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Información del Artículo

Título:
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Estudio de la geomorfología y distribución de sedimentos en la playa Cibuco, Vega Baja, Puerto Rico y su posible relación con los procesos hidrológicos del Río Cibuco (recurso electrónico) / José Antonio Nevárez Rivera, Stephanie Cuebas Vázquez, Maritza Barreto Orta
Autores:
En: Perspectivas en asuntos ambientales (ISSN 2167-6828) vol. 1; 2012: p 87-99. bibl. graf.
Temas:
URL:
http://
Revista: Perspectivas en asuntos ambientales, vol. 1; 2012
Resumen: An assessment of beach geomorphology and sediment grain size were done at Cibuco Beach, Vega Baja Puerto Rico, from March 2011 to May 2011. Subaerial beach (width and elevation) and sediment grain size changes were evaluated and related with physical variables as river discharge and wave height to identify the possible role of these variables causing geomorphic changes in the site. Three stations were selected base on their unique physical variables to collect beach profile measurements and beach sediment on a monthly basis. Beach profile was measured in selected permanent beach station. Sediment grain size was determined using sieving analysis. River discharge and wave regime data were described using publishing data from US Geological Survey (USGS) and Caribbean Coastal Ocean Observing System (CariCoos). Evaluation of maps and remote sensing data were used to describe additional variables related with human activities and other physical variables. Results showed major beach geomorphic changes were found in less protected coastal sites due to the lack of natural barriers. Coarser sediments are mainly found in Station 1 and Station 2 with grain size ranges from 1 mm to 0.5 mm. Beach profile station 3 presented a more dynamic grain size distribution through time, which varied from gravel to very fi ne sand (2 mm to 0.425 mm). River discharge and wave regime data showed, a possible relation between high discharges peaks and low energy wave regime with deposition of finer sediments in Station 3. Finer sediment grain size distribution may be related to the occurrence of high discharge events at Cibuco River.
Palabras Claves: geomorfología costera, sedimentos, geografía marina, oceanograía planificación costera.
Areas Temáticas:

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