Impact of forcing on sublimation simulations for a high mountain catchment in the semiarid Andes
International audience In the semiarid Andes of Chile, farmers and industry in the cordillera lowlands depend on water from snowmelt, as annual rainfall is insufficient to meet their needs. Despite the importance of snow cover for water resources in this region, understanding of snow depth distribut...
Published in: | The Cryosphere |
---|---|
Main Authors: | , , , , , |
Other Authors: | , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2020
|
Subjects: | |
Online Access: | https://hal.inrae.fr/hal-02620196 https://hal.inrae.fr/hal-02620196/document https://hal.inrae.fr/hal-02620196/file/Publis20-cesbio_001_reveillet_impact_1.pdf https://doi.org/10.5194/tc-14-147-2020 |
id |
ftccsdartic:oai:HAL:hal-02620196v1 |
---|---|
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 |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences Réveillet, Marion Macdonell, Shelley Gascoin, Simon Kinnard, Christophe Lhermitte, Stef Schaffer, Nicole Impact of forcing on sublimation simulations for a high mountain catchment in the semiarid Andes |
topic_facet |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience In the semiarid Andes of Chile, farmers and industry in the cordillera lowlands depend on water from snowmelt, as annual rainfall is insufficient to meet their needs. Despite the importance of snow cover for water resources in this region, understanding of snow depth distribution and snow mass balance is limited. Whilst the effect of wind on snow cover pattern distribution has been assessed, the relative importance of melt versus sublimation has only been studied at the point scale over one catchment. Analyzing relative ablation rates and evaluating uncertainties are critical for understanding snow depth sensitivity to variations in climate and simulating the evolution of the snowpack over a larger area and over time. Using a distributed snowpack model (SnowModel), this study aims to simulate melt and sublimation rates over the instrumented watershed of La Laguna (513 km(2), 3150-5630 ma.s.l., 30 degrees S, 70 degrees W), during two hydrologically contrasting years (i.e., dry vs. wet). The model is calibrated and forced with meteorological data from nine Automatic Weather Stations (AWSs) located in the watershed and atmospheric simulation outputs from the Weather Research and Forecasting (WRF) model. Results of simulations indicate first a large uncertainty in sublimation-to-melt ratios depending on the forcing as the WRF data have a cold bias and overestimate precipitation in this region. These input differences cause a doubling of the sublimation-to-melt ratio using WRF forcing inputs compared to AWS. Therefore, the use of WRF model output in such environments must be carefully adjusted so as to reduce errors caused by inherent bias in the model data. For both input datasets, the simulations indicate a similar sublimation fraction for both study years, but ratios of sublimation to melt vary with elevation as melt rates decrease with elevation due to decreasing temperatures. Finally results indicate that snow persistence during the spring period decreases the ratio of sublimation due to ... |
author2 |
Centro de Estudios Avanzados en Zonas Aridas (CEAZA) Centre d'Etudes de la Neige (CEN) Centre national de recherches météorologiques (CNRM) Institut national des sciences de l'Univers (INSU - CNRS)-Météo France-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Météo France-Centre National de la Recherche Scientifique (CNRS) Université Fédérale Toulouse Midi-Pyrénées 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) 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) Département des sciences de l'environnement Université du Québec à Montréal = University of Québec in Montréal (UQAM) Delft University of Technology (TU Delft) Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT) : R16A10003 Coquimbo regional government : FIC-R(2015) BIP 30403127-0 Cooperation bilaterale - Quebec-Chili Ministere des Relations Internationales et Francophonie |
format |
Article in Journal/Newspaper |
author |
Réveillet, Marion Macdonell, Shelley Gascoin, Simon Kinnard, Christophe Lhermitte, Stef Schaffer, Nicole |
author_facet |
Réveillet, Marion Macdonell, Shelley Gascoin, Simon Kinnard, Christophe Lhermitte, Stef Schaffer, Nicole |
author_sort |
Réveillet, Marion |
title |
Impact of forcing on sublimation simulations for a high mountain catchment in the semiarid Andes |
title_short |
Impact of forcing on sublimation simulations for a high mountain catchment in the semiarid Andes |
title_full |
Impact of forcing on sublimation simulations for a high mountain catchment in the semiarid Andes |
title_fullStr |
Impact of forcing on sublimation simulations for a high mountain catchment in the semiarid Andes |
title_full_unstemmed |
Impact of forcing on sublimation simulations for a high mountain catchment in the semiarid Andes |
title_sort |
