A simulation of a large-scale drifting snowstorm in the turbulent boundary layer
Drifting snowstorms are an important aeolian process that reshape alpine glaciers and polar ice shelves, and they may also affect the climate system and hydrological cycle since flying snow particles exchange considerable mass and energy with air flow. Prior studies have rarely considered full-scale...
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Online Access: | https://doi.org/10.5194/tc-12-3841-2018 https://doaj.org/article/e0da33af5b9e4f1499d71ac2cc297ffc |
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ftdoajarticles:oai:doaj.org/article:e0da33af5b9e4f1499d71ac2cc297ffc 2023-05-15T16:41:59+02:00 A simulation of a large-scale drifting snowstorm in the turbulent boundary layer Z. Wang S. Jia 2018-12-01T00:00:00Z https://doi.org/10.5194/tc-12-3841-2018 https://doaj.org/article/e0da33af5b9e4f1499d71ac2cc297ffc EN eng Copernicus Publications https://www.the-cryosphere.net/12/3841/2018/tc-12-3841-2018.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-12-3841-2018 1994-0416 1994-0424 https://doaj.org/article/e0da33af5b9e4f1499d71ac2cc297ffc The Cryosphere, Vol 12, Pp 3841-3851 (2018) Environmental sciences GE1-350 Geology QE1-996.5 article 2018 ftdoajarticles https://doi.org/10.5194/tc-12-3841-2018 2022-12-31T09:17:27Z Drifting snowstorms are an important aeolian process that reshape alpine glaciers and polar ice shelves, and they may also affect the climate system and hydrological cycle since flying snow particles exchange considerable mass and energy with air flow. Prior studies have rarely considered full-scale drifting snowstorms in the turbulent boundary layer; thus, the transportation feature of snow flow higher in the air and its contribution are largely unknown. In this study, a large-eddy simulation is combined with a subgrid-scale velocity model to simulate the atmospheric turbulent boundary layer, and a Lagrangian particle tracking method is adopted to track the trajectories of snow particles. A drifting snowstorm that is hundreds of meters in depth and exhibits obvious spatial structures is produced. The snow transport flux profile at high altitude, previously not observed, is quite different from that near the surface; thus, the extrapolated transport flux profile may largely underestimate the total transport flux. At the same time, the development of a drifting snowstorm involves three typical stages, rapid growth, gentle growth, and equilibrium, in which large-scale updrafts and subgrid-scale fluctuating velocities basically dominate the first and second stages, respectively. This research provides an effective way to gain an insight into natural drifting snowstorms. Article in Journal/Newspaper Ice Shelves The Cryosphere Directory of Open Access Journals: DOAJ Articles The Cryosphere 12 12 3841 3851 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Geology QE1-996.5 |
spellingShingle |
Environmental sciences GE1-350 Geology QE1-996.5 Z. Wang S. Jia A simulation of a large-scale drifting snowstorm in the turbulent boundary layer |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
description |
Drifting snowstorms are an important aeolian process that reshape alpine glaciers and polar ice shelves, and they may also affect the climate system and hydrological cycle since flying snow particles exchange considerable mass and energy with air flow. Prior studies have rarely considered full-scale drifting snowstorms in the turbulent boundary layer; thus, the transportation feature of snow flow higher in the air and its contribution are largely unknown. In this study, a large-eddy simulation is combined with a subgrid-scale velocity model to simulate the atmospheric turbulent boundary layer, and a Lagrangian particle tracking method is adopted to track the trajectories of snow particles. A drifting snowstorm that is hundreds of meters in depth and exhibits obvious spatial structures is produced. The snow transport flux profile at high altitude, previously not observed, is quite different from that near the surface; thus, the extrapolated transport flux profile may largely underestimate the total transport flux. At the same time, the development of a drifting snowstorm involves three typical stages, rapid growth, gentle growth, and equilibrium, in which large-scale updrafts and subgrid-scale fluctuating velocities basically dominate the first and second stages, respectively. This research provides an effective way to gain an insight into natural drifting snowstorms. |
format |
Article in Journal/Newspaper |
author |
Z. Wang S. Jia |
author_facet |
Z. Wang S. Jia |
author_sort |
Z. Wang |
title |
A simulation of a large-scale drifting snowstorm in the turbulent boundary layer |
title_short |
A simulation of a large-scale drifting snowstorm in the turbulent boundary layer |
title_full |
A simulation of a large-scale drifting snowstorm in the turbulent boundary layer |
title_fullStr |
A simulation of a large-scale drifting snowstorm in the turbulent boundary layer |
title_full_unstemmed |
A simulation of a large-scale drifting snowstorm in the turbulent boundary layer |
title_sort |
simulation of a large-scale drifting snowstorm in the turbulent boundary layer |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://doi.org/10.5194/tc-12-3841-2018 https://doaj.org/article/e0da33af5b9e4f1499d71ac2cc297ffc |
genre |
Ice Shelves The Cryosphere |
genre_facet |
Ice Shelves The Cryosphere |
op_source |
The Cryosphere, Vol 12, Pp 3841-3851 (2018) |
op_relation |
https://www.the-cryosphere.net/12/3841/2018/tc-12-3841-2018.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-12-3841-2018 1994-0416 1994-0424 https://doaj.org/article/e0da33af5b9e4f1499d71ac2cc297ffc |
op_doi |
https://doi.org/10.5194/tc-12-3841-2018 |
container_title |
The Cryosphere |
container_volume |
12 |
container_issue |
12 |
container_start_page |
3841 |
op_container_end_page |
3851 |
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1766032449879408640 |