Assimilation of virtual wide swath altimetry to improve Arctic river modeling
International audience Global surface water variations are still difficult to monitor with current satellite measurements. The future Surface Water and Ocean Topography (SWOT) mission is designed to address this issue. Its main payload will be a wide swath altimeter which will provide maps of water...
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
2011
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Online Access: | https://hal.science/hal-00575528 https://hal.science/hal-00575528/document https://hal.science/hal-00575528/file/Biancamaria_etal_2011_RSE.pdf https://doi.org/10.1016/j.rse.2010.09.008 |
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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 |
SWOT Wide swath altimetry Hydrologic/hydraulic modeling Data assimilation Kalman filter Kalman smoother Arctic Ob River [SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology [SDE.MCG]Environmental Sciences/Global Changes |
spellingShingle |
SWOT Wide swath altimetry Hydrologic/hydraulic modeling Data assimilation Kalman filter Kalman smoother Arctic Ob River [SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology [SDE.MCG]Environmental Sciences/Global Changes Biancamaria, Sylvain Durand, Michael Andreadis, Kostantinos, M. Bates, Paul Boone, Aaron Mognard, Nelly Rodriguez, Ernesto Alsdorf, Doug Lettenmaier, D. P. Clark, Elizabeth, A. Assimilation of virtual wide swath altimetry to improve Arctic river modeling |
topic_facet |
SWOT Wide swath altimetry Hydrologic/hydraulic modeling Data assimilation Kalman filter Kalman smoother Arctic Ob River [SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology [SDE.MCG]Environmental Sciences/Global Changes |
description |
International audience Global surface water variations are still difficult to monitor with current satellite measurements. The future Surface Water and Ocean Topography (SWOT) mission is designed to address this issue. Its main payload will be a wide swath altimeter which will provide maps of water surface elevations between 78°S and 78°N over a 120 km swath. This study aims to combine coupled hydrologic/hydraulic modeling of an Arctic river with virtual SWOT observations using a local ensemble Kalman smoother to characterize river water depth variations. We assumed that modeling errors are only due to uncertainties in atmospheric forcing fields (precipitation and air temperature) and different SWOT orbits were tested. First, we tested orbits that all have a three day repeat period but differ in terms of their spatial coverage of the study reach; these orbits correspond to the first three months of the mission, which will be dedicated to calibration and validation experiments. For these orbits, the mean spatial Root Mean Square Error (RMSE) in modeled channel water depth decreased by between 29 % and 79 % compared to the modeled RMSE with no assimilation, depending on the spatial coverage. The corresponding mean temporal RMSE decrease was between 54 % and 91 %. We then tested the nominal orbit with a twenty two day repeat period which will be used during the remaining lifetime of the mission. Unlike the three day repeat orbits, this orbit will observe all continental surfaces (except Antartica and the northern part of Greenland) during one repeat period. The assimilation of SWOT observations computed with this nominal orbit into the hydraulic model leads to a decrease of 59 % and 66 % in the mean spatial and temporal RMSE in modeled channel water depth, respectively. These results show the huge potential of the future SWOT mission for land surface hydrology, especially at high latitudes which will be very well sampled during one orbit repeat period. Still, further work is needed to reduce current modeling ... |
author2 |
Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) Byrd Polar Research Center Ohio State University Columbus (OSU) School of Geographical Sciences Bristol University of Bristol Bristol Centre national de recherches météorologiques (CNRM) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) Jet Propulsion Laboratory (JPL) NASA-California Institute of Technology (CALTECH) School of Earth Sciences Department of Civil and Environmental Engineering, University of Washington University of Washington Seattle CNES TOSCA SWOT; NASA's programs in Physical Oceanography and Terrestrial Hydrology; OSU Climate, Water, and Carbon Program; CNES/Noveltis grant. European Project: |
format |
Article in Journal/Newspaper |
author |
Biancamaria, Sylvain Durand, Michael Andreadis, Kostantinos, M. Bates, Paul Boone, Aaron Mognard, Nelly Rodriguez, Ernesto Alsdorf, Doug Lettenmaier, D. P. Clark, Elizabeth, A. |
author_facet |
Biancamaria, Sylvain Durand, Michael Andreadis, Kostantinos, M. Bates, Paul Boone, Aaron Mognard, Nelly Rodriguez, Ernesto Alsdorf, Doug Lettenmaier, D. P. Clark, Elizabeth, A. |
author_sort |
Biancamaria, Sylvain |
title |
Assimilation of virtual wide swath altimetry to improve Arctic river modeling |
title_short |
Assimilation of virtual wide swath altimetry to improve Arctic river modeling |
title_full |
Assimilation of virtual wide swath altimetry to improve Arctic river modeling |
title_fullStr |
Assimilation of virtual wide swath altimetry to improve Arctic river modeling |
title_full_unstemmed |
Assimilation of virtual wide swath altimetry to improve Arctic river modeling |
