Multi-time-scale hydroclimate dynamics of a regional watershed and links to large-scale atmospheric circulation: Application to the Seine river catchment, France
(IF 3.73; Q1) International audience In the present context of global changes, considerable efforts have been deployed by the hydrological scientific community to improve our understanding of the impacts of climate fluctuations on water resources. Both observational and modeling studies have been ex...
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Online Access: | https://hal.science/hal-01715931 https://doi.org/10.1016/j.jhydrol.2017.01.008 |
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ftnormandieuniv:oai:HAL:hal-01715931v1 2024-04-14T08:16:07+00:00 Multi-time-scale hydroclimate dynamics of a regional watershed and links to large-scale atmospheric circulation: Application to the Seine river catchment, France Massei, Nicolas Dieppois, Bastien Hannah, M. Lavers, D.A. Fossa, M. Laignel, Benoît, B. Debret, Maxime 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) University of Birmingham Birmingham European Centre for Medium-Range Weather Forecasts (ECMWF) 2017-03 https://hal.science/hal-01715931 https://doi.org/10.1016/j.jhydrol.2017.01.008 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jhydrol.2017.01.008 hal-01715931 https://hal.science/hal-01715931 doi:10.1016/j.jhydrol.2017.01.008 ISSN: 0022-1694 Journal of Hydrology https://hal.science/hal-01715931 Journal of Hydrology, 2017, 546, pp.262 - 275. ⟨10.1016/j.jhydrol.2017.01.008⟩ Hydrological variability Atmospheric circulation Multiresolution analysis Empirical statistical downscaling [SDE.MCG]Environmental Sciences/Global Changes [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2017 ftnormandieuniv https://doi.org/10.1016/j.jhydrol.2017.01.008 2024-03-21T17:03:28Z (IF 3.73; Q1) International audience In the present context of global changes, considerable efforts have been deployed by the hydrological scientific community to improve our understanding of the impacts of climate fluctuations on water resources. Both observational and modeling studies have been extensively employed to characterize hydrological changes and trends, assess the impact of climate variability or provide future scenarios of water resources. In the aim of a better understanding of hydrological changes, it is of crucial importance to determine how and to what extent trends and long-term oscillations detectable in hydrological variables are linked to global climate oscillations.In this work, we develop an approach associating correlation between large and local scales, empirical statistical downscaling and wavelet multiresolution decomposition of monthly precipitation and streamflow over the Seine river watershed, and the North Atlantic sea level pressure (SLP) in order to gain additional insights on the atmospheric patterns associated with the regional hydrology. We hypothesized that: (i) atmospheric patterns may change according to the different temporal wavelengths defining the variability of the signals; and (ii) definition of those hydrological/circulation relationships for each temporal wavelength may improve the determination of large-scale predictors of local variations.The results showed that the links between large and local scales were not necessarily constant according to time-scale (i.e. for the different frequencies characterizing the signals), resulting in changing spatial patterns across scales. This was then taken into account by developing an empirical statistical downscaling (ESD) modeling approach, which integrated discrete wavelet multiresolution analysis for reconstructing monthly regional hydrometeorological processes (predictand: precipitation and streamflow on the Seine river catchment) based on a large-scale predictor (SLP over the Euro-Atlantic sector). This approach ... Article in Journal/Newspaper North Atlantic Normandie Université: HAL Journal of Hydrology 546 262 275 |
institution |
Open Polar |
collection |
Normandie Université: HAL |
op_collection_id |
ftnormandieuniv |
language |
English |
topic |
Hydrological variability Atmospheric circulation Multiresolution analysis Empirical statistical downscaling [SDE.MCG]Environmental Sciences/Global Changes [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
Hydrological variability Atmospheric circulation Multiresolution analysis Empirical statistical downscaling [SDE.MCG]Environmental Sciences/Global Changes [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Massei, Nicolas Dieppois, Bastien Hannah, M. Lavers, D.A. Fossa, M. Laignel, Benoît, B. Debret, Maxime Multi-time-scale hydroclimate dynamics of a regional watershed and links to large-scale atmospheric circulation: Application to the Seine river catchment, France |
