The Spatial Representativity of Temperature Data of AMeDAS as Revealed by the Variogram
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- HADANO Kazuyoshi
- Laboratory of GIS, Department of Geography, Tokyo Metropolitan University.
Bibliographic Information
- Other Title
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- バリオグラムを用いたAMeDAS気温データの空間代表性に関する解析
- バリオグラム オ モチイタ AMeDAS キオン データ ノ クウカン ダイヒョウセイ ニ カンスル カイセキ
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Abstract
The spatial representativity of the annual mean temperature of AMeDAS is investigated using the variogram. In the variogram, the value called as "range" is regarded as the measure of the spatial representativity. It is found that the annual mean temperature have at least the spatial representativity of 50-100km. Also, the objective methods for estimating the spatial representativity are proposed; (1) the distance to adapt the variogram model can be determined by the Lepage test, and (2) "ranges" of a variogram with the nested structure can be detected by applying the nested variogram models. These methods are well functioned although the forms of the variograms are different one another. In addition, the following important findings are obtained; (1) "ranges" of variograms are not affected by the station densities, and (2) the nested structure appears when the study area is enlarged.
Journal
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- Theory and Applications of GIS
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Theory and Applications of GIS 12 (1), 35-46, 2004
Geographic Information Systems Association
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Keywords
Details 詳細情報について
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- CRID
- 1390001204475595008
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- NII Article ID
- 10013770508
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- NII Book ID
- AN10457305
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- ISSN
- 21855633
- 13405381
- http://id.crossref.org/issn/13405381
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- NDL BIB ID
- 7259837
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed
