Motion of dust particles in dry snow under temperature gradient metamorphism
The deposition of light-absorbing particles (LAPs) such as mineral dust and black carbon on snow is responsible for a highly effective climate forcing, through darkening of the snow surface and associated feedbacks. The interplay between post-depositional snow transformation (metamorphism) and the d...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00000020 2023-05-15T15:03:07+02:00 Motion of dust particles in dry snow under temperature gradient metamorphism Hagenmuller, Pascal Flin, Frederic Dumont, Marie Tuzet, François Peinke, Isabel Lapalus, Philippe Dufour, Anne Roulle, Jacques Pézard, Laurent Voisin, Didier Ando, Edward Rolland du Roscoat, Sabine Charrier, Pascal 2019-09 electronic https://doi.org/10.5194/tc-13-2345-2019 https://noa.gwlb.de/receive/cop_mods_00000020 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00000011/tc-13-2345-2019.pdf https://tc.copernicus.org/articles/13/2345/2019/tc-13-2345-2019.pdf eng eng Copernicus Publications The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-13-2345-2019 https://noa.gwlb.de/receive/cop_mods_00000020 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00000011/tc-13-2345-2019.pdf https://tc.copernicus.org/articles/13/2345/2019/tc-13-2345-2019.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2019 ftnonlinearchiv https://doi.org/10.5194/tc-13-2345-2019 2022-02-08T23:02:30Z The deposition of light-absorbing particles (LAPs) such as mineral dust and black carbon on snow is responsible for a highly effective climate forcing, through darkening of the snow surface and associated feedbacks. The interplay between post-depositional snow transformation (metamorphism) and the dynamics of LAPs in snow remains largely unknown. We obtained time series of X-ray tomography images of dust-contaminated samples undergoing dry snow metamorphism at around −2 ∘C. They provide the first observational evidence that temperature gradient metamorphism induces dust particle motion in snow, while no movement is observed under isothermal conditions. Under temperature gradient metamorphism, dust particles can enter the ice matrix due to sublimation–condensation processes and spread down mainly by falling into the pore space. Overall, such motions might reduce the radiative impact of dust in snow, in particular in arctic regions where temperature gradient metamorphism prevails. Article in Journal/Newspaper Arctic black carbon The Cryosphere Niedersächsisches Online-Archiv NOA Arctic The Cryosphere 13 9 2345 2359 |
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Niedersächsisches Online-Archiv NOA |
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English |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Hagenmuller, Pascal Flin, Frederic Dumont, Marie Tuzet, François Peinke, Isabel Lapalus, Philippe Dufour, Anne Roulle, Jacques Pézard, Laurent Voisin, Didier Ando, Edward Rolland du Roscoat, Sabine Charrier, Pascal Motion of dust particles in dry snow under temperature gradient metamorphism |
topic_facet |
article Verlagsveröffentlichung |
description |
The deposition of light-absorbing particles (LAPs) such as mineral dust and black carbon on snow is responsible for a highly effective climate forcing, through darkening of the snow surface and associated feedbacks. The interplay between post-depositional snow transformation (metamorphism) and the dynamics of LAPs in snow remains largely unknown. We obtained time series of X-ray tomography images of dust-contaminated samples undergoing dry snow metamorphism at around −2 ∘C. They provide the first observational evidence that temperature gradient metamorphism induces dust particle motion in snow, while no movement is observed under isothermal conditions. Under temperature gradient metamorphism, dust particles can enter the ice matrix due to sublimation–condensation processes and spread down mainly by falling into the pore space. Overall, such motions might reduce the radiative impact of dust in snow, in particular in arctic regions where temperature gradient metamorphism prevails. |
format |
Article in Journal/Newspaper |
author |
Hagenmuller, Pascal Flin, Frederic Dumont, Marie Tuzet, François Peinke, Isabel Lapalus, Philippe Dufour, Anne Roulle, Jacques Pézard, Laurent Voisin, Didier Ando, Edward Rolland du Roscoat, Sabine Charrier, Pascal |
author_facet |
Hagenmuller, Pascal Flin, Frederic Dumont, Marie Tuzet, François Peinke, Isabel Lapalus, Philippe Dufour, Anne Roulle, Jacques Pézard, Laurent Voisin, Didier Ando, Edward Rolland du Roscoat, Sabine Charrier, Pascal |
author_sort |
Hagenmuller, Pascal |
title |
Motion of dust particles in dry snow under temperature gradient metamorphism |
title_short |
Motion of dust particles in dry snow under temperature gradient metamorphism |
title_full |
Motion of dust particles in dry snow under temperature gradient metamorphism |
title_fullStr |
Motion of dust particles in dry snow under temperature gradient metamorphism |
title_full_unstemmed |
Motion of dust particles in dry snow under temperature gradient metamorphism |
title_sort |
motion of dust particles in dry snow under temperature gradient metamorphism |
publisher |
Copernicus Publications |
publishDate |
2019 |
url |
https://doi.org/10.5194/tc-13-2345-2019 https://noa.gwlb.de/receive/cop_mods_00000020 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00000011/tc-13-2345-2019.pdf https://tc.copernicus.org/articles/13/2345/2019/tc-13-2345-2019.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic black carbon The Cryosphere |
genre_facet |
Arctic black carbon The Cryosphere |
op_relation |
The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-13-2345-2019 https://noa.gwlb.de/receive/cop_mods_00000020 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00000011/tc-13-2345-2019.pdf https://tc.copernicus.org/articles/13/2345/2019/tc-13-2345-2019.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/tc-13-2345-2019 |
container_title |
The Cryosphere |
container_volume |
13 |
container_issue |
9 |
container_start_page |
2345 |
op_container_end_page |
2359 |
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