topic_facet |
Hydrological variability Atmospheric circulation Multiresolution analysis Empirical statistical downscaling [SDE.MCG]Environmental Sciences/Global Changes [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
(IF 3.73; Q1) International audience In the present context of global changes, considerable efforts have been deployed by the hydrological scientific community to improve our understanding of the impacts of climate fluctuations on water resources. Both observational and modeling studies have been extensively employed to characterize hydrological changes and trends, assess the impact of climate variability or provide future scenarios of water resources. In the aim of a better understanding of hydrological changes, it is of crucial importance to determine how and to what extent trends and long-term oscillations detectable in hydrological variables are linked to global climate oscillations.In this work, we develop an approach associating correlation between large and local scales, empirical statistical downscaling and wavelet multiresolution decomposition of monthly precipitation and streamflow over the Seine river watershed, and the North Atlantic sea level pressure (SLP) in order to gain additional insights on the atmospheric patterns associated with the regional hydrology. We hypothesized that: (i) atmospheric patterns may change according to the different temporal wavelengths defining the variability of the signals; and (ii) definition of those hydrological/circulation relationships for each temporal wavelength may improve the determination of large-scale predictors of local variations.The results showed that the links between large and local scales were not necessarily constant according to time-scale (i.e. for the different frequencies characterizing the signals), resulting in changing spatial patterns across scales. This was then taken into account by developing an empirical statistical downscaling (ESD) modeling approach, which integrated discrete wavelet multiresolution analysis for reconstructing monthly regional hydrometeorological processes (predictand: precipitation and streamflow on the Seine river catchment) based on a large-scale predictor (SLP over the Euro-Atlantic sector). This approach ... |
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) University of Birmingham Birmingham European Centre for Medium-Range Weather Forecasts (ECMWF) |
format |
Article in Journal/Newspaper |
author |
Massei, Nicolas Dieppois, Bastien Hannah, M. Lavers, D.A. Fossa, M. Laignel, Benoît, B. Debret, Maxime |
author_facet |
Massei, Nicolas Dieppois, Bastien Hannah, M. Lavers, D.A. Fossa, M. Laignel, Benoît, B. Debret, Maxime |
author_sort |
Massei, Nicolas |
title |
Multi-time-scale hydroclimate dynamics of a regional watershed and links to large-scale atmospheric circulation: Application to the Seine river catchment, France |
title_short |
Multi-time-scale hydroclimate dynamics of a regional watershed and links to large-scale atmospheric circulation: Application to the Seine river catchment, France |
title_full |
Multi-time-scale hydroclimate dynamics of a regional watershed and links to large-scale atmospheric circulation: Application to the Seine river catchment, France |
title_fullStr |
Multi-time-scale hydroclimate dynamics of a regional watershed and links to large-scale atmospheric circulation: Application to the Seine river catchment, France |
title_full_unstemmed |
Multi-time-scale hydroclimate dynamics of a regional watershed and links to large-scale atmospheric circulation: Application to the Seine river catchment, France |
title_sort |
multi-time-scale hydroclimate dynamics of a regional watershed and links to large-scale atmospheric circulation: application to the seine river catchment, france |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal.science/hal-01715931 https://doi.org/10.1016/j.jhydrol.2017.01.008 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 0022-1694 Journal of Hydrology https://hal.science/hal-01715931 Journal of Hydrology, 2017, 546, pp.262 - 275. ⟨10.1016/j.jhydrol.2017.01.008⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jhydrol.2017.01.008 hal-01715931 https://hal.science/hal-01715931 doi:10.1016/j.jhydrol.2017.01.008 |
op_doi |
https://doi.org/10.1016/j.jhydrol.2017.01.008 |
container_title |
Journal of Hydrology |
container_volume |
546 |
container_start_page |
262 |
op_container_end_page |
275 |
_version_ |
1796314693259755520 |