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  1. B200 工学部/工学研究科
  2. B200b 紀要
  3. Memoirs of the Faculty of Engineering, Nagoya University
  4. 42(1)

Study on the spatial and temporal behaviors of unconfined groundwater head-field in heterogeneous region

https://doi.org/10.18999/memfenu.42.1.1
https://doi.org/10.18999/memfenu.42.1.1
339d91ce-06c6-4359-aa3d-88fec6e02d6f
名前 / ファイル ライセンス アクション
42-1-01.pdf 42-1-01.pdf (3.7 MB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2020-10-29
タイトル
タイトル Study on the spatial and temporal behaviors of unconfined groundwater head-field in heterogeneous region
言語 en
著者 Takagi, Fusetsu

× Takagi, Fusetsu

WEKO 101938

en Takagi, Fusetsu

Search repository
Harada, Morihiro

× Harada, Morihiro

WEKO 101939

en Harada, Morihiro

Search repository
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
抄録
内容記述 The spatial distribution of hydraulic head, namely "head-field", is estimated from a limited set of observed data, including the uncertainty which caused by both the complexity of groundwater behavior due to the heterogeneity of flow region and the insufficiency of measurement equipments. It is necessary for the precise analysis of the regional groundwater to evaluate quantitatively the uncertainty of head-field. The present study is directed toward tackling this problem from stochastic standpoint. The behavior of unconfined head-field in the heterogeneous flow region due to a rainfall is treated as the physical process in the random field, and the statistical structure of head-field is analyzed based on the physical principles of the subsurface flow. Firstly, the spatial randomness of water-table response to a rainfall is formulated as the head variance, taking the infiltration process in unsaturated zone into consideration. Secondly, the unsteady head variogram after the rainfall is theoretically derived by the perturbation expansion, and the spatial head distributions during the recession process are estimated from a limited set of point data through the geostatistical approach. And lastly, a new criterion for the parameter identification of the regional groundwater model is also proposed, which takes full advantage of the stochastic properties on the uncertainty of actual head behavior.
言語 en
内容記述タイプ Abstract
出版者
言語 en
出版者 Faculty of Engineering, Nagoya University
言語
言語 eng
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ departmental bulletin paper
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
ID登録
ID登録 10.18999/memfenu.42.1.1
ID登録タイプ JaLC
ISSN(print)
収録物識別子タイプ PISSN
収録物識別子 0027-7657
書誌情報 en : Memoirs of the Faculty of Engineering, Nagoya University

巻 42, 号 1, p. 1-47, 発行日 1990-10-31
著者版フラグ
値 publisher
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