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Simulation of the effects of the alteration of the river basin land use on river water temperature using the multi-layer mesh-typed runoff model.

https://hiroshima.repo.nii.ac.jp/records/2006786
https://hiroshima.repo.nii.ac.jp/records/2006786
d2a24ba7-a145-4939-a3cb-2ddb94c1439f
名前 / ファイル ライセンス アクション
EcolModel_215_159.pdf EcolModel_215_159.pdf (7.2 MB)
Item type デフォルトアイテムタイプ_(フル)(1)
公開日 2023-03-18
タイトル
タイトル Simulation of the effects of the alteration of the river basin land use on river water temperature using the multi-layer mesh-typed runoff model.
言語 en
作成者 Ozaki, Noriatsu

× Ozaki, Noriatsu

en Ozaki, Noriatsu

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Fukushima, Takehiko

× Fukushima, Takehiko

en Fukushima, Takehiko

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Kojiri, Toshiharu

× Kojiri, Toshiharu

en Kojiri, Toshiharu

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アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利情報
権利情報 Copyright (c) 2008 Elsevier B.V.
主題
主題Scheme Other
主題 River water temperature
主題
主題Scheme Other
主題 Multi-layer mesh-typed runoff model
主題
主題Scheme Other
主題 Heat transfer
主題
主題Scheme Other
主題 River bas
主題
主題Scheme NDC
主題 510
内容記述
内容記述 A model displaying river water temperatures was established, and applied to a small river basin. Based on the results, the effects of the alteration of the river basin on the budget and river water temperature were discussed. The model was a multi-layer mesh-typed runoff model, and the behavior of water and heat transference was depicted. Also, in order to verify the model, the daily changes of streamflow and river water temperature were measured and compared with the model results. From the calculation, the flow rate and river water temperature profile agreed well with the measured ones along the streamline. Using the model, the effects of deforestation and air temperature rise on river water temperature were discussed. With deforestation, the temperature in summer was calculated to rise and fall in winter. This was explained by the change of flow pass of surface and subsurface. The air temperature was thereafter changed in the model. From the simulation under the air temperature rises, the daily air temperature was evenly changed through a year, and the ratio of the change of the river water temperature to the air was less than unity (i. e., >1 °Criver water/°Cair). By close investigation of the model calculation, the most influential factor was determined to be subsurface temperature. The rise of surface temperature was also less than unity, due to the enhancement of heat loss with the augmentation of evaporation at the surface, and because the subsurface temperature is calculated on the surface temperature as boundary condition, rise of subsurface temperature was also less than unity. Overall, the mechanism of the alteration of river water temperature was described as follows: with the change of river basin land use or meteorological conditions, the pass of subsurface flow is changed, and the streamflow and river water temperature are also changed.
言語 en
出版者
出版者 Elsevier Science BV
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
出版タイプ
出版タイプ AO
出版タイプResource http://purl.org/coar/version/c_b1a7d7d4d402bcce
関連情報
識別子タイプ DOI
関連識別子 10.1016/j.ecolmodel.2008.02.030
関連情報
識別子タイプ DOI
関連識別子 http://dx.doi.org/10.1016/j.ecolmodel.2008.02.030
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0304-3800
収録物識別子
収録物識別子タイプ NCID
収録物識別子 AA00172373
開始ページ
開始ページ 159
書誌情報 Ecological Modelling
Ecological Modelling

巻 215, 号 1-3, p. 159-169, 発行日 2008-07-10
旧ID 25945
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