Hydro-morphologic setting of the Samborombón Bay (Argentina) at the end of the 21st century

We report on the hydrologic and morphologic setting of the Samborombón Bay, Argentina, which is expected at the end of the 21st century as a consequence of possible scenarios of relative sea level rise (RSLR). The geomorphological analysis of the Samborombón coastland points out only minor changes o...

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Autores principales: Tosi, L., Kruse, Eduardo Emilio, Braga, F., Carol, Eleonora Silvina, Carretero, Silvina Claudia, Pousa, Jorge Lorenzo, Rizzetto, F., Teatini, P.
Formato: Articulo
Lenguaje:Español
Publicado: 2013
Materias:
Ciencias Naturales
Hidrología
Argentina
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/67362
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-67362
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Ciencias Naturales
Hidrología
Argentina
spellingShingle Ciencias Naturales
Hidrología
Argentina
Tosi, L.
Kruse, Eduardo Emilio
Braga, F.
Carol, Eleonora Silvina
Carretero, Silvina Claudia
Pousa, Jorge Lorenzo
Rizzetto, F.
Teatini, P.
Hydro-morphologic setting of the Samborombón Bay (Argentina) at the end of the 21st century
topic_facet Ciencias Naturales
Hidrología
Argentina
description We report on the hydrologic and morphologic setting of the Samborombón Bay, Argentina, which is expected at the end of the 21st century as a consequence of possible scenarios of relative sea level rise (RSLR). The geomorphological analysis of the Samborombón coastland points out only minor changes occurred over the last 40 yr. The modifications are mainly related to the construction of canals to enhance the floodplain drainage. A digital elevation model (DEM) obtained by the Shuttle Radar Topography Mission (SRTM) data archive, ad hoc calibrated/validated for the study area, highlights that about 3000 km2 of coastal plain present a morphological setting at high risk of sea flooding. The analysis of sea level and storm surge events recorded from 1905 to 2010 in Buenos Aires provides the RSLR rate and the return period of extreme floods. In addition, vertical land movements (VLM) measured by the permanent GPS stations of Buenos Aires and La Plata allow for the quantification of the eustatic component of the RSLR and estimating a plausible RSLR rate in the Samborombón Bay. Taking into account possible RSLR scenarios at the end of 2100 as resulting from the statistical analysis of (i) tide gauge and GPS time series and (ii) Intergovernmental Panel on Climate Change (IPCC) predictions, the potential effect of the increased sea level on the Samborombón coastland is simulated. The results show that the combined rise of sea levels, surficial waters and groundwater will lead to a new morpho-hydrologic setting of the coastal area, especially in the low-lying southern sector. Here, a coastline retreat up to 40 km is expected, with temporary submersion up to 4000 km2 during storm surges.
format Articulo
Articulo
author Tosi, L.
Kruse, Eduardo Emilio
Braga, F.
Carol, Eleonora Silvina
Carretero, Silvina Claudia
Pousa, Jorge Lorenzo
Rizzetto, F.
Teatini, P.
author_facet Tosi, L.
Kruse, Eduardo Emilio
Braga, F.
Carol, Eleonora Silvina
Carretero, Silvina Claudia
Pousa, Jorge Lorenzo
Rizzetto, F.
Teatini, P.
author_sort Tosi, L.
title Hydro-morphologic setting of the Samborombón Bay (Argentina) at the end of the 21st century
title_short Hydro-morphologic setting of the Samborombón Bay (Argentina) at the end of the 21st century
title_full Hydro-morphologic setting of the Samborombón Bay (Argentina) at the end of the 21st century
title_fullStr Hydro-morphologic setting of the Samborombón Bay (Argentina) at the end of the 21st century
title_full_unstemmed Hydro-morphologic setting of the Samborombón Bay (Argentina) at the end of the 21st century
title_sort hydro-morphologic setting of the samborombón bay (argentina) at the end of the 21st century
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/67362
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