Articles | Volume 13, issue 9
The Cryosphere, 13, 2345–2359, 2019
https://doi.org/10.5194/tc-13-2345-2019
The Cryosphere, 13, 2345–2359, 2019
https://doi.org/10.5194/tc-13-2345-2019

Research article 06 Sep 2019

Research article | 06 Sep 2019

Motion of dust particles in dry snow under temperature gradient metamorphism

Pascal Hagenmuller et al.

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Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (review by editor) (23 Jun 2019) by Martin Schneebeli
AR by Pascal Hagenmuller on behalf of the Authors (24 Jun 2019)  Author's response    Manuscript
ED: Publish subject to minor revisions (review by editor) (29 Jun 2019) by Martin Schneebeli
AR by Pascal Hagenmuller on behalf of the Authors (05 Jul 2019)  Author's response    Manuscript
ED: Publish subject to minor revisions (review by editor) (16 Jul 2019) by Martin Schneebeli
AR by Pascal Hagenmuller on behalf of the Authors (07 Aug 2019)  Author's response    Manuscript
ED: Publish as is (08 Aug 2019) by Martin Schneebeli
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Short summary
Light–absorbing particles (LAPs, e.g. dust or black carbon) in snow are a potent climate forcing agent. Their presence darkens the snow surface and leads to higher solar energy absorption. Several studies have quantified this radiative impact by assuming that LAPs were motionless in dry snow, without any clear evidence of this assumption. Using time–lapse X–ray tomography, we show that temperature gradient metamorphism of snow induces downward motion of LAPs, leading to self–cleaning of snow.