title_sort |
assimilation of virtual wide swath altimetry to improve arctic river modeling |
publisher |
HAL CCSD |
publishDate |
2011 |
url |
https://hal.science/hal-00575528 https://hal.science/hal-00575528/document https://hal.science/hal-00575528/file/Biancamaria_etal_2011_RSE.pdf https://doi.org/10.1016/j.rse.2010.09.008 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
antartic* Arctic Greenland ob river |
genre_facet |
antartic* Arctic Greenland ob river |
op_source |
ISSN: 0034-4257 EISSN: 1879-0704 Remote Sensing of Environment https://hal.science/hal-00575528 Remote Sensing of Environment, 2011, 115 (2), pp.373-381. ⟨10.1016/j.rse.2010.09.008⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.rse.2010.09.008 hal-00575528 https://hal.science/hal-00575528 https://hal.science/hal-00575528/document https://hal.science/hal-00575528/file/Biancamaria_etal_2011_RSE.pdf doi:10.1016/j.rse.2010.09.008 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.rse.2010.09.008 |
container_title |
Remote Sensing of Environment |
container_volume |
115 |
container_issue |
2 |
container_start_page |
373 |
op_container_end_page |
381 |
_version_ |
1786169086502240256 |
spelling |
ftinsu:oai:HAL:hal-00575528v1 2023-12-24T10:11:42+01:00 Assimilation of virtual wide swath altimetry to improve Arctic river modeling Biancamaria, Sylvain Durand, Michael Andreadis, Kostantinos, M. Bates, Paul Boone, Aaron Mognard, Nelly Rodriguez, Ernesto Alsdorf, Doug Lettenmaier, D. P. Clark, Elizabeth, A. Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) Byrd Polar Research Center Ohio State University Columbus (OSU) School of Geographical Sciences Bristol University of Bristol Bristol Centre national de recherches météorologiques (CNRM) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) Jet Propulsion Laboratory (JPL) NASA-California Institute of Technology (CALTECH) School of Earth Sciences Department of Civil and Environmental Engineering, University of Washington University of Washington Seattle CNES TOSCA SWOT; NASA's programs in Physical Oceanography and Terrestrial Hydrology; OSU Climate, Water, and Carbon Program; CNES/Noveltis grant. European Project: 2011-02 https://hal.science/hal-00575528 https://hal.science/hal-00575528/document https://hal.science/hal-00575528/file/Biancamaria_etal_2011_RSE.pdf https://doi.org/10.1016/j.rse.2010.09.008 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.rse.2010.09.008 hal-00575528 https://hal.science/hal-00575528 https://hal.science/hal-00575528/document https://hal.science/hal-00575528/file/Biancamaria_etal_2011_RSE.pdf doi:10.1016/j.rse.2010.09.008 info:eu-repo/semantics/OpenAccess ISSN: 0034-4257 EISSN: 1879-0704 Remote Sensing of Environment https://hal.science/hal-00575528 Remote Sensing of Environment, 2011, 115 (2), pp.373-381. ⟨10.1016/j.rse.2010.09.008⟩ SWOT Wide swath altimetry Hydrologic/hydraulic modeling Data assimilation Kalman filter Kalman smoother Arctic Ob River [SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology [SDE.MCG]Environmental Sciences/Global Changes info:eu-repo/semantics/article Journal articles 2011 ftinsu https://doi.org/10.1016/j.rse.2010.09.008 2023-11-29T17:22:58Z International audience Global surface water variations are still difficult to monitor with current satellite measurements. The future Surface Water and Ocean Topography (SWOT) mission is designed to address this issue. Its main payload will be a wide swath altimeter which will provide maps of water surface elevations between 78°S and 78°N over a 120 km swath. This study aims to combine coupled hydrologic/hydraulic modeling of an Arctic river with virtual SWOT observations using a local ensemble Kalman smoother to characterize river water depth variations. We assumed that modeling errors are only due to uncertainties in atmospheric forcing fields (precipitation and air temperature) and different SWOT orbits were tested. First, we tested orbits that all have a three day repeat period but differ in terms of their spatial coverage of the study reach; these orbits correspond to the first three months of the mission, which will be dedicated to calibration and validation experiments. For these orbits, the mean spatial Root Mean Square Error (RMSE) in modeled channel water depth decreased by between 29 % and 79 % compared to the modeled RMSE with no assimilation, depending on the spatial coverage. The corresponding mean temporal RMSE decrease was between 54 % and 91 %. We then tested the nominal orbit with a twenty two day repeat period which will be used during the remaining lifetime of the mission. Unlike the three day repeat orbits, this orbit will observe all continental surfaces (except Antartica and the northern part of Greenland) during one repeat period. The assimilation of SWOT observations computed with this nominal orbit into the hydraulic model leads to a decrease of 59 % and 66 % in the mean spatial and temporal RMSE in modeled channel water depth, respectively. These results show the huge potential of the future SWOT mission for land surface hydrology, especially at high latitudes which will be very well sampled during one orbit repeat period. Still, further work is needed to reduce current modeling ... Article in Journal/Newspaper antartic* Arctic Greenland ob river Institut national des sciences de l'Univers: HAL-INSU Arctic Greenland Remote Sensing of Environment 115 2 373 381 |