Servizio Comunitario di Informazione in materia di Ricerca e Sviluppo - CORDIS