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  1. 防災科研関係論文

Bulk volumetric liquid water content in a seasonal snowpack: modeling its dynamics in different climatic conditions

https://nied-repo.bosai.go.jp/records/4223
https://nied-repo.bosai.go.jp/records/4223
3105a163-270c-4749-b1a8-2510a23f7f22
Item type researchmap(1)
公開日 2023-03-30
タイトル
言語 en
タイトル Bulk volumetric liquid water content in a seasonal snowpack: modeling its dynamics in different climatic conditions
言語
言語 eng
著者 Francesco Avanzi

× Francesco Avanzi

en Francesco Avanzi

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Satoru Yamaguchi

× Satoru Yamaguchi

en Satoru Yamaguchi

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Hiroyuki Hirashima

× Hiroyuki Hirashima

en Hiroyuki Hirashima

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Carlo De Michele

× Carlo De Michele

en Carlo De Michele

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抄録
内容記述タイプ Other
内容記述 d We focus on the dynamics of volumetric liquid water content in seasonal snow covers. This is a key variable describing the fate of snowpacks during the melting season. However, its measurement and/or prediction by means of models at high spatial and temporal resolutions is still difficult due to both practical and theoretical reasons. To overcome these limitations in operational applications, we test the capability of a one-dimensional model to predict the dynamics of bulk volumetric liquid water content during a snow season. Multi-year data collected in three experimental sites in japan are used as an evaluation. These sites are subjected to different climatic conditions. The model requires the calibration of one or two parameters, according to the degree of detail used. Either a simple temperature-index or a coupled melt-freeze temperature-index approach are considered to predict melting and/or melt-freeze dynamics of liquid water. Results show that, if melt-freeze dynamics are modeled, median absolute differences between data and predictions are consistently lower than 1 vol% at the sites where data of liquid water content are available. In addition, we find also that the model predicts correctly a dry condition in 80% of the observed cases at a site where calibration data are scarce. At the same site, observed isothermal conditions of the snow cover at 0 degrees C correspond to predictions of bulk volumetric liquid water content that are greater than 0. (C) 2015 Elsevier Ltd. All rights reserved.
言語 en
書誌情報 en : ADVANCES IN WATER RESOURCES

巻 86, p. 1-13
出版者
言語 en
出版者 ELSEVIER SCI LTD
ISSN
収録物識別子タイプ EISSN
収録物識別子 1872-9657
DOI
関連識別子 10.1016/j.advwatres.2015.09.021
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