The Community Firn Model (CFM) v1.0
Models that simulate the evolution of polar firn are important for several applications in glaciology, including converting ice-sheet elevation change measurements to mass change and interpreting climate records in ice cores. We have developed the Community Firn Model (CFM), an open-source, modular...
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ftdoajarticles:oai:doaj.org/article:302c826af847433cbd3ea6eff9b9dd6d 2023-05-15T16:29:27+02:00 The Community Firn Model (CFM) v1.0 C. M. Stevens V. Verjans J. M. D. Lundin E. C. Kahle A. N. Horlings B. I. Horlings E. D. Waddington 2020-09-01T00:00:00Z https://doi.org/10.5194/gmd-13-4355-2020 https://doaj.org/article/302c826af847433cbd3ea6eff9b9dd6d EN eng Copernicus Publications https://gmd.copernicus.org/articles/13/4355/2020/gmd-13-4355-2020.pdf https://doaj.org/toc/1991-959X https://doaj.org/toc/1991-9603 doi:10.5194/gmd-13-4355-2020 1991-959X 1991-9603 https://doaj.org/article/302c826af847433cbd3ea6eff9b9dd6d Geoscientific Model Development, Vol 13, Pp 4355-4377 (2020) Geology QE1-996.5 article 2020 ftdoajarticles https://doi.org/10.5194/gmd-13-4355-2020 2022-12-31T06:36:46Z Models that simulate the evolution of polar firn are important for several applications in glaciology, including converting ice-sheet elevation change measurements to mass change and interpreting climate records in ice cores. We have developed the Community Firn Model (CFM), an open-source, modular model framework designed to simulate numerous physical processes in firn. The modules include firn densification, heat transport, meltwater percolation and refreezing, water isotope diffusion, and firn-air diffusion. The CFM is designed so that new modules can be added with ease. In this paper, we first describe the CFM and its modules. We then demonstrate the CFM's usefulness in two model applications that utilize two of its novel aspects. The CFM currently has the ability to run any of 13 previously published firn densification models, and in the first application we compare those models' results when they are forced with regional climate model outputs for Summit, Greenland. The results show that the models do not agree well (spread greater than 10 %) when predicting depth-integrated porosity, firn age, or the trend in surface elevation change. In the second application, we show that the CFM's coupled firn-air and firn densification models can simulate noble gas records from an ice core better than a firn-air model alone. Article in Journal/Newspaper Greenland ice core Ice Sheet Directory of Open Access Journals: DOAJ Articles Greenland Geoscientific Model Development 13 9 4355 4377 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Geology QE1-996.5 |
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Geology QE1-996.5 C. M. Stevens V. Verjans J. M. D. Lundin E. C. Kahle A. N. Horlings B. I. Horlings E. D. Waddington The Community Firn Model (CFM) v1.0 |
topic_facet |
Geology QE1-996.5 |
description |
Models that simulate the evolution of polar firn are important for several applications in glaciology, including converting ice-sheet elevation change measurements to mass change and interpreting climate records in ice cores. We have developed the Community Firn Model (CFM), an open-source, modular model framework designed to simulate numerous physical processes in firn. The modules include firn densification, heat transport, meltwater percolation and refreezing, water isotope diffusion, and firn-air diffusion. The CFM is designed so that new modules can be added with ease. In this paper, we first describe the CFM and its modules. We then demonstrate the CFM's usefulness in two model applications that utilize two of its novel aspects. The CFM currently has the ability to run any of 13 previously published firn densification models, and in the first application we compare those models' results when they are forced with regional climate model outputs for Summit, Greenland. The results show that the models do not agree well (spread greater than 10 %) when predicting depth-integrated porosity, firn age, or the trend in surface elevation change. In the second application, we show that the CFM's coupled firn-air and firn densification models can simulate noble gas records from an ice core better than a firn-air model alone. |
format |
Article in Journal/Newspaper |
author |
C. M. Stevens V. Verjans J. M. D. Lundin E. C. Kahle A. N. Horlings B. I. Horlings E. D. Waddington |
author_facet |
C. M. Stevens V. Verjans J. M. D. Lundin E. C. Kahle A. N. Horlings B. I. Horlings E. D. Waddington |
author_sort |
C. M. Stevens |
title |
The Community Firn Model (CFM) v1.0 |
title_short |
The Community Firn Model (CFM) v1.0 |
title_full |
The Community Firn Model (CFM) v1.0 |
title_fullStr |
The Community Firn Model (CFM) v1.0 |
title_full_unstemmed |
The Community Firn Model (CFM) v1.0 |
title_sort |
community firn model (cfm) v1.0 |
publisher |
Copernicus Publications |
publishDate |
2020 |
url |
https://doi.org/10.5194/gmd-13-4355-2020 https://doaj.org/article/302c826af847433cbd3ea6eff9b9dd6d |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland ice core Ice Sheet |
genre_facet |
Greenland ice core Ice Sheet |
op_source |
Geoscientific Model Development, Vol 13, Pp 4355-4377 (2020) |
op_relation |
https://gmd.copernicus.org/articles/13/4355/2020/gmd-13-4355-2020.pdf https://doaj.org/toc/1991-959X https://doaj.org/toc/1991-9603 doi:10.5194/gmd-13-4355-2020 1991-959X 1991-9603 https://doaj.org/article/302c826af847433cbd3ea6eff9b9dd6d |
op_doi |
https://doi.org/10.5194/gmd-13-4355-2020 |
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Geoscientific Model Development |
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13 |
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9 |
container_start_page |
4355 |
op_container_end_page |
4377 |
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1766019154175852544 |