Backscattering signatures at Ka, Ku, C and S bands from low resolution radar altimetry over land
International audience Radar backscattering coefficients from synthetic aperture radars and scatterometers are commonly used to characterize the land surface properties and monitor their temporal evolution. Radar altimetry is mostly used, over land, to provide time series of water stage of lakes, ri...
Published in: | Advances in Space Research |
---|---|
Main Authors: | , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2021
|
Subjects: | |
Online Access: | https://hal.sorbonne-universite.fr/hal-03045692 https://hal.sorbonne-universite.fr/hal-03045692/document https://hal.sorbonne-universite.fr/hal-03045692/file/re%CC%81trodiffusion_altime%CC%81trique_v3.pdf https://doi.org/10.1016/j.asr.2020.06.043 |
id |
ftccsdartic:oai:HAL:hal-03045692v1 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Radar altimetry Backscattering Land surface properties [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing [SDE.IE]Environmental Sciences/Environmental Engineering |
spellingShingle |
Radar altimetry Backscattering Land surface properties [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing [SDE.IE]Environmental Sciences/Environmental Engineering Frappart, Frédéric Blarel, Fabien Papa, Fabrice Prigent, Catherine Mougin, Éric Paillou, Philippe Baup, Frédéric Zeiger, Pierre Salameh, Edward Darrozes, José Bourrel, Luc Rémy, Frédérique Backscattering signatures at Ka, Ku, C and S bands from low resolution radar altimetry over land |
topic_facet |
Radar altimetry Backscattering Land surface properties [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing [SDE.IE]Environmental Sciences/Environmental Engineering |
description |
International audience Radar backscattering coefficients from synthetic aperture radars and scatterometers are commonly used to characterize the land surface properties and monitor their temporal evolution. Radar altimetry is mostly used, over land, to provide time series of water stage of lakes, rivers and wetlands and the topography of the ice sheets. Very few studies used the radar altimetry backscattering coefficients for geophysical applications except to determine changes in Arctic lakes state surface, surface soil moisture in semi-arid environments or flood extent at high latitude. As radar altimetry missions acquired data in four frequency bands (mostly C and Ku but also S and Ka), this study proposes the first thorough analysis of the backscattering signatures of land surfaces using observations from ERS-2, Jason-1, ENVISAT, Jason-2 and SARAL radar altimetry missions The spatial and temporal variations of several altimetric information (backscattering coefficient, waveform peakiness, leading edge width and trailing edge slope) are examined at global scale, for each frequency band separately, as well as for their differences. Their relationship with related variations in the surface characteristics (i.e., soil type, soil moisture, presence of water and snow) are evidenced. Finally, spatial patterns and temporal variations computed over selected regions, representative of the major bioclimatic areas, are related to their surface properties and changes. |
author2 |
Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS) Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA (UMR_8112)) Observatoire de Paris Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-CY Cergy Paris Université (CY) Géosciences Environnement Toulouse (GET) Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP) Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD) Laboratoire d'Astrophysique de Bordeaux Pessac (LAB) Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Centre d'études spatiales de la biosphère (CESBIO) Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Toulouse III - Paul Sabatier (UT3) Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS) Morphodynamique Continentale et Côtière (M2C) Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rouen Normandie (UNIROUEN) Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Frappart, Frédéric Blarel, Fabien Papa, Fabrice Prigent, Catherine Mougin, Éric Paillou, Philippe Baup, Frédéric Zeiger, Pierre Salameh, Edward Darrozes, José Bourrel, Luc Rémy, Frédérique |
author_facet |
Frappart, Frédéric Blarel, Fabien Papa, Fabrice Prigent, Catherine Mougin, Éric Paillou, Philippe Baup, Frédéric Zeiger, Pierre Salameh, Edward Darrozes, José Bourrel, Luc Rémy, Frédérique |
author_sort |
Frappart, Frédéric |
title |
Backscattering signatures at Ka, Ku, C and S bands from low resolution radar altimetry over land |
title_short |
Backscattering signatures at Ka, Ku, C and S bands from low resolution radar altimetry over land |
title_full |
Backscattering signatures at Ka, Ku, C and S bands from low resolution radar altimetry over land |
title_fullStr |
Backscattering signatures at Ka, Ku, C and S bands from low resolution radar altimetry over land |
title_full_unstemmed |
Backscattering signatures at Ka, Ku, C and S bands from low resolution radar altimetry over land |
title_sort |
