ARTIFICIAL DEVIATION OF A SMALL INLET (BEVANO, NORTHERN ITALY): PREDICTION OF FUTURE EVOLUTION AND PLANNING OF MANAGEMENT STRATEGIES USING OPEN-SOURCE COMMUNITY COASTAL MODELS
No. 33 (2012), Coastal Management, Environment, and Risk
No. 33 (2012)

ARTIFICIAL DEVIATION OF A SMALL INLET (BEVANO, NORTHERN ITALY): PREDICTION OF FUTURE EVOLUTION AND PLANNING OF MANAGEMENT STRATEGIES USING OPEN-SOURCE COMMUNITY COASTAL MODELS

Coastal Management, Environment, and Risk
https://doi.org/10.9753/icce.v33.management.57
Published 2012-12-14
Paolo Ciavola
University of Ferrara
Massimo Tondello
Hydrosoil
Sandro Carniel
CNR-ISMAR
Mauro Sclavo
CNR-ISMAR
ICCE 2012 Cover Image
PDF

Keywords

inlet relocation
soft engineering
ebb delta
numerical models

How to Cite

Ciavola, P., Tondello, M., Carniel, S., & Sclavo, M. (2012). ARTIFICIAL DEVIATION OF A SMALL INLET (BEVANO, NORTHERN ITALY): PREDICTION OF FUTURE EVOLUTION AND PLANNING OF MANAGEMENT STRATEGIES USING OPEN-SOURCE COMMUNITY COASTAL MODELS. Coastal Engineering Proceedings, 1(33), management.57. https://doi.org/10.9753/icce.v33.management.57
ACM ACS APA ABNT Chicago Harvard IEEE MLA Turabian Vancouver

Download Citation

Endnote/Zotero/Mendeley (RIS) BibTeX

Abstract

The Bevano river flows into the northern Adriatic Sea in a microtidal-low energy wave environment. The river mouth was diverted artificially in 2006 to contrast dune erosion and decrease inland river flooding. The intervention can be considered as a low impact one as the engineering works were constructed in timber and the possibility of the inlet naturally changing its course was contemplated. An ensemble of hydraulic/morphological scenarios was simulated using data from field surveys and a coupled numerical model. The aim of the modeling was to understand the morphological changes caused by extreme hydro-meteorological events and the relationships between the inlet and the adjacent beaches. Additionally, the probability of a second inlet opening either by overwashing or river breaching was another important topic considered for management purposes. The modeling found that, a second inlet can actually be opened under a 30 year flood occurring without any significant wave action. For other conditions, the current inlet will be the main source of water escape at sea. Finally, the modeling results confirmed the dominance of the ebb tide in creating a small ebb delta/swash bar, with many similarities with other inlets exposed to a larger tidal range. Currently the management strategy by competent authorities is a minimum maintenance option, with yearly repairs of the timber structures.
https://doi.org/10.9753/icce.v33.management.57
PDF

References

Armaroli, C., Ciavola, P., 2011. Dynamics of a nearshore bar system in the northern Adriatic: A videobased morphological classification. Geomorphology 126, 201-216.http://dx.doi.org/10.1016/j.geomorph.2010.11.004

Armaroli, C., Ciavola, P., Perini L., Lorito, S., Valentini, A., Masina M., 2012. Critical storm thresholds for significant morphological changes and damage along the Emilia-Romagna coastline, Italy. Geomorphology, 143-144, 34-51.http://dx.doi.org/10.1016/j.geomorph.2011.09.006

Balouin, Y., Howa, H., 2002. Sediment transport pattern at the Barra Nova inlet, south Portugal: a conceptual model. Geo-Marine Letters 21, 226-235.http://dx.doi.org/10.1007/s00367-001-0087-1

Balouin, Y., Ciavola, P., Michel, D., 2006. Support of subtidal tracer studies to quantify the complex morphodynamics of a river outlet: the Bevano, NE Italy. Journal of Coastal Research, SI 39, 602-607.

Bignami, F., Sciarra, R., Carniel, S., Santoleri, R., 2007. The variability of the Adriatic sea coastal turbid waters from SeaWiFS imagery. Journal of Geophysical Research - Ocean, 112, C03S10.

