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Monitoring morphological changes along the coast of Huelva (SW Spain) using soft-copy photogrammetry and GIS |
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| Authors: | J Ojeda Zújar L Borgniet A M Pérez Romero J F Loder |
| Institution: | 1. Departamento de Geografía física y AGR; Facultad de Geografía e Historia, Universidad de Sevilla, C/Ma de Padílla s/n, 41004, Sevilla, Spain 2. Cemagref, Group d'Aíx en Provence, 3275 Route Cézanne-Le Tholonet, BP 31 Le Tholonet, 13612, Aix-en-Provence, France 3. Departamento de Ingenieria Gráfica, Universidad de Sevilla, Centro de Ense?anzas Integradas (Antigua Universidad Laboral), 41013, Sevilla, Spain 4. Department of Geography and Environment, University of Aberdeen, Elphinstone Road, Old Aberdeen, AB24 3UF, Aberdeen, Scotland, UK |
| Abstract: | This contribution deals with the use of different sources of data (field surveys with total station and GPS, air photographs and topographic maps) as well as their integrated digital treatment in a GIS context to quantify the morphological changes in a ridge of coastal dunes in the southwest of Spain. The results show very high and increm enting rates of foredune retreat significant losses of foredune surface and a clear negative sedimentary balance (lowering and inland migration) in its recent evolution (1979–1996). Two processes can explain this evolution: (1) marine erosion and (2) the reactivation of aeolian deflation. The combined use of GPS (code/phase) and soft-copy photogrammetry seem to provide the best for monitoring future changes. |
| Keywords: | Air photograph Andalusia Dune ridge Morphodynamics |
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