Glacier contribution to streamflow in two headwaters of the Huasco River, Dry Andes of Chile
International audience Quantitative assessment of glacier contribution to present-day streamflow is a prerequisite to the anticipation of climate change impact on water resources in the Dry Andes. In this paper we focus on two glaciated headwater catchments of the Huasco Basin (Chile, 29° S). The co...
Published in: | The Cryosphere |
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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-00651019 https://hal.science/hal-00651019/document https://hal.science/hal-00651019/file/tc-5-1099-2011.pdf https://doi.org/10.5194/tc-5-1099-2011 |
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ftunivnantes:oai:HAL:hal-00651019v1 |
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Open Polar |
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Université de Nantes: HAL-UNIV-NANTES |
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English |
topic |
[SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology [SDE.MCG]Environmental Sciences/Global Changes [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
spellingShingle |
[SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology [SDE.MCG]Environmental Sciences/Global Changes [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology Gascoin, Simon Kinnard, Christophe Ponce, Rodrigo Macdonell, Shelley Lhermitte, Stefaan Rabatel, Antoine Glacier contribution to streamflow in two headwaters of the Huasco River, Dry Andes of Chile |
topic_facet |
[SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology [SDE.MCG]Environmental Sciences/Global Changes [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
description |
International audience Quantitative assessment of glacier contribution to present-day streamflow is a prerequisite to the anticipation of climate change impact on water resources in the Dry Andes. In this paper we focus on two glaciated headwater catchments of the Huasco Basin (Chile, 29° S). The combination of glacier monitoring data for five glaciers (Toro 1, Toro 2, Esperanza, Guanaco, Estrecho and Ortigas) with five automatic streamflow records at sites with glacier coverage of 0.4 to 11 % allows the estimation of the mean annual glacier contribution to discharge between 2003/2004 and 2007/2008 hydrological years. In addition, direct manual measurements of glacier runoff were conducted in summer at the snouts of four glaciers, which provide the instantaneous contribution of glacier meltwater to stream runoff during summer. The results show that the mean annual glacier contribution to streamflow ranges between 3.3 and 23 %, which is greater than the glaciated fraction of the catchments. We argue that glacier contribution is partly enhanced by the effect of snowdrift from the non-glacier area to the glacier surface. Glacier mass loss is evident over the study period, with a mean of −0.84 m w.e. yr−1 for the period 2003/2004-2007/2008, and also contributes to increase glacier runoff. An El Niño episode in 2002 resulted in high snow accumulation, modifying the hydrological regime and probably reducing the glacier contribution in favor of seasonal snowmelt during the subsequent 2002/2003 hydrological year. At the hourly timescale, summertime glacier contributions are highly variable in space and time, revealing large differences in effective melting rates between glaciers and glacierets (from 1 mm w.e. h−1 to 6 mm w.e. h−1). |
author2 |
Centre d'études spatiales de la biosphère (CESBIO) 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 -Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Centro de Estudios Avanzados en Zonas Aridas (CEAZA) Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Gascoin, Simon Kinnard, Christophe Ponce, Rodrigo Macdonell, Shelley Lhermitte, Stefaan Rabatel, Antoine |
author_facet |
Gascoin, Simon Kinnard, Christophe Ponce, Rodrigo Macdonell, Shelley Lhermitte, Stefaan Rabatel, Antoine |
author_sort |
Gascoin, Simon |
title |
Glacier contribution to streamflow in two headwaters of the Huasco River, Dry Andes of Chile |
title_short |
Glacier contribution to streamflow in two headwaters of the Huasco River, Dry Andes of Chile |
title_full |
Glacier contribution to streamflow in two headwaters of the Huasco River, Dry Andes of Chile |
title_fullStr |
Glacier contribution to streamflow in two headwaters of the Huasco River, Dry Andes of Chile |
title_full_unstemmed |
Glacier contribution to streamflow in two headwaters of the Huasco River, Dry Andes of Chile |
title_sort |
