Numerical modelling of sublimation on snow and comparison with field measurements
Various field observations of surface-hoar formation were carried out with measurements of vapor sublimation rate and meteorological conditions from 1994 to 1996 in a mountainous area of northern Hokkaido,Japan. The sublimation rate seemed to increase with wind speed when the relative humidity was h...
Published in: | Annals of Glaciology |
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International Glaciological Society
2017
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ftkitamiit:oai:kitami-it.repo.nii.ac.jp:00008892 2023-05-15T13:29:14+02:00 Numerical modelling of sublimation on snow and comparison with field measurements Hachikubo, Akihiro 2017 application/pdf https://kitami-it.repo.nii.ac.jp/record/8892/files/Annals of Glaciology_32_p27-32.pdf eng eng International Glaciological Society https://doi.org/10.3189/172756401781819265 Annals of Glaciology 32 27 0260-3055 https://kitami-it.repo.nii.ac.jp/record/8892/files/Annals of Glaciology_32_p27-32.pdf c the Author(s) [year] 2001 open access 2017 ftkitamiit https://doi.org/10.3189/172756401781819265 2023-02-26T09:17:10Z Various field observations of surface-hoar formation were carried out with measurements of vapor sublimation rate and meteorological conditions from 1994 to 1996 in a mountainous area of northern Hokkaido,Japan. The sublimation rate seemed to increase with wind speed when the relative humidity was high, whereas the sublimation rate changed from positive to negative as the wind speed increased when the relative humidity was low (60–70%RH). These results were explained with a numerical model (called the Simple model) for the heat balance at the snow surface; the results of the model showed that there is a specific wind speed which maximizes the sublimation rate when the relative humidity is low, and indicated that the sublimation rate becomes large under humid conditions (>90%RH) and if wind speeds are increasing in the range 0.5–3.5 m s–1. The heat balance at the snow surface reproduced by another snow model, Crocus, agreed well with the observation results. However, Crocus overestimated the sublimation rate by about 1.3 × 10–6 kg m–2 s–1 when surface hoar formed, and underestimated snow surface temperature by several degrees. journal article Other/Unknown Material Annals of Glaciology Kitami Institute of Technology Repository (KIT-R) Annals of Glaciology 32 27 32 |
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Open Polar |
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Kitami Institute of Technology Repository (KIT-R) |
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ftkitamiit |
language |
English |
description |
Various field observations of surface-hoar formation were carried out with measurements of vapor sublimation rate and meteorological conditions from 1994 to 1996 in a mountainous area of northern Hokkaido,Japan. The sublimation rate seemed to increase with wind speed when the relative humidity was high, whereas the sublimation rate changed from positive to negative as the wind speed increased when the relative humidity was low (60–70%RH). These results were explained with a numerical model (called the Simple model) for the heat balance at the snow surface; the results of the model showed that there is a specific wind speed which maximizes the sublimation rate when the relative humidity is low, and indicated that the sublimation rate becomes large under humid conditions (>90%RH) and if wind speeds are increasing in the range 0.5–3.5 m s–1. The heat balance at the snow surface reproduced by another snow model, Crocus, agreed well with the observation results. However, Crocus overestimated the sublimation rate by about 1.3 × 10–6 kg m–2 s–1 when surface hoar formed, and underestimated snow surface temperature by several degrees. journal article |
author |
Hachikubo, Akihiro |
spellingShingle |
Hachikubo, Akihiro Numerical modelling of sublimation on snow and comparison with field measurements |
author_facet |
Hachikubo, Akihiro |
author_sort |
Hachikubo, Akihiro |
title |
Numerical modelling of sublimation on snow and comparison with field measurements |
title_short |
Numerical modelling of sublimation on snow and comparison with field measurements |
title_full |
Numerical modelling of sublimation on snow and comparison with field measurements |
title_fullStr |
Numerical modelling of sublimation on snow and comparison with field measurements |
title_full_unstemmed |
Numerical modelling of sublimation on snow and comparison with field measurements |
title_sort |
numerical modelling of sublimation on snow and comparison with field measurements |
publisher |
International Glaciological Society |
publishDate |
2017 |
url |
https://kitami-it.repo.nii.ac.jp/record/8892/files/Annals of Glaciology_32_p27-32.pdf |
genre |
Annals of Glaciology |
genre_facet |
Annals of Glaciology |
op_relation |
https://doi.org/10.3189/172756401781819265 Annals of Glaciology 32 27 0260-3055 https://kitami-it.repo.nii.ac.jp/record/8892/files/Annals of Glaciology_32_p27-32.pdf |
op_rights |
c the Author(s) [year] 2001 open access |
op_doi |
https://doi.org/10.3189/172756401781819265 |
container_title |
Annals of Glaciology |
container_volume |
32 |
container_start_page |
27 |
op_container_end_page |
32 |
_version_ |
1765999444172472320 |