DOI: 10.1029/2006JC003518http://dx.doi.org/10.1029/2006JC003518

Boldrin, A., Carniel, S., Giani, M., Marini, M., Bernardi Aubry, F., Campanelli, A., Grilli, F., Russo, A., 2009. The effect of Bora wind on physical and bio-chemical properties of stratified waters in the Northern Adriatic. Journal of Geophysical Research - Ocean, 114, C08S92.

DOI:10.1029/2008JC004837http://dx.doi.org/10.1029/2008JC004837

Carniel, S., Sclavo, M., Tondello, M. and Ciavola, P., 2012. Modelli numerici integrati in aree costiere: un esempio di applicazione nel nord Adriatico. In press, Quaderni ARPA-EMR, ISSN-XX (in Italian and English).

Ciavola, P., Billi, P., Armaroli, C., Preciso, E., Salemi, E., Balouin, Y., 2005. Valutazione della morfodinamica di foce del Torrente Bevano (RA): il ruolo del trasporto solido di fondo. Geologia Tecnica ed Ambientale, 2005/1: 41-57. (in Italian).

Fontolan, G., Pillon, S., Delli Quadri, F., Bezzi, A., 2007. Sediment storage at tidal inlets in northern Adriatic lagoons: Ebb-tidal delta morphodynamics, conservation and sand use strategies. Estuarine, Coastal and Shelf Science 75, 261-277.http://dx.doi.org/10.1016/j.ecss.2007.02.029

Gardelli, M., Caleffi, S., Ciavola, P., 2007. Evoluzione morfodinamica della foce del torrente Bevano. Studi Costieri 13, 55-76. (in Italian).

Harley, M., Armaroli, C., Ciavola, P., 2011. Evaluation of XBeach predictions for a real-time warning system in Emilia-Romagna, Northern Italy. Journal of Coastal Research SI 64, 1861-1865.

Pacheco, A., Williams, J., Ferreira, Ó, Garel, E., Reynolds, S., 2011. Applicability of sediment transport models to evaluate medium term evolution of tidal inlet systems. Estuarine, Coastal and Shelf Science 95 (1), 119-134.http://dx.doi.org/10.1016/j.ecss.2011.08.027

Regione Emilia-Romagna, 2000. Relazione sullo stato dell'ambiente in Emilia Romagna 1999, Bologna, Italy, pp. 448. (in Italian)

Robin, N., F., Levoy, O., Montfort., 2007. Bar morphodynamic behaviour on the ebb delta of a macrotidal inlet (Normandy, France), Journal of Coastal Research, 23, 1370-1378.http://dx.doi.org/10.2112/06-0684.1

Sedrati, M., Ciavola, P., Armaroli, C., 2011. Morphodynamic evolution of a microtidal barrier, the role of overwash: Bevano, Northern Adriatic Sea. Journal of Coastal Research, SI 64, 696-700.

Vila-Concejo, A., Ferreira, Ó, Matias, A., Morris, B.D., Dias, J.A., 2004a. Lessons from inlet relocation: examples from Southern Portugal. Coastal Engineering, 51, 967-990.http://dx.doi.org/10.1016/j.coastaleng.2004.07.019

Vila-Concejo, A., Ferreira, Ó, Ciavola, P., Matias, A., Dias, J.A., 2004b. Tracer studies on the updrift margin of a complex inlet system. Marine Geology, 208, 43-72.http://dx.doi.org/10.1016/j.margeo.2004.04.020

Wang, P., Beck, T. M., 2012. Morphodynamics of an anthropogenically altered dual-inlet system: John's Pass and Blind Pass, west-central Florida, USA, Marine Geology, 291-294, 162-175.http://dx.doi.org/10.1016/j.margeo.2011.06.001

Warner, J.C., Sherwood, C.R., Signell, R.P., Harris, C., Arango, H., 2008. Development of a threedimensional, regional, coupled wave, current, and sediment-transport model. Computers and Geosciences, 34: 1284-1306http://dx.doi.org/10.1016/j.cageo.2008.02.012

Authors retain copyright and grant the Proceedings right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this Proceedings.