Hydrogeological effects of dredging navigable canals through lagoon shallows. A case study in Venice

For the first time a comprehensive investigation has been carried out to quantify the possible effects of dredging a navigable canal on the hydrogeological system underlying a coastal lagoon. The study is focused on the Venice Lagoon, Italy, where the port authority is planning to open a new 10m dee...

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Detalles Bibliográficos
Autores principales: Teatini, Pietro, Isotton, Giovanni, Nardean, Stefano, Ferronato, Massimiliano, Mazzia, Annamaria, Da Lio, Cristina, Zaggia, Luca, Bellafiore, Debora, Zecchin, Massimo, Baradello, Luca, Cellone, Francisco Aldo, Corami, Fabiana, Gambaro, Andrea, Libralato, Giovanni, Morabito, Elisa, Volpi Ghirardini, Annamaria, Broglia, Riccardo, Zaghi, Stefano, Tosi, Luigi
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Ciencias Naturales
hydrogeological system
dredging navigable canals
Venice
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/87201
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-87201
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
hydrogeological system
dredging navigable canals
Venice
spellingShingle Ciencias Naturales
hydrogeological system
dredging navigable canals
Venice
Teatini, Pietro
Isotton, Giovanni
Nardean, Stefano
Ferronato, Massimiliano
Mazzia, Annamaria
Da Lio, Cristina
Zaggia, Luca
Bellafiore, Debora
Zecchin, Massimo
Baradello, Luca
Cellone, Francisco Aldo
Corami, Fabiana
Gambaro, Andrea
Libralato, Giovanni
Morabito, Elisa
Volpi Ghirardini, Annamaria
Broglia, Riccardo
Zaghi, Stefano
Tosi, Luigi
Hydrogeological effects of dredging navigable canals through lagoon shallows. A case study in Venice
topic_facet Ciencias Naturales
hydrogeological system
dredging navigable canals
Venice
description For the first time a comprehensive investigation has been carried out to quantify the possible effects of dredging a navigable canal on the hydrogeological system underlying a coastal lagoon. The study is focused on the Venice Lagoon, Italy, where the port authority is planning to open a new 10m deep and 3km long canal to connect the city passenger terminal to the central lagoon inlet, thus avoiding the passage of large cruise ships through the historic center of Venice. A modeling study has been developed to evaluate the short (minutes), medium (months), and long (decades) term processes of water and pollutant exchange between the shallow aquifer system and the lagoon, possibly enhanced by the canal excavation, and ship wakes. An in-depth characterization of the lagoon subsurface along the channel has supported the numerical modeling. Piezometer and sea level records, geophysical acquisitions, laboratory analyses of groundwater and sediment samples (chemical analyses and ecotoxicity testing), and the outcome of 3-D hydrodynamic and computational fluid dynamic (CFD) models have been used to set up and calibrate the subsurface multi-model approach. The numerical outcomes allow us to quantify the groundwater volume and estimate the mass of anthropogenic contaminants (As, Cd, Cu, Cr, Hg, Pb, Se) likely leaked from the nearby industrial area over the past decades, and released into the lagoon from the canal bed by the action of depression waves generated by ships. Moreover, the model outcomes help to understand the effect of the hydrogeological layering on the propagation of the tidal fluctuation and salt concentration into the shallow brackish aquifers underlying the lagoon bottom.
format Articulo
Articulo
author Teatini, Pietro
Isotton, Giovanni
Nardean, Stefano
Ferronato, Massimiliano
Mazzia, Annamaria
Da Lio, Cristina
Zaggia, Luca
Bellafiore, Debora
Zecchin, Massimo
Baradello, Luca
Cellone, Francisco Aldo
Corami, Fabiana
Gambaro, Andrea
Libralato, Giovanni
Morabito, Elisa
Volpi Ghirardini, Annamaria
Broglia, Riccardo
Zaghi, Stefano
Tosi, Luigi
author_facet Teatini, Pietro
Isotton, Giovanni
Nardean, Stefano
Ferronato, Massimiliano
Mazzia, Annamaria
Da Lio, Cristina
Zaggia, Luca
Bellafiore, Debora
Zecchin, Massimo
Baradello, Luca
Cellone, Francisco Aldo
Corami, Fabiana
Gambaro, Andrea
Libralato, Giovanni
Morabito, Elisa
Volpi Ghirardini, Annamaria
Broglia, Riccardo
Zaghi, Stefano
Tosi, Luigi
author_sort Teatini, Pietro
title Hydrogeological effects of dredging navigable canals through lagoon shallows. A case study in Venice
title_short Hydrogeological effects of dredging navigable canals through lagoon shallows. A case study in Venice
title_full Hydrogeological effects of dredging navigable canals through lagoon shallows. A case study in Venice
title_fullStr Hydrogeological effects of dredging navigable canals through lagoon shallows. A case study in Venice
title_full_unstemmed Hydrogeological effects of dredging navigable canals through lagoon shallows. A case study in Venice
title_sort hydrogeological effects of dredging navigable canals through lagoon shallows. a case study in venice
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/87201
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