Fractal analysis of tidal channels in the Bahía Blanca Estuary (Argentina) |
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| Authors: | Guillermo R Angeles Gerardo M E Perillo M Cintia Piccolo Jorge O Pierini |
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| Institution: | a Departamento de Geografía, Universidad Nacional del Sur, 12 de Octubre y San Juan, 8000, Bahía Blanca, Argentina;b CONICET-Instituto Argentino de Oceanografía (IADO), CC 840, 8000, Bahía Blanca, Argentina;c Departamento de Geología, Universidad Nacional del Sur, San Juan 670, 8000, Bahía Blanca, Argentina;d Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, Argentina |
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| Abstract: | The fractal dimension (D) was estimated for nine tidal channels depicted in thematic mapper (TM) Landsat-5 imagery to derive information about the degree of geomorphological control on a tidal channel network characteristic of the Bahía Blanca Estuary (Argentina). Two methods, box counting and contiguity, were used to estimate fractal dimensions for each tidal channel. All channels produced D values close to 1, meaning that they are self-affine fractal features. However, these fractal dimensions do not represent the meandering pattern complexity characteristic of the tidal channels analysed. Although both methods allowed for estimation of D, the contiguity method showed that three of the channels actually are not fractal but have sinusoidal characteristics, a condition that was not detected by the former method. |
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| Keywords: | Fractal dimensions Tidal channels Meandering pattern Bahí a Blanca Estuary |
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