glacier contribution to streamflow in two headwaters of the huasco river, dry andes of chile |
publisher |
HAL CCSD |
publishDate |
2011 |
url |
https://hal.science/hal-00651019 https://hal.science/hal-00651019/document https://hal.science/hal-00651019/file/tc-5-1099-2011.pdf https://doi.org/10.5194/tc-5-1099-2011 |
long_lat |
ENVELOPE(-56.983,-56.983,-63.400,-63.400) ENVELOPE(-60.783,-60.783,-62.467,-62.467) |
geographic |
Esperanza Estrecho |
geographic_facet |
Esperanza Estrecho |
genre |
The Cryosphere |
genre_facet |
The Cryosphere |
op_source |
ISSN: 1994-0424 EISSN: 1994-0416 The Cryosphere https://hal.science/hal-00651019 The Cryosphere, 2011, 5, pp.1099-1113. ⟨10.5194/tc-5-1099-2011⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-5-1099-2011 hal-00651019 https://hal.science/hal-00651019 https://hal.science/hal-00651019/document https://hal.science/hal-00651019/file/tc-5-1099-2011.pdf doi:10.5194/tc-5-1099-2011 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/tc-5-1099-2011 |
container_title |
The Cryosphere |
container_volume |
5 |
container_issue |
4 |
container_start_page |
1099 |
op_container_end_page |
1113 |
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1766216257675198464 |
spelling |
ftunivnantes:oai:HAL:hal-00651019v1 2023-05-15T18:32:11+02:00 Glacier contribution to streamflow in two headwaters of the Huasco River, Dry Andes of Chile Gascoin, Simon Kinnard, Christophe Ponce, Rodrigo Macdonell, Shelley Lhermitte, Stefaan Rabatel, Antoine Centre d'études spatiales de la biosphère (CESBIO) 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 -Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Centro de Estudios Avanzados en Zonas Aridas (CEAZA) Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) 2011 https://hal.science/hal-00651019 https://hal.science/hal-00651019/document https://hal.science/hal-00651019/file/tc-5-1099-2011.pdf https://doi.org/10.5194/tc-5-1099-2011 en eng HAL CCSD Copernicus info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-5-1099-2011 hal-00651019 https://hal.science/hal-00651019 https://hal.science/hal-00651019/document https://hal.science/hal-00651019/file/tc-5-1099-2011.pdf doi:10.5194/tc-5-1099-2011 info:eu-repo/semantics/OpenAccess ISSN: 1994-0424 EISSN: 1994-0416 The Cryosphere https://hal.science/hal-00651019 The Cryosphere, 2011, 5, pp.1099-1113. ⟨10.5194/tc-5-1099-2011⟩ [SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology [SDE.MCG]Environmental Sciences/Global Changes [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology info:eu-repo/semantics/article Journal articles 2011 ftunivnantes https://doi.org/10.5194/tc-5-1099-2011 2023-03-01T00:23:32Z International audience Quantitative assessment of glacier contribution to present-day streamflow is a prerequisite to the anticipation of climate change impact on water resources in the Dry Andes. In this paper we focus on two glaciated headwater catchments of the Huasco Basin (Chile, 29° S). The combination of glacier monitoring data for five glaciers (Toro 1, Toro 2, Esperanza, Guanaco, Estrecho and Ortigas) with five automatic streamflow records at sites with glacier coverage of 0.4 to 11 % allows the estimation of the mean annual glacier contribution to discharge between 2003/2004 and 2007/2008 hydrological years. In addition, direct manual measurements of glacier runoff were conducted in summer at the snouts of four glaciers, which provide the instantaneous contribution of glacier meltwater to stream runoff during summer. The results show that the mean annual glacier contribution to streamflow ranges between 3.3 and 23 %, which is greater than the glaciated fraction of the catchments. We argue that glacier contribution is partly enhanced by the effect of snowdrift from the non-glacier area to the glacier surface. Glacier mass loss is evident over the study period, with a mean of −0.84 m w.e. yr−1 for the period 2003/2004-2007/2008, and also contributes to increase glacier runoff. An El Niño episode in 2002 resulted in high snow accumulation, modifying the hydrological regime and probably reducing the glacier contribution in favor of seasonal snowmelt during the subsequent 2002/2003 hydrological year. At the hourly timescale, summertime glacier contributions are highly variable in space and time, revealing large differences in effective melting rates between glaciers and glacierets (from 1 mm w.e. h−1 to 6 mm w.e. h−1). Article in Journal/Newspaper The Cryosphere Université de Nantes: HAL-UNIV-NANTES Esperanza ENVELOPE(-56.983,-56.983,-63.400,-63.400) Estrecho ENVELOPE(-60.783,-60.783,-62.467,-62.467) The Cryosphere 5 4 1099 1113 |