backscattering signatures at ka, ku, c and s bands from low resolution radar altimetry over land |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.sorbonne-universite.fr/hal-03045692 https://hal.sorbonne-universite.fr/hal-03045692/document https://hal.sorbonne-universite.fr/hal-03045692/file/re%CC%81trodiffusion_altime%CC%81trique_v3.pdf https://doi.org/10.1016/j.asr.2020.06.043 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
ISSN: 0273-1177 Advances in Space Research https://hal.sorbonne-universite.fr/hal-03045692 Advances in Space Research, Elsevier, 2021, 68 (2), pp.989-1012. ⟨10.1016/j.asr.2020.06.043⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.asr.2020.06.043 hal-03045692 https://hal.sorbonne-universite.fr/hal-03045692 https://hal.sorbonne-universite.fr/hal-03045692/document https://hal.sorbonne-universite.fr/hal-03045692/file/re%CC%81trodiffusion_altime%CC%81trique_v3.pdf doi:10.1016/j.asr.2020.06.043 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.asr.2020.06.043 |
container_title |
Advances in Space Research |
container_volume |
68 |
container_issue |
2 |
container_start_page |
989 |
op_container_end_page |
1012 |
_version_ |
1766341814648832000 |
spelling |
ftccsdartic:oai:HAL:hal-03045692v1 2023-05-15T15:10:53+02:00 Backscattering signatures at Ka, Ku, C and S bands from low resolution radar altimetry over land Frappart, Frédéric Blarel, Fabien Papa, Fabrice Prigent, Catherine Mougin, Éric Paillou, Philippe Baup, Frédéric Zeiger, Pierre Salameh, Edward Darrozes, José Bourrel, Luc Rémy, Frédérique Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS) Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA (UMR_8112)) Observatoire de Paris Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-CY Cergy Paris Université (CY) Géosciences Environnement Toulouse (GET) Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP) Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD) Laboratoire d'Astrophysique de Bordeaux Pessac (LAB) Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Centre d'études spatiales de la biosphère (CESBIO) Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Toulouse III - Paul Sabatier (UT3) Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS) Morphodynamique Continentale et Côtière (M2C) Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rouen Normandie (UNIROUEN) Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS) 2021 https://hal.sorbonne-universite.fr/hal-03045692 https://hal.sorbonne-universite.fr/hal-03045692/document https://hal.sorbonne-universite.fr/hal-03045692/file/re%CC%81trodiffusion_altime%CC%81trique_v3.pdf https://doi.org/10.1016/j.asr.2020.06.043 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.asr.2020.06.043 hal-03045692 https://hal.sorbonne-universite.fr/hal-03045692 https://hal.sorbonne-universite.fr/hal-03045692/document https://hal.sorbonne-universite.fr/hal-03045692/file/re%CC%81trodiffusion_altime%CC%81trique_v3.pdf doi:10.1016/j.asr.2020.06.043 info:eu-repo/semantics/OpenAccess ISSN: 0273-1177 Advances in Space Research https://hal.sorbonne-universite.fr/hal-03045692 Advances in Space Research, Elsevier, 2021, 68 (2), pp.989-1012. ⟨10.1016/j.asr.2020.06.043⟩ Radar altimetry Backscattering Land surface properties [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing [SDE.IE]Environmental Sciences/Environmental Engineering info:eu-repo/semantics/article Journal articles 2021 ftccsdartic https://doi.org/10.1016/j.asr.2020.06.043 2021-12-25T23:37:38Z International audience Radar backscattering coefficients from synthetic aperture radars and scatterometers are commonly used to characterize the land surface properties and monitor their temporal evolution. Radar altimetry is mostly used, over land, to provide time series of water stage of lakes, rivers and wetlands and the topography of the ice sheets. Very few studies used the radar altimetry backscattering coefficients for geophysical applications except to determine changes in Arctic lakes state surface, surface soil moisture in semi-arid environments or flood extent at high latitude. As radar altimetry missions acquired data in four frequency bands (mostly C and Ku but also S and Ka), this study proposes the first thorough analysis of the backscattering signatures of land surfaces using observations from ERS-2, Jason-1, ENVISAT, Jason-2 and SARAL radar altimetry missions The spatial and temporal variations of several altimetric information (backscattering coefficient, waveform peakiness, leading edge width and trailing edge slope) are examined at global scale, for each frequency band separately, as well as for their differences. Their relationship with related variations in the surface characteristics (i.e., soil type, soil moisture, presence of water and snow) are evidenced. Finally, spatial patterns and temporal variations computed over selected regions, representative of the major bioclimatic areas, are related to their surface properties and changes. Article in Journal/Newspaper Arctic Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Arctic Advances in Space Research 68 2 989 1012 |