Firn model intercomparison experiment (FirnMICE)
International audience Evolution of cold dry snow and firn plays important roles in glaciology; however, the physical formulation of a densification law is still an active research topic. We forced eight firn-densification models and one seasonal-snow model in six different experiments by imposing s...
Published in: | Journal of Glaciology |
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Main Authors: | , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2017
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Subjects: | |
Online Access: | https://hal.archives-ouvertes.fr/hal-03226722 https://hal.archives-ouvertes.fr/hal-03226722/document https://hal.archives-ouvertes.fr/hal-03226722/file/div-class-title-firn-model-intercomparison-experiment-firnmice-div.pdf https://doi.org/10.1017/jog.2016.114 |
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ftunivnantes:oai:HAL:hal-03226722v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
ice-sheet modelling mass balance polar firn [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
spellingShingle |
ice-sheet modelling mass balance polar firn [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology Lundin, Jessica M.D. Stevens, C. Max Arthern, Robert Buizert, Christo Orsi, Anais Ligtenberg, Stefan R.M. Simonsen, Sebastian Cummings, Evan Essery, Richard Leahy, Will Harris, Paul Helsen, Michiel Waddington, Edwin Firn model intercomparison experiment (FirnMICE) |
topic_facet |
ice-sheet modelling mass balance polar firn [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
description |
International audience Evolution of cold dry snow and firn plays important roles in glaciology; however, the physical formulation of a densification law is still an active research topic. We forced eight firn-densification models and one seasonal-snow model in six different experiments by imposing step changes in temperature and accumulation-rate boundary conditions; all of the boundary conditions were chosen to simulate firn densification in cold, dry environments. While the intended application of the participating models varies, they are describing the same physical system and should in principle yield the same solutions. The firn models all produce plausible depth-density profiles, but the model outputs in both steady state and transient modes differ for quantities that are of interest in ice core and altimetry research. These differences demonstrate that firn-densification models are incorrectly or incompletely representing physical processes. We quantitatively characterize the differences among the results from the various models. For example, we find depth-integrated porosity is unlikely to be inferred with confidence from a firn model to better than 2 m in steady state at a specific site with known accumulation rate and temperature. Firn Model Intercomparison Experiment can provide a benchmark of results for future models, provide a basis to quantify model uncertainties and guide future directions of firn-densification modeling. |
author2 |
Department of Earth and Space Sciences Seattle University of Washington Seattle British Antarctic Survey (BAS) Natural Environment Research Council (NERC) College of Earth, Ocean and Atmospheric Sciences Corvallis (CEOAS) Oregon State University (OSU) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Institute for Marine and Atmospheric Research Utrecht (IMAU) Utrecht University Utrecht National Space Institute Lyngby (DTU Space) Danmarks Tekniske Universitet = Technical University of Denmark (DTU) University of Montana School of Geosciences Edinburgh University of Edinburgh |
format |
Article in Journal/Newspaper |
author |
Lundin, Jessica M.D. Stevens, C. Max Arthern, Robert Buizert, Christo Orsi, Anais Ligtenberg, Stefan R.M. Simonsen, Sebastian Cummings, Evan Essery, Richard Leahy, Will Harris, Paul Helsen, Michiel Waddington, Edwin |
author_facet |
Lundin, Jessica M.D. Stevens, C. Max Arthern, Robert Buizert, Christo Orsi, Anais Ligtenberg, Stefan R.M. Simonsen, Sebastian Cummings, Evan Essery, Richard Leahy, Will Harris, Paul Helsen, Michiel Waddington, Edwin |
author_sort |
Lundin, Jessica M.D. |
title |
Firn model intercomparison experiment (FirnMICE) |
title_short |
Firn model intercomparison experiment (FirnMICE) |
title_full |
Firn model intercomparison experiment (FirnMICE) |
title_fullStr |
Firn model intercomparison experiment (FirnMICE) |
title_full_unstemmed |
Firn model intercomparison experiment (FirnMICE) |
title_sort |
firn model intercomparison experiment (firnmice) |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal.archives-ouvertes.fr/hal-03226722 https://hal.archives-ouvertes.fr/hal-03226722/document https://hal.archives-ouvertes.fr/hal-03226722/file/div-class-title-firn-model-intercomparison-experiment-firnmice-div.pdf https://doi.org/10.1017/jog.2016.114 |
