On the suitability of the Thorpe–Mason model for calculating sublimation of saltating snow
The Thorpe and Mason (TM) model for calculating the mass lost from a sublimating snow grain is the basis of all existing small- and large-scale estimates of drifting snow sublimation and the associated snow mass balance of polar and alpine regions. We revisit this model to test its validity for calc...
Published in: | The Cryosphere |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2018
|
Subjects: | |
Online Access: | https://doi.org/10.5194/tc-12-3499-2018 https://noa.gwlb.de/receive/cop_mods_00004137 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00004094/tc-12-3499-2018.pdf https://tc.copernicus.org/articles/12/3499/2018/tc-12-3499-2018.pdf |
id |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00004137 |
---|---|
record_format |
openpolar |
spelling |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00004137 2023-05-15T18:32:32+02:00 On the suitability of the Thorpe–Mason model for calculating sublimation of saltating snow Sharma, Varun Comola, Francesco Lehning, Michael 2018-11 electronic https://doi.org/10.5194/tc-12-3499-2018 https://noa.gwlb.de/receive/cop_mods_00004137 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00004094/tc-12-3499-2018.pdf https://tc.copernicus.org/articles/12/3499/2018/tc-12-3499-2018.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-12-3499-2018 https://noa.gwlb.de/receive/cop_mods_00004137 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00004094/tc-12-3499-2018.pdf https://tc.copernicus.org/articles/12/3499/2018/tc-12-3499-2018.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2018 ftnonlinearchiv https://doi.org/10.5194/tc-12-3499-2018 2022-02-08T23:00:16Z The Thorpe and Mason (TM) model for calculating the mass lost from a sublimating snow grain is the basis of all existing small- and large-scale estimates of drifting snow sublimation and the associated snow mass balance of polar and alpine regions. We revisit this model to test its validity for calculating sublimation from saltating snow grains. It is shown that numerical solutions of the unsteady mass and heat balance equations of an individual snow grain reconcile well with the steady-state solution of the TM model, albeit after a transient regime. Using large-eddy simulations (LESs), it is found that the residence time of a typical saltating particle is shorter than the period of the transient regime, implying that using the steady-state solution might be erroneous. For scenarios with equal initial air and particle temperatures of 263.15 K, these errors range from 26 % for low-wind, low-saturation-rate conditions to 38 % for high-wind, high-saturation-rate conditions. With a small temperature difference of 1 K between the air and the snow particles, the errors due to the TM model are already as high as 100 % with errors increasing for larger temperature differences. Article in Journal/Newspaper The Cryosphere Niedersächsisches Online-Archiv NOA The Cryosphere 12 11 3499 3509 |
institution |
Open Polar |
collection |
Niedersächsisches Online-Archiv NOA |
op_collection_id |
ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Sharma, Varun Comola, Francesco Lehning, Michael On the suitability of the Thorpe–Mason model for calculating sublimation of saltating snow |
topic_facet |
article Verlagsveröffentlichung |
description |
The Thorpe and Mason (TM) model for calculating the mass lost from a sublimating snow grain is the basis of all existing small- and large-scale estimates of drifting snow sublimation and the associated snow mass balance of polar and alpine regions. We revisit this model to test its validity for calculating sublimation from saltating snow grains. It is shown that numerical solutions of the unsteady mass and heat balance equations of an individual snow grain reconcile well with the steady-state solution of the TM model, albeit after a transient regime. Using large-eddy simulations (LESs), it is found that the residence time of a typical saltating particle is shorter than the period of the transient regime, implying that using the steady-state solution might be erroneous. For scenarios with equal initial air and particle temperatures of 263.15 K, these errors range from 26 % for low-wind, low-saturation-rate conditions to 38 % for high-wind, high-saturation-rate conditions. With a small temperature difference of 1 K between the air and the snow particles, the errors due to the TM model are already as high as 100 % with errors increasing for larger temperature differences. |
format |
Article in Journal/Newspaper |
author |
Sharma, Varun Comola, Francesco Lehning, Michael |
author_facet |
Sharma, Varun Comola, Francesco Lehning, Michael |
author_sort |
Sharma, Varun |
title |
On the suitability of the Thorpe–Mason model for calculating sublimation of saltating snow |
title_short |
On the suitability of the Thorpe–Mason model for calculating sublimation of saltating snow |
title_full |
On the suitability of the Thorpe–Mason model for calculating sublimation of saltating snow |
title_fullStr |
On the suitability of the Thorpe–Mason model for calculating sublimation of saltating snow |
title_full_unstemmed |
On the suitability of the Thorpe–Mason model for calculating sublimation of saltating snow |
title_sort |
on the suitability of the thorpe–mason model for calculating sublimation of saltating snow |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://doi.org/10.5194/tc-12-3499-2018 https://noa.gwlb.de/receive/cop_mods_00004137 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00004094/tc-12-3499-2018.pdf https://tc.copernicus.org/articles/12/3499/2018/tc-12-3499-2018.pdf |
genre |
The Cryosphere |
genre_facet |
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-12-3499-2018 https://noa.gwlb.de/receive/cop_mods_00004137 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00004094/tc-12-3499-2018.pdf https://tc.copernicus.org/articles/12/3499/2018/tc-12-3499-2018.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-12-3499-2018 |
container_title |
The Cryosphere |
container_volume |
12 |
container_issue |
11 |
container_start_page |
3499 |
op_container_end_page |
3509 |
_version_ |
1766216662081601536 |