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  1. 防災科研関係論文

Evaluation of updated physical snowpack model SMAP

https://nied-repo.bosai.go.jp/records/5927
https://nied-repo.bosai.go.jp/records/5927
c4cf37ab-dd69-4371-9fd6-30d420dbf7dd
Item type researchmap(1)
公開日 2023-03-30
タイトル
言語 en
タイトル Evaluation of updated physical snowpack model SMAP
言語
言語 eng
著者 Masashi Niwano

× Masashi Niwano

en Masashi Niwano

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Teruo Aoki

× Teruo Aoki

en Teruo Aoki

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Katsuyuki Kuchiki

× Katsuyuki Kuchiki

en Katsuyuki Kuchiki

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Masahiro Hosaka

× Masahiro Hosaka

en Masahiro Hosaka

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Yuji Kodama

× Yuji Kodama

en Yuji Kodama

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Satoru Yamaguchi

× Satoru Yamaguchi

en Satoru Yamaguchi

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Hiroki Motoyoshi

× Hiroki Motoyoshi

en Hiroki Motoyoshi

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Yukiyoshi Iwata

× Yukiyoshi Iwata

en Yukiyoshi Iwata

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抄録
内容記述タイプ Other
内容記述 The ID multilayered physical snowpack model Snow Metamorphism and Albedo Process (SMAP), which was originally designed for climate studies, is now updated by incorporating a detailed water movement scheme, realistic snow settlement process and limitation for the Richardson number to ensure minimum turbulent exchanges even under highly stable atmospheric conditions. The evaluation of the updated version of SMAP was first performed using the data obtained at Sapporo, Japan, during the 2007-2009 winters and the effectiveness of these updates was demonstrated in terms of snow depth and snow surface temperature. However, we pointed out that the choice of maximum Richardson number should be further examined. To test the reliability of SMAP under different climate conditions, we applied it to Naga oka, Japan, during the 2011-2012 winter. At Nagaoka, we performed snow-soil-coupled simulations, because ground heat flux was not available during the study period. For this purpose, we developed a soil submodel for SMAP. Consequently, we confirmed that the updated version performed better than the old version in terms of mass balance simulations at Nagaoka too. Although mass balance-related parameters of the snowpack simulated by the updated version agreed well with observations during the accumulation period, the model substantially overestimated snow depth, as well as column-integrated snow water equivalent during the ablation period. By discussing the reasons for these discrepancies, we highlighted that further investigation on snow-melt processes for thick seasonal snowpack is necessary. c Japanese Society of Snow and Ice.
言語 en
書誌情報 en : Bulletin of Glaciological Research

巻 32, 号 1, p. 65-78, 発行日 2014
出版者
言語 en
出版者 Japanese Society of Snow and Ice
ISSN
収録物識別子タイプ ISSN
収録物識別子 1345-3807
DOI
関連識別子 10.5331/bgr.32.65
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