River discharge estimation from radar altimetry: Assessment of satellite performance, river scales and methods
International audience The ENVISAT, Jason-2 and -3, Sentinel-3A, CryoSat-2, and AltiKa satellite altimeters were used to estimate the discharge of two Arctic rivers: the Ob and Pur in western Siberia. The accuracy of the water height estimates from ENVISAT varied with river size from 0.63 m for the...
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ftunivnantes:oai:HAL:insu-03671096v1 2023-05-15T15:00:46+02:00 River discharge estimation from radar altimetry: Assessment of satellite performance, river scales and methods Zakharova, E. Nielsen, K. Kamenev, G. Kouraev, A. 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) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-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)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS) 2020 https://hal-insu.archives-ouvertes.fr/insu-03671096 https://doi.org/10.1016/j.jhydrol.2020.124561 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jhydrol.2020.124561 insu-03671096 https://hal-insu.archives-ouvertes.fr/insu-03671096 BIBCODE: 2020JHyd.58324561Z doi:10.1016/j.jhydrol.2020.124561 ISSN: 0022-1694 Journal of Hydrology https://hal-insu.archives-ouvertes.fr/insu-03671096 Journal of Hydrology, 2020, 583, ⟨10.1016/j.jhydrol.2020.124561⟩ Altimetry River discharge Rating curves Manning approach Arctic rivers [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2020 ftunivnantes https://doi.org/10.1016/j.jhydrol.2020.124561 2023-02-22T01:57:43Z International audience The ENVISAT, Jason-2 and -3, Sentinel-3A, CryoSat-2, and AltiKa satellite altimeters were used to estimate the discharge of two Arctic rivers: the Ob and Pur in western Siberia. The accuracy of the water height estimates from ENVISAT varied with river size from 0.63 m for the Ob (~2 km in width) to 1.1 m for the Pur (~0.5 km in width). A new method for water level estimation combining the CryoSat-2, AltiKa, and Sentinel-3A altimeters provided better height accuracy (0.49 m for the Ob). The rating curve method of discharge estimation outperforms the Manning formulation, on the Ob, with a root mean square error (RMSE) of 13% vs 20% for daily discharge and 1% vs 5% for annual discharge. Sensitivity analysis performed on the Manning formulation showed high sensitivity to the river depth parameterisation. A functional relationship was identified between the depth of rivers, in the north of western Siberia, and their widths and deposits types. The combination, for the Ob, of the rating curve method with the multi-satellite water level retrieval algorithm provided higher discharge accuracy than previous studies relying on satellite measurements, on numerical modelling or on their combination. A synthesis of worldwide river altimetry studies supported our finding that the accuracy of altimetric discharge estimations decreases for narrower rivers. The rating curve method applied to Jason 2/3 height measurements allows estimation of daily discharges with RMSE of 18% for the wide Ob River but 38% for the narrow Pur River. Article in Journal/Newspaper Arctic ob river Siberia Université de Nantes: HAL-UNIV-NANTES Arctic Journal of Hydrology 583 124561 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
Altimetry River discharge Rating curves Manning approach Arctic rivers [SDU]Sciences of the Universe [physics] |
spellingShingle |
Altimetry River discharge Rating curves Manning approach Arctic rivers [SDU]Sciences of the Universe [physics] Zakharova, E. Nielsen, K. Kamenev, G. Kouraev, A. River discharge estimation from radar altimetry: Assessment of satellite performance, river scales and methods |
topic_facet |
Altimetry River discharge Rating curves Manning approach Arctic rivers [SDU]Sciences of the Universe [physics] |
description |
International audience The ENVISAT, Jason-2 and -3, Sentinel-3A, CryoSat-2, and AltiKa satellite altimeters were used to estimate the discharge of two Arctic rivers: the Ob and Pur in western Siberia. The accuracy of the water height estimates from ENVISAT varied with river size from 0.63 m for the Ob (~2 km in width) to 1.1 m for the Pur (~0.5 km in width). A new method for water level estimation combining the CryoSat-2, AltiKa, and Sentinel-3A altimeters provided better height accuracy (0.49 m for the Ob). The rating curve method of discharge estimation outperforms the Manning formulation, on the Ob, with a root mean square error (RMSE) of 13% vs 20% for daily discharge and 1% vs 5% for annual discharge. Sensitivity analysis performed on the Manning formulation showed high sensitivity to the river depth parameterisation. A functional relationship was identified between the depth of rivers, in the north of western Siberia, and their widths and deposits types. The combination, for the Ob, of the rating curve method with the multi-satellite water level retrieval algorithm provided higher discharge accuracy than previous studies relying on satellite measurements, on numerical modelling or on their combination. A synthesis of worldwide river altimetry studies supported our finding that the accuracy of altimetric discharge estimations decreases for narrower rivers. The rating curve method applied to Jason 2/3 height measurements allows estimation of daily discharges with RMSE of 18% for the wide Ob River but 38% for the narrow Pur River. |
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) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-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)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Zakharova, E. Nielsen, K. Kamenev, G. Kouraev, A. |
author_facet |
Zakharova, E. Nielsen, K. Kamenev, G. Kouraev, A. |
author_sort |
Zakharova, E. |
title |
River discharge estimation from radar altimetry: Assessment of satellite performance, river scales and methods |
title_short |
River discharge estimation from radar altimetry: Assessment of satellite performance, river scales and methods |
title_full |
River discharge estimation from radar altimetry: Assessment of satellite performance, river scales and methods |
title_fullStr |
River discharge estimation from radar altimetry: Assessment of satellite performance, river scales and methods |
title_full_unstemmed |
River discharge estimation from radar altimetry: Assessment of satellite performance, river scales and methods |
title_sort |
river discharge estimation from radar altimetry: assessment of satellite performance, river scales and methods |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal-insu.archives-ouvertes.fr/insu-03671096 https://doi.org/10.1016/j.jhydrol.2020.124561 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic ob river Siberia |
genre_facet |
Arctic ob river Siberia |
op_source |
ISSN: 0022-1694 Journal of Hydrology https://hal-insu.archives-ouvertes.fr/insu-03671096 Journal of Hydrology, 2020, 583, ⟨10.1016/j.jhydrol.2020.124561⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jhydrol.2020.124561 insu-03671096 https://hal-insu.archives-ouvertes.fr/insu-03671096 BIBCODE: 2020JHyd.58324561Z doi:10.1016/j.jhydrol.2020.124561 |
op_doi |
https://doi.org/10.1016/j.jhydrol.2020.124561 |
container_title |
Journal of Hydrology |
container_volume |
583 |
container_start_page |
124561 |
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1766332832816300032 |