impact of forcing on sublimation simulations for a high mountain catchment in the semiarid andes |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.inrae.fr/hal-02620196 https://hal.inrae.fr/hal-02620196/document https://hal.inrae.fr/hal-02620196/file/Publis20-cesbio_001_reveillet_impact_1.pdf https://doi.org/10.5194/tc-14-147-2020 |
genre |
The Cryosphere |
genre_facet |
The Cryosphere |
op_source |
ISSN: 1994-0424 EISSN: 1994-0416 The Cryosphere https://hal.inrae.fr/hal-02620196 The Cryosphere, Copernicus 2020, 14 (1), pp.147-163. ⟨10.5194/tc-14-147-2020⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-14-147-2020 hal-02620196 https://hal.inrae.fr/hal-02620196 https://hal.inrae.fr/hal-02620196/document https://hal.inrae.fr/hal-02620196/file/Publis20-cesbio_001_reveillet_impact_1.pdf doi:10.5194/tc-14-147-2020 PRODINRA: 493649 WOS: 000508197500003 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/tc-14-147-2020 |
container_title |
The Cryosphere |
container_volume |
14 |
container_issue |
1 |
container_start_page |
147 |
op_container_end_page |
163 |
_version_ |
1766216280866553856 |
spelling |
ftccsdartic:oai:HAL:hal-02620196v1 2023-05-15T18:32:12+02:00 Impact of forcing on sublimation simulations for a high mountain catchment in the semiarid Andes Réveillet, Marion Macdonell, Shelley Gascoin, Simon Kinnard, Christophe Lhermitte, Stef Schaffer, Nicole Centro de Estudios Avanzados en Zonas Aridas (CEAZA) Centre d'Etudes de la Neige (CEN) Centre national de recherches météorologiques (CNRM) Institut national des sciences de l'Univers (INSU - CNRS)-Météo France-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Météo France-Centre National de la Recherche Scientifique (CNRS) Université Fédérale Toulouse Midi-Pyrénées 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) 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) Département des sciences de l'environnement Université du Québec à Montréal = University of Québec in Montréal (UQAM) Delft University of Technology (TU Delft) Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT) : R16A10003 Coquimbo regional government : FIC-R(2015) BIP 30403127-0 Cooperation bilaterale - Quebec-Chili Ministere des Relations Internationales et Francophonie 2020 https://hal.inrae.fr/hal-02620196 https://hal.inrae.fr/hal-02620196/document https://hal.inrae.fr/hal-02620196/file/Publis20-cesbio_001_reveillet_impact_1.pdf https://doi.org/10.5194/tc-14-147-2020 en eng HAL CCSD Copernicus info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-14-147-2020 hal-02620196 https://hal.inrae.fr/hal-02620196 https://hal.inrae.fr/hal-02620196/document https://hal.inrae.fr/hal-02620196/file/Publis20-cesbio_001_reveillet_impact_1.pdf doi:10.5194/tc-14-147-2020 PRODINRA: 493649 WOS: 000508197500003 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 1994-0424 EISSN: 1994-0416 The Cryosphere https://hal.inrae.fr/hal-02620196 The Cryosphere, Copernicus 2020, 14 (1), pp.147-163. ⟨10.5194/tc-14-147-2020⟩ [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2020 ftccsdartic https://doi.org/10.5194/tc-14-147-2020 2021-11-07T01:06:18Z International audience In the semiarid Andes of Chile, farmers and industry in the cordillera lowlands depend on water from snowmelt, as annual rainfall is insufficient to meet their needs. Despite the importance of snow cover for water resources in this region, understanding of snow depth distribution and snow mass balance is limited. Whilst the effect of wind on snow cover pattern distribution has been assessed, the relative importance of melt versus sublimation has only been studied at the point scale over one catchment. Analyzing relative ablation rates and evaluating uncertainties are critical for understanding snow depth sensitivity to variations in climate and simulating the evolution of the snowpack over a larger area and over time. Using a distributed snowpack model (SnowModel), this study aims to simulate melt and sublimation rates over the instrumented watershed of La Laguna (513 km(2), 3150-5630 ma.s.l., 30 degrees S, 70 degrees W), during two hydrologically contrasting years (i.e., dry vs. wet). The model is calibrated and forced with meteorological data from nine Automatic Weather Stations (AWSs) located in the watershed and atmospheric simulation outputs from the Weather Research and Forecasting (WRF) model. Results of simulations indicate first a large uncertainty in sublimation-to-melt ratios depending on the forcing as the WRF data have a cold bias and overestimate precipitation in this region. These input differences cause a doubling of the sublimation-to-melt ratio using WRF forcing inputs compared to AWS. Therefore, the use of WRF model output in such environments must be carefully adjusted so as to reduce errors caused by inherent bias in the model data. For both input datasets, the simulations indicate a similar sublimation fraction for both study years, but ratios of sublimation to melt vary with elevation as melt rates decrease with elevation due to decreasing temperatures. Finally results indicate that snow persistence during the spring period decreases the ratio of sublimation due to ... Article in Journal/Newspaper The Cryosphere Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) The Cryosphere 14 1 147 163 |