genre |
ice core Ice Sheet Journal of Glaciology |
genre_facet |
ice core Ice Sheet Journal of Glaciology |
op_source |
ISSN: 0022-1430 EISSN: 1727-5652 Journal of Glaciology https://hal.archives-ouvertes.fr/hal-03226722 Journal of Glaciology, International Glaciological Society, 2017, 63 (239), pp.401-422. ⟨10.1017/jog.2016.114⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1017/jog.2016.114 hal-03226722 https://hal.archives-ouvertes.fr/hal-03226722 https://hal.archives-ouvertes.fr/hal-03226722/document https://hal.archives-ouvertes.fr/hal-03226722/file/div-class-title-firn-model-intercomparison-experiment-firnmice-div.pdf doi:10.1017/jog.2016.114 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1017/jog.2016.114 |
container_title |
Journal of Glaciology |
container_volume |
63 |
container_issue |
239 |
container_start_page |
401 |
op_container_end_page |
422 |
_version_ |
1766029593349718016 |
spelling |
ftunivnantes:oai:HAL:hal-03226722v1 2023-05-15T16:39:16+02:00 Firn model intercomparison experiment (FirnMICE) Lundin, Jessica M.D. Stevens, C. Max Arthern, Robert Buizert, Christo Orsi, Anais Ligtenberg, Stefan R.M. Simonsen, Sebastian Cummings, Evan Essery, Richard Leahy, Will Harris, Paul Helsen, Michiel Waddington, Edwin Department of Earth and Space Sciences Seattle University of Washington Seattle British Antarctic Survey (BAS) Natural Environment Research Council (NERC) College of Earth, Ocean and Atmospheric Sciences Corvallis (CEOAS) Oregon State University (OSU) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Institute for Marine and Atmospheric Research Utrecht (IMAU) Utrecht University Utrecht National Space Institute Lyngby (DTU Space) Danmarks Tekniske Universitet = Technical University of Denmark (DTU) University of Montana School of Geosciences Edinburgh University of Edinburgh 2017 https://hal.archives-ouvertes.fr/hal-03226722 https://hal.archives-ouvertes.fr/hal-03226722/document https://hal.archives-ouvertes.fr/hal-03226722/file/div-class-title-firn-model-intercomparison-experiment-firnmice-div.pdf https://doi.org/10.1017/jog.2016.114 en eng HAL CCSD International Glaciological Society info:eu-repo/semantics/altIdentifier/doi/10.1017/jog.2016.114 hal-03226722 https://hal.archives-ouvertes.fr/hal-03226722 https://hal.archives-ouvertes.fr/hal-03226722/document https://hal.archives-ouvertes.fr/hal-03226722/file/div-class-title-firn-model-intercomparison-experiment-firnmice-div.pdf doi:10.1017/jog.2016.114 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 0022-1430 EISSN: 1727-5652 Journal of Glaciology https://hal.archives-ouvertes.fr/hal-03226722 Journal of Glaciology, International Glaciological Society, 2017, 63 (239), pp.401-422. ⟨10.1017/jog.2016.114⟩ ice-sheet modelling mass balance polar firn [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology info:eu-repo/semantics/article Journal articles 2017 ftunivnantes https://doi.org/10.1017/jog.2016.114 2022-11-02T00:36:01Z International audience Evolution of cold dry snow and firn plays important roles in glaciology; however, the physical formulation of a densification law is still an active research topic. We forced eight firn-densification models and one seasonal-snow model in six different experiments by imposing step changes in temperature and accumulation-rate boundary conditions; all of the boundary conditions were chosen to simulate firn densification in cold, dry environments. While the intended application of the participating models varies, they are describing the same physical system and should in principle yield the same solutions. The firn models all produce plausible depth-density profiles, but the model outputs in both steady state and transient modes differ for quantities that are of interest in ice core and altimetry research. These differences demonstrate that firn-densification models are incorrectly or incompletely representing physical processes. We quantitatively characterize the differences among the results from the various models. For example, we find depth-integrated porosity is unlikely to be inferred with confidence from a firn model to better than 2 m in steady state at a specific site with known accumulation rate and temperature. Firn Model Intercomparison Experiment can provide a benchmark of results for future models, provide a basis to quantify model uncertainties and guide future directions of firn-densification modeling. Article in Journal/Newspaper ice core Ice Sheet Journal of Glaciology Université de Nantes: HAL-UNIV-NANTES Journal of Glaciology 63 239 401 422 |