Geomorphology of Po River

Name of project:
Geomorphological characterization of the Po riverbed and of the adjacent areas subject to flooding, from the confluence of the Dora Riparia River (Turin) to Pontelagoscuro (Ferrara)
Country: Area of study:
Italy Piemonte, Lombardia, Emilia Romagna
Customer:
Po River Basin Authority (Parma), SGI – Studio Galli Ingegneria SpA (Padova)
Project objectives:
To analyse the changes occurred in the Po riverbed, with particular concern to the modification of bars and banks, to the consequences of 1994 and 2000 floods and to the interactions between relic hydrography and main embankments
Composition of the working group:
GEOMAP
Personnel involved:
3 geologists, 1 GIS expert
Number man/months:
Project steps:
The time span considered in this detailed geomorphologic analysis concerning the riverbed and the banks is comprised between 1979 and 2002, since the morphologic changes occurred from 1954 and 1979 were analysed in a previous project, carried out with a similar methodology for a different customer in 1982.
The identification of the morphologic features, both of natural and human origin, was made on aerial photographs taken in 1995, 2000 and 2002. This data allowed the observation of the effects of November 1994 and October 2000 floods and the exceptionally low water period of 2002.
The reconstruction of the evolution (using both qualitative and quantitative data) was carried out by comparing the recent situation with the one represented in pre-existing thematic and topographic maps at the 1:10,000 scale of 1979 and 1988.
Morphologic features present in the flood areas, often spread over large areas, were recognized from the above-mentioned aerial photos, from AIMA orthophotos and from topographic maps (IGMI and CTR) and represented at the 1:25,000 scale.
All the elements surveyed from the aerial photos and obtained by the comparison of the historical documents were georeferenced in the UTM ED50 32 N system and archived in a geographic database, specifically designed for this project. A selection of the data present in this database was used to produce a digital Cartographic Atlas at two different scales: 34 sheets at 1:10,000 scale and 39 sheets at 1:25,000 scale
Start (year/month): End (year/month): Value of the project:
09/2003 09/2006 € 62.000,00