Incorporating moisture content in surface energy balance modeling of a debris-covered glacier

International audience Few surface energy balance models for debriscovered glaciers account for the presence of moisture in the debris, which invariably affects the debris layer's thermal properties and, in turn, the surface energy balance and subdebris melt of a debris-covered glacier. We adap...

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Published in:The Cryosphere
Main Authors: Giese, Alexandra, Boone, Aaron, Anthony, Wagnon, Patrick, Hawley, Robert
Other Authors: Centre national de recherches météorologiques (CNRM), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), 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-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)
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 2020
Subjects:
Online Access:https://hal.science/hal-03043603
https://hal.science/hal-03043603/document
https://hal.science/hal-03043603/file/giese_et_al.pdf
https://doi.org/10.5194/tc-14-1555-2020
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spelling ftutoulouse3hal:oai:HAL:hal-03043603v1 2024-09-15T18:38:56+00:00 Incorporating moisture content in surface energy balance modeling of a debris-covered glacier Giese, Alexandra Boone, Aaron, Anthony Wagnon, Patrick Hawley, Robert Centre national de recherches météorologiques (CNRM) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) 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-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) 2020-05-13 https://hal.science/hal-03043603 https://hal.science/hal-03043603/document https://hal.science/hal-03043603/file/giese_et_al.pdf https://doi.org/10.5194/tc-14-1555-2020 en eng HAL CCSD Copernicus info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-14-1555-2020 hal-03043603 https://hal.science/hal-03043603 https://hal.science/hal-03043603/document https://hal.science/hal-03043603/file/giese_et_al.pdf doi:10.5194/tc-14-1555-2020 info:eu-repo/semantics/OpenAccess ISSN: 1994-0424 EISSN: 1994-0416 The Cryosphere https://hal.science/hal-03043603 The Cryosphere, 2020, 14, pp.1555 - 1577. ⟨10.5194/tc-14-1555-2020⟩ [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2020 ftutoulouse3hal https://doi.org/10.5194/tc-14-1555-2020 2024-06-25T00:14:42Z International audience Few surface energy balance models for debriscovered glaciers account for the presence of moisture in the debris, which invariably affects the debris layer's thermal properties and, in turn, the surface energy balance and subdebris melt of a debris-covered glacier. We adapted the interactions between soil, biosphere, and atmosphere (ISBA) land surface model within the SURFace EXternalisée (SURFEX) platform to represent glacier debris rather than soil (referred to hereafter as ISBA-DEB). The new ISBA-DEB model includes the varying content, transport, and state of moisture in debris with depth and through time. It robustly simulates not only the thermal evolution of the glacier-debris-snow column but also moisture transport and phase changes within the debris-and how these, in turn, affect conductive and latent heat fluxes. We discuss the key developments in the adapted ISBA-DEB and demonstrate the capabilities of the model, including how the time-and depth-varying thermal conductivity and specific heat capacity depend on evolving temperature and moisture. Sensitivity tests emphasize the importance of accurately constraining the roughness lengths and surface slope. Emissivity, in comparison to other tested parameters, has less of an effect on melt. ISBA-DEB builds on existing work to represent the energy balance of a supraglacial debris layer through time in its novel application of a land surface model to debris-covered glaciers. Comparison of measured and simulated debris temperatures suggests that ISBA-DEB includes some-but not all-processes relevant to melt under highly permeable debris. Future work, informed by further observations, should explore the importance of advection and vapor transfer in the energy balance. Article in Journal/Newspaper The Cryosphere Université Toulouse III - Paul Sabatier: HAL-UPS The Cryosphere 14 5 1555 1577
institution Open Polar
collection Université Toulouse III - Paul Sabatier: HAL-UPS
op_collection_id ftutoulouse3hal
language English
topic [SDE]Environmental Sciences
spellingShingle [SDE]Environmental Sciences
Giese, Alexandra
Boone, Aaron, Anthony
Wagnon, Patrick
Hawley, Robert
Incorporating moisture content in surface energy balance modeling of a debris-covered glacier
topic_facet [SDE]Environmental Sciences
description International audience Few surface energy balance models for debriscovered glaciers account for the presence of moisture in the debris, which invariably affects the debris layer's thermal properties and, in turn, the surface energy balance and subdebris melt of a debris-covered glacier. We adapted the interactions between soil, biosphere, and atmosphere (ISBA) land surface model within the SURFace EXternalisée (SURFEX) platform to represent glacier debris rather than soil (referred to hereafter as ISBA-DEB). The new ISBA-DEB model includes the varying content, transport, and state of moisture in debris with depth and through time. It robustly simulates not only the thermal evolution of the glacier-debris-snow column but also moisture transport and phase changes within the debris-and how these, in turn, affect conductive and latent heat fluxes. We discuss the key developments in the adapted ISBA-DEB and demonstrate the capabilities of the model, including how the time-and depth-varying thermal conductivity and specific heat capacity depend on evolving temperature and moisture. Sensitivity tests emphasize the importance of accurately constraining the roughness lengths and surface slope. Emissivity, in comparison to other tested parameters, has less of an effect on melt. ISBA-DEB builds on existing work to represent the energy balance of a supraglacial debris layer through time in its novel application of a land surface model to debris-covered glaciers. Comparison of measured and simulated debris temperatures suggests that ISBA-DEB includes some-but not all-processes relevant to melt under highly permeable debris. Future work, informed by further observations, should explore the importance of advection and vapor transfer in the energy balance.
author2 Centre national de recherches météorologiques (CNRM)
Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP)
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-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)
format Article in Journal/Newspaper
author Giese, Alexandra
Boone, Aaron, Anthony
Wagnon, Patrick
Hawley, Robert
author_facet Giese, Alexandra
Boone, Aaron, Anthony
Wagnon, Patrick
Hawley, Robert
author_sort Giese, Alexandra
title Incorporating moisture content in surface energy balance modeling of a debris-covered glacier
title_short Incorporating moisture content in surface energy balance modeling of a debris-covered glacier
title_full Incorporating moisture content in surface energy balance modeling of a debris-covered glacier
title_fullStr Incorporating moisture content in surface energy balance modeling of a debris-covered glacier
title_full_unstemmed Incorporating moisture content in surface energy balance modeling of a debris-covered glacier
title_sort incorporating moisture content in surface energy balance modeling of a debris-covered glacier
publisher HAL CCSD
publishDate 2020
url https://hal.science/hal-03043603
https://hal.science/hal-03043603/document
https://hal.science/hal-03043603/file/giese_et_al.pdf
https://doi.org/10.5194/tc-14-1555-2020
genre The Cryosphere
genre_facet The Cryosphere
op_source ISSN: 1994-0424
EISSN: 1994-0416
The Cryosphere
https://hal.science/hal-03043603
The Cryosphere, 2020, 14, pp.1555 - 1577. ⟨10.5194/tc-14-1555-2020⟩
op_relation info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-14-1555-2020
hal-03043603
https://hal.science/hal-03043603
https://hal.science/hal-03043603/document
https://hal.science/hal-03043603/file/giese_et_al.pdf
doi:10.5194/tc-14-1555-2020
op_rights info:eu-repo/semantics/OpenAccess
op_doi https://doi.org/10.5194/tc-14-1555-2020
container_title The Cryosphere
container_volume 14
container_issue 5
container_start_page 1555
op_container_end_page 1577
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