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Self-affinity of landform and its measurement
http://hdl.handle.net/10748/3604
http://hdl.handle.net/10748/3604fbaf47c5-a225-4fed-97c4-b84b5a5534ff
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
20005-25-009.pdf (741.5 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||
|---|---|---|---|---|---|---|---|---|
| 公開日 | 2010-11-30 | |||||||
| タイトル | ||||||||
| タイトル | Self-affinity of landform and its measurement | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | fractal geometry | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | self-affinity | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | scaling parameter | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | random surfaces | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | landform | |||||||
| 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 | departmental bulletin paper | |||||||
| 著者 |
Ouchi, Shunji
× Ouchi, Shunji
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| 著者(ヨミ) |
オオウチ, シュンジ
× オオウチ, シュンジ |
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| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | Fractal geometry is expected to provide a new quantitative way to express a certain property of landform. Transect profiles of landform are considered to be self-affine because vertical and horizontal coordinates should be scaled differently, while contour lines are isotropic and self-similar. The method developed to analyze the self-affinity of curves in two-dimensional space can well express these fractal character-istics of both transect profiles and contour lines. This method is extended to analyze the three-dimensional land surfaces. The variance of elevation change Z^2, surface area S and bottom area A are measured in a number of scaling unit areas of various sizes to see whether Z^2 and A are scaled as Z^2～S^＜VZ＞ and A～S^＜VA＞. The three dimensional land surface is appeared to be self-affine with VA≅1 and 0＜VZ＜1, and the value of VZ is equivalent to the value of scaling factor H of fractional Brownian motion traces. This method of measurement well reproduces the initially introduced H value of the computer-generated fractional Brownian surfaces, and it is confirmed to work also on the real topography | |||||||
| 書誌情報 |
Geographical Reports of Tokyo Metropolitan University 号 25, p. 67-79, 発行日 1990 |
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| ISSN | ||||||||
| 収録物識別子タイプ | ISSN | |||||||
| 収録物識別子 | 03868710 | |||||||
| 書誌レコードID | ||||||||
| 収録物識別子タイプ | NCID | |||||||
| 収録物識別子 | AA00200173 | |||||||
| 著者版フラグ | ||||||||
| 出版タイプ | VoR | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
| 出版者 | ||||||||
| 出版者 | Department of Geography, Tokyo Metropolitan University | |||||||
