philippe Titin-Schnaider, Cécile |
author_sort |
Garello, René |
title |
Current map and bathymetry from p band sar images : preliminary results |
title_short |
Current map and bathymetry from p band sar images : preliminary results |
title_full |
Current map and bathymetry from p band sar images : preliminary results |
title_fullStr |
Current map and bathymetry from p band sar images : preliminary results |
title_full_unstemmed |
Current map and bathymetry from p band sar images : preliminary results |
title_sort |
current map and bathymetry from p band sar images : preliminary results |
publisher |
HAL CCSD |
publishDate |
2003 |
url |
https://hal.science/hal-02891664 https://hal.science/hal-02891664/document https://hal.science/hal-02891664/file/Garelloal_IEEE_2003.pdf https://doi.org/10.1109/IGARSS.2003.1293977 |
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Toulouse, France |
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Antarc* Antarctica |
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Antarc* Antarctica |
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Actes IGARSS 2003 : international symposium on geoscience and remote sensing IGARSS 2003 : international symposium on geoscience and remote sensing https://hal.science/hal-02891664 IGARSS 2003 : international symposium on geoscience and remote sensing, Jul 2003, Toulouse, France. pp.960-962, ⟨10.1109/IGARSS.2003.1293977⟩ |
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info:eu-repo/semantics/altIdentifier/doi/10.1109/IGARSS.2003.1293977 ISBN: 978-0-7803-7929-2 hal-02891664 https://hal.science/hal-02891664 https://hal.science/hal-02891664/document https://hal.science/hal-02891664/file/Garelloal_IEEE_2003.pdf doi:10.1109/IGARSS.2003.1293977 |
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http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1109/IGARSS.2003.1293977 |
container_title |
IGARSS 2003. 2003 IEEE International Geoscience and Remote Sensing Symposium. Proceedings (IEEE Cat. No.03CH37477) |
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2 |
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960 |
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962 |
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ftimtatlantique:oai:HAL:hal-02891664v1 2024-05-19T07:30:02+00:00 Current map and bathymetry from p band sar images : preliminary results Garello, René Le Caillec, Jean-Marc Dupuis, Hélène Marieu, Vincent Durand, Nathalie Dreuillet, Philippe Titin-Schnaider, Cécile Traitement Algorithmique et Matériel de la Communication, de l'Information et de la Connaissance (TAMCIC) Ecole Nationale Supérieure des Télécommunications de Bretagne-Centre National de la Recherche Scientifique (CNRS) Environnements et Paléoenvironnements OCéaniques (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) ONERA - The French Aerospace Lab Palaiseau ONERA-Université Paris Saclay (COmUE) Toulouse, France 2003-07-21 https://hal.science/hal-02891664 https://hal.science/hal-02891664/document https://hal.science/hal-02891664/file/Garelloal_IEEE_2003.pdf https://doi.org/10.1109/IGARSS.2003.1293977 fr fre HAL CCSD IEEE Xplore info:eu-repo/semantics/altIdentifier/doi/10.1109/IGARSS.2003.1293977 ISBN: 978-0-7803-7929-2 hal-02891664 https://hal.science/hal-02891664 https://hal.science/hal-02891664/document https://hal.science/hal-02891664/file/Garelloal_IEEE_2003.pdf doi:10.1109/IGARSS.2003.1293977 http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess Actes IGARSS 2003 : international symposium on geoscience and remote sensing IGARSS 2003 : international symposium on geoscience and remote sensing https://hal.science/hal-02891664 IGARSS 2003 : international symposium on geoscience and remote sensing, Jul 2003, Toulouse, France. pp.960-962, ⟨10.1109/IGARSS.2003.1293977⟩ [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing info:eu-repo/semantics/conferenceObject Conference papers 2003 ftimtatlantique https://doi.org/10.1109/IGARSS.2003.1293977 2024-04-26T00:08:24Z International audience Microwave remote sensing at very long wavelength is already used and validated for coastal zone regions and regions covered by ice (Antarctica) using airborne systems. For many other applications, a high potential exists and the PYLA 2001 experiment allowed the acquisition of data for fields still under preliminary tests. The experiment was carried on a Transall aircraft (French army/DGA) and used the SAR sensor RAMSES (multifrequency/multipolarization) from ONERA by P. Paillou et al. (2001). For the experiment, the acquisition was performed in P band (435 MHz). The aim was to explore potentials of the low frequency domain for sub-surface moisture detection (Pyla sand dune), biomass evaluation (Nezer forest), mapping of the ocean bathymetry and salinity (Arcachon inlet, estuary of the river Gironde), and archaeology (St Germain d'Esteuil, Dignac, Moulin du Fa). A dedicated P-band calibration site was set up in order to fully exploit the polarimetric information. This part of the study consists of analyzing SAR images from RAMSES (P band) in order to be able to take into account the effect of longer surface waves, winds and currents on the surface roughness in the Arcachon inlet. Tidal currents associated with long oceanic waves recorded at the mouth of the inlet, including the northern channel and sand banks of the ebb tidal delta. The analysis provides tools allowing the production of current maps, which are in turn compared to in-situ measurements by GPS on surface drifting buoys and to current velocity fields provided by a 2DH numerical model, MARS-2D. The evaluation of the ability of a 1D hydrodynamical model applied to SAR images in order to reproduce currents in the area presented. Multipolarization images can be used in order to separate the information associated with the ocean surface (tilt) modulation, which is different for each polarimetric image, from the hydrodynamic modulation, similar for each image. The tilt modulation is representative of a Real Aperture Radar-like ... Conference Object Antarc* Antarctica Archives ouvertes Hal IMT Atlantique IGARSS 2003. 2003 IEEE International Geoscience and Remote Sensing Symposium. Proceedings (IEEE Cat. No.03CH37477) 2 960 962 |