Geomorphological evolution of Punta Rasa, Buenos Aires Province, Argentina

The spatial and temporal variability observed during the last 25 years at Punta Rasa sandspit is studied in this work. Five images Lansat TM (30 m spatial resolution) corresponding to the years 1987, 1994, 2001, 2007 and 2011 were selected in this study. Each one covers an area of 185 km x 172 km bu...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Dragani, Walter César, Codignotto, Jorge Ovaldo, Romero, Silvia Inés
Publicado: 2014
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15145158_v16_n2_p107_Dragani
http://hdl.handle.net/20.500.12110/paper_15145158_v16_n2_p107_Dragani
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_15145158_v16_n2_p107_Dragani
record_format dspace
spelling paper:paper_15145158_v16_n2_p107_Dragani2023-06-08T16:18:33Z Geomorphological evolution of Punta Rasa, Buenos Aires Province, Argentina Dragani, Walter César Codignotto, Jorge Ovaldo Romero, Silvia Inés The spatial and temporal variability observed during the last 25 years at Punta Rasa sandspit is studied in this work. Five images Lansat TM (30 m spatial resolution) corresponding to the years 1987, 1994, 2001, 2007 and 2011 were selected in this study. Each one covers an area of 185 km x 172 km but, for this analysis, a smaller area from latitude 36°19'40" to 36°17'08" S and from longitude 56°44'10" to 56°47'25" S was selected. A remarkable retrogression of the sandspit and a gradual widening of the sector located adjacently southward the sandspit was observed by comparison of the selected images. The hypothesis discussed in this work is that such variability would be associated to a change in the wind wave climate which arose a slight change in the long shore wave energy flux and in sand transport. Finally, it is highlighted that the mean sea level rise and the increasing in frequencies and intensities of storm surges in the Río de la Plata could play an important role in the observed erosion. Fil:Dragani, W.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Codignotto, J.O. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Romero, S.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2014 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15145158_v16_n2_p107_Dragani http://hdl.handle.net/20.500.12110/paper_15145158_v16_n2_p107_Dragani
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description The spatial and temporal variability observed during the last 25 years at Punta Rasa sandspit is studied in this work. Five images Lansat TM (30 m spatial resolution) corresponding to the years 1987, 1994, 2001, 2007 and 2011 were selected in this study. Each one covers an area of 185 km x 172 km but, for this analysis, a smaller area from latitude 36°19'40" to 36°17'08" S and from longitude 56°44'10" to 56°47'25" S was selected. A remarkable retrogression of the sandspit and a gradual widening of the sector located adjacently southward the sandspit was observed by comparison of the selected images. The hypothesis discussed in this work is that such variability would be associated to a change in the wind wave climate which arose a slight change in the long shore wave energy flux and in sand transport. Finally, it is highlighted that the mean sea level rise and the increasing in frequencies and intensities of storm surges in the Río de la Plata could play an important role in the observed erosion.
author Dragani, Walter César
Codignotto, Jorge Ovaldo
Romero, Silvia Inés
spellingShingle Dragani, Walter César
Codignotto, Jorge Ovaldo
Romero, Silvia Inés
Geomorphological evolution of Punta Rasa, Buenos Aires Province, Argentina
author_facet Dragani, Walter César
Codignotto, Jorge Ovaldo
Romero, Silvia Inés
author_sort Dragani, Walter César
title Geomorphological evolution of Punta Rasa, Buenos Aires Province, Argentina
title_short Geomorphological evolution of Punta Rasa, Buenos Aires Province, Argentina
title_full Geomorphological evolution of Punta Rasa, Buenos Aires Province, Argentina
title_fullStr Geomorphological evolution of Punta Rasa, Buenos Aires Province, Argentina
title_full_unstemmed Geomorphological evolution of Punta Rasa, Buenos Aires Province, Argentina
title_sort geomorphological evolution of punta rasa, buenos aires province, argentina
publishDate 2014
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15145158_v16_n2_p107_Dragani
http://hdl.handle.net/20.500.12110/paper_15145158_v16_n2_p107_Dragani
work_keys_str_mv AT draganiwaltercesar geomorphologicalevolutionofpuntarasabuenosairesprovinceargentina
AT codignottojorgeovaldo geomorphologicalevolutionofpuntarasabuenosairesprovinceargentina
AT romerosilviaines geomorphologicalevolutionofpuntarasabuenosairesprovinceargentina
_version_ 1768542956017418240

Ejemplares similares