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Circulation of the Coastal Waters Off Boa Viagem, Piedade and Candeias Beaches Pernambuco, Brazil
M. Rollnic and C. Medeiros
Journal of Coastal Research
Special Issue No. 39. Proceedings of the 8th International Coastal Symposium (ICS 2004), Vol. II (Winter 2006), pp. 648-650
Published by: Coastal Education & Research Foundation, Inc.
Stable URL: http://www.jstor.org/stable/25741656
Page Count: 3
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The coast of Pernambuco presents areas under severe environmental pressure. Land at Boa Viagem, Piedade and Candeias Beaches, has a high price and is disputed for the construction of houses and apartment complexes, and for the installation of commercial and industrial facilities as well as for leisure and touristic activities. Those beaches have suffered anthropic impacts and are under strong erosional process, requiring emergencial interventions to detain sea advances. Information on the coastal hydrodynamics at the area are still scarce and restricted to the surffing zone and motivated the present work. Our goal was to characterize the coastal circulation at Boa Viagem, Piedade and Candeias and its tidal and seasonal variability. The study area comprehended a 11 km section of the coast of Recife-PE, from the beach line to the 10m isobath. Currents speed and direction were measured near the surface, mid-depth and near the bottom using current meter Sensordata SD30, during raining (July, 2000) and dry (January, 2001) seasons through a spring tidal cycle. The area hydrodynamics is governed by local winds and tidal forcing and is modified by coastal morphology and presence of reef lines. Seasonal variation in precipitation affects directly coastal circulation, mainly close to the mouth of the Jaboatão river at Candeias beach.
Journal of Coastal Research © 2006 Coastal Education & Research Foundation, Inc.