Time variability of hydrodynamics and potential use of surface water and ocean topography mission in estuarine macrotidal system: example of Seine estuary
(IF 1.34; Q2) International audience This work was supported by the National Center for Space Studies in the framework of the future mission surface water and ocean topography (SWOT). The estuarine zones with their complex hydrodynamics represent a great challenge for the future SWOT mission. The Se...
Published in: | Journal of Applied Remote Sensing |
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Online Access: | https://hal-normandie-univ.archives-ouvertes.fr/hal-02070412 https://doi.org/10.1117/1.JRS.12.036008 |
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ftccsdartic:oai:HAL:hal-02070412v1 2023-05-15T17:36:55+02:00 Time variability of hydrodynamics and potential use of surface water and ocean topography mission in estuarine macrotidal system: example of Seine estuary Chevalier, Laetitia Laignel, Benoît, Turki, Imen Lyard, Florent Lion, Christine 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) Centre National d'Études Spatiales Toulouse (CNES) University of North Carolina Chapel Hill (UNC) University of North Carolina System (UNC) 2018 https://hal-normandie-univ.archives-ouvertes.fr/hal-02070412 https://doi.org/10.1117/1.JRS.12.036008 en eng HAL CCSD Bellingham, WA : SPIE info:eu-repo/semantics/altIdentifier/doi/10.1117/1.JRS.12.036008 hal-02070412 https://hal-normandie-univ.archives-ouvertes.fr/hal-02070412 doi:10.1117/1.JRS.12.036008 ISSN: 1931-3195 EISSN: 1931-3195 Journal of applied remote sensing https://hal-normandie-univ.archives-ouvertes.fr/hal-02070412 Journal of applied remote sensing, Bellingham, WA : SPIE, 2018, 12 (03), pp.036008. ⟨10.1117/1.JRS.12.036008⟩ [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2018 ftccsdartic https://doi.org/10.1117/1.JRS.12.036008 2021-11-07T02:07:35Z (IF 1.34; Q2) International audience This work was supported by the National Center for Space Studies in the framework of the future mission surface water and ocean topography (SWOT). The estuarine zones with their complex hydrodynamics represent a great challenge for the future SWOT mission. The Seine estuary was selected by the SWOT Science Definition Team for the calibration/validation of the mission. Thus the aim of this study is to investigate the temporal hydrodynamic variability in the Seine estuary and the SWOT ability to reproduce this variability and hydrodynamic phenomena. For this, we used several statistical techniques and frequency analyses applied on the tide-gauge measurements of the Seine estuary and on SWOT simulated data. SWOT samples (SWOT simulated data) have been extracted synthetically from observations using the number of overpasses per repeat cycle [21 days (d)] in order to study the ability of SWOT to reproduce the time variability of the hydrodynamics. Results have demonstrated similar frequencies of multiyear, annual, and intraannual along the estuary from the Seine discharge to the Cherbourg sea level. The 11- to 22-d frequency has been only observed for estuarine and coastal time series suggesting the tide effect in these contexts. The distribution of levels has shown a high influence of tides and discharges at the downstream and the upstream, respectively. Low frequencies of water level are explained by the climate patterns of North Atlantic Oscillation with a mean range of 65%, whereas the high frequencies are associated to the periods of flooding and stormy events. Finally, simulated SWOT samples of water level show a better restitution of observations for high overpasses number. The results have shown a better restitution of hydrodynamic variability by SWOT in the river and upstream of estuary than in the downstream of estuary and coastal zone: in the estuary downstream and the coast, the annual mode is underexpressed while the 3-month (m) mode is overexpressed, which means ... Article in Journal/Newspaper North Atlantic North Atlantic oscillation Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Journal of Applied Remote Sensing 12 03 1 |
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 |
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Chevalier, Laetitia Laignel, Benoît, Turki, Imen Lyard, Florent Lion, Christine Time variability of hydrodynamics and potential use of surface water and ocean topography mission in estuarine macrotidal system: example of Seine estuary |
topic_facet |
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
(IF 1.34; Q2) International audience This work was supported by the National Center for Space Studies in the framework of the future mission surface water and ocean topography (SWOT). The estuarine zones with their complex hydrodynamics represent a great challenge for the future SWOT mission. The Seine estuary was selected by the SWOT Science Definition Team for the calibration/validation of the mission. Thus the aim of this study is to investigate the temporal hydrodynamic variability in the Seine estuary and the SWOT ability to reproduce this variability and hydrodynamic phenomena. For this, we used several statistical techniques and frequency analyses applied on the tide-gauge measurements of the Seine estuary and on SWOT simulated data. SWOT samples (SWOT simulated data) have been extracted synthetically from observations using the number of overpasses per repeat cycle [21 days (d)] in order to study the ability of SWOT to reproduce the time variability of the hydrodynamics. Results have demonstrated similar frequencies of multiyear, annual, and intraannual along the estuary from the Seine discharge to the Cherbourg sea level. The 11- to 22-d frequency has been only observed for estuarine and coastal time series suggesting the tide effect in these contexts. The distribution of levels has shown a high influence of tides and discharges at the downstream and the upstream, respectively. Low frequencies of water level are explained by the climate patterns of North Atlantic Oscillation with a mean range of 65%, whereas the high frequencies are associated to the periods of flooding and stormy events. Finally, simulated SWOT samples of water level show a better restitution of observations for high overpasses number. The results have shown a better restitution of hydrodynamic variability by SWOT in the river and upstream of estuary than in the downstream of estuary and coastal zone: in the estuary downstream and the coast, the annual mode is underexpressed while the 3-month (m) mode is overexpressed, which means ... |
author2 |
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) Centre National d'Études Spatiales Toulouse (CNES) University of North Carolina Chapel Hill (UNC) University of North Carolina System (UNC) |
format |
Article in Journal/Newspaper |
author |
Chevalier, Laetitia Laignel, Benoît, Turki, Imen Lyard, Florent Lion, Christine |
author_facet |
Chevalier, Laetitia Laignel, Benoît, Turki, Imen Lyard, Florent Lion, Christine |
author_sort |
Chevalier, Laetitia |
title |
Time variability of hydrodynamics and potential use of surface water and ocean topography mission in estuarine macrotidal system: example of Seine estuary |
title_short |
Time variability of hydrodynamics and potential use of surface water and ocean topography mission in estuarine macrotidal system: example of Seine estuary |
title_full |
Time variability of hydrodynamics and potential use of surface water and ocean topography mission in estuarine macrotidal system: example of Seine estuary |
title_fullStr |
Time variability of hydrodynamics and potential use of surface water and ocean topography mission in estuarine macrotidal system: example of Seine estuary |
title_full_unstemmed |
Time variability of hydrodynamics and potential use of surface water and ocean topography mission in estuarine macrotidal system: example of Seine estuary |
title_sort |
time variability of hydrodynamics and potential use of surface water and ocean topography mission in estuarine macrotidal system: example of seine estuary |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal-normandie-univ.archives-ouvertes.fr/hal-02070412 https://doi.org/10.1117/1.JRS.12.036008 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
ISSN: 1931-3195 EISSN: 1931-3195 Journal of applied remote sensing https://hal-normandie-univ.archives-ouvertes.fr/hal-02070412 Journal of applied remote sensing, Bellingham, WA : SPIE, 2018, 12 (03), pp.036008. ⟨10.1117/1.JRS.12.036008⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1117/1.JRS.12.036008 hal-02070412 https://hal-normandie-univ.archives-ouvertes.fr/hal-02070412 doi:10.1117/1.JRS.12.036008 |
op_doi |
https://doi.org/10.1117/1.JRS.12.036008 |
container_title |
Journal of Applied Remote Sensing |
container_volume |
12 |
container_issue |
03 |
container_start_page |
1 |
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1766136580882300928 |