Morphology and short-term changes of the Caleta Valdés barrier spit, Argentina

Caleta Valdés is an area constituted by a set of Holocene and Pleistocene gravel beach ridges, which form part of a barrier spit system. Longshore drift has been predominantly north to south for the last 5700 years. Evolution of the area has been monitored during the last 28 years. In this period, t...

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Autor principal: Kokot, R.R
Otros Autores: Monti, A.A.J, Codignotto, J.O
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Lenguaje:Inglés
Publicado: Coastal Education Research Foundation Inc. 2005
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100 1 |a Kokot, R.R. 
245 1 0 |a Morphology and short-term changes of the Caleta Valdés barrier spit, Argentina 
260 |b Coastal Education Research Foundation Inc.  |c 2005 
270 1 0 |m Kokot, R.R.; CONICET - Departamento de Ciencias Geológicas, FCEyN (UBA), C. Universitaria Pab. II, (1428) Buenos Aires, Argentina; email: rkokot@gl.fcen.uba.ar 
506 |2 openaire  |e Política editorial 
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520 3 |a Caleta Valdés is an area constituted by a set of Holocene and Pleistocene gravel beach ridges, which form part of a barrier spit system. Longshore drift has been predominantly north to south for the last 5700 years. Evolution of the area has been monitored during the last 28 years. In this period, the northern spit has been growing southward, and its rate has increased from 25-meter per annum (1971-87), to 89-meter per annum (1987-96). During the 1996-9 time span, growth has increased up to 167-meter per annum. This growth rate implies an average movement of approximately 1400 metric tons of gravel a day during the last four years. The growth rate during the time span under study can be represented by a polynomial equation of the third order. Spit evolution can be predicted from this equation. It is thus possible to suggest that Caleta Valdés is likely to close by 2002 (±). Such a morphological change will cause drastic changes in hydrodynamics, and environmental conditions due to changes in both water salinity and temperature.  |l eng 
593 |a CONICET - Departamento de Ciencias Geológicas, FCEyN (UBA), C. Universitaria Pab. II, (1428) Buenos Aires, Argentina 
593 |a CONICET, CENPAT, Boulevard Brown s/n, (9120) Puerto Madryn Chubut, Argentina 
690 1 0 |a ARGENTINE COAST 
690 1 0 |a BARRIER SPIT 
690 1 0 |a HOLOCENE EVOLUTION 
690 1 0 |a LITTORAL DRIFT 
690 1 0 |a RAPID CHANGES 
690 1 0 |a BARRIER ISLAND 
690 1 0 |a BEACH RIDGE 
690 1 0 |a COASTAL EVOLUTION 
690 1 0 |a COASTAL MORPHOLOGY 
690 1 0 |a SPIT 
690 1 0 |a CALETA VALDES 
690 1 0 |a VALDES PENINSULA 
690 1 0 |a WESTERN HEMISPHERE 
690 1 0 |a WORLD 
690 1 0 |a CALETA 
651 4 |a ARGENTINA 
651 4 |a CHUBUT 
651 4 |a SOUTH AMERICA 
700 1 |a Monti, A.A.J. 
700 1 |a Codignotto, J.O. 
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