Item type |
紀要論文 / Departmental Bulletin Paper(1) |
公開日 |
2009-03-30 |
タイトル |
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タイトル |
月降水量に適した情報の与え方と2変数最大エントロピー分布 |
タイトル |
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タイトル |
Methods for Obtaining Suitable Information for Monthly Precipitation and 2-Variable Maximum Entropy Distributions |
言語 |
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言語 |
jpn |
資源タイプ |
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資源 |
http://purl.org/coar/resource_type/c_6501 |
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タイプ |
departmental bulletin paper |
著者 |
寒川, 典昭
荒木, 正夫
清水, 克彦
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信州大学研究者総覧へのリンク |
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氏名 |
寒川, 典昭 |
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URL |
http://soar-rd.shinshu-u.ac.jp/profile/ja.WVLaZVkh.html |
出版者 |
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出版者 |
信州大学工学部 |
引用 |
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内容記述 |
信州大学工学部紀要 69: 25-40 (1991) |
書誌情報 |
信州大学工学部紀要
巻 69,
p. 25-40,
発行日 1991-09-30
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抄録 |
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内容記述 |
Methods for obtaining optimum information for a 2-variable maximum entropy distribution (2MED) were examined to estimate the hydrologic variable for the design of a water-supply system between two basins. Information consisting of statistical moments, and combined information of statistical moments and the expectations of an exponential function were tested with a set of rainfall data in Nagano, Nagoya and Tokyo. The goodness-of-fit (Log-likelihood,Akaike's information criterion and histogram) and stability of the return period were used as evaluation criteria in selecting suitable information. Though the 2M(x², exp(-4x / Mx), y², exp(-4y / My), xy) distribution for combined information ranked first in terms of goodness-of-fit, it did not provide good stability of the return period because it exhibits a sensitive reaction with regards to removed data. The 2M(x, x², y, y², xy) distribution for statistical moments only showed excellent results for both evaluation criteria. Therefore, it was judged from these results that the 2M(x, x², y, y², xy) distribution was the optimum distribution for the data set used in this investigation. |
資源タイプ(コンテンツの種類) |
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内容記述 |
Article |
ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0037-3818 |
書誌レコードID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AN00121228 |
出版タイプ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |