| Автор | Bishop, Garner C. |
| Автор | Chellis, Suzanne E. |
| Дата выпуска | 1989 |
| dc.description | Measured under‐ice acoustic profile data and several large‐scale geometric parameters of ice keels are used to construct and partition an ensemble of large‐scale relief features into two subsets: a subset of keel‐like features (e.g., ice keels) and a subset of nonkeel‐like features. The draft data of each feature are regarded as a realization of a nonstationary random process while the draft increment data are regarded as a realization of a stationary zero mean random process. A maximum likelihood estimator technique (MLE) and a technique based on the variance function are used to calculate fractal dimensions for keel‐like and nonkeel‐like features. It is shown that for the same feature, the MLE technique and the variance function based technique yield similar values for the fractal dimension (D) and that for keel‐like features 1.2 < D < 1.7 while for nonkeel‐like features 1.2 < D < 1.6. The use of D in feature classification is also indicated. |
| Формат | application.pdf |
| Копирайт | Copyright 1989 by the American Geophysical Union. |
| Тема | Oceanography: General |
| Тема | Oceanography: General: Ocean acoustics |
| Тема | Oceanography: General: Arctic and Antarctic oceanography |
| Тема | Oceanography: General: Numerical modeling |
| Тема | Oceanography: General: General or miscellaneous |
| Тема | Oceanography: Physical |
| Тема | Oceanography: Physical: Ice mechanics and air‐sea‐ice exchange processes |
| Тема | Geographic Location |
| Тема | Information Related to Geographic Region: Arctic region |
| Название | Fractal dimension: A descriptor of ice keel surface roughness |
| Тип | article |
| DOI | 10.1029/GL016i009p01007 |
| Electronic ISSN | 1944-8007 |
| Print ISSN | 0094-8276 |
| Журнал | Geophysical Research Letters |
| Том | 16 |
| Первая страница | 1007 |
| Последняя страница | 1010 |
| Аффилиация | Bishop, Garner C.; Naval Underwater Systems Center |
| Аффилиация | Chellis, Suzanne E.; Naval Underwater Systems Center |
| Выпуск | 9 |
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| Библиографическая ссылка | Lundahl, T.W. L.OhleyS. M.KayR.Siffert, Fractional Brownian motion: A maximum likelihood estimator and its application to image texture, IEEE Trans, on Medical Imaging., MI‐5, 152–161, 1986 |
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| Библиографическая ссылка | Weeks, W. F.S. F.AckleyThe growth, structure and properties of sea ice, CRREL Monograph 82‐1., Cold Regions Research & Engineering Lab., Hanover, NH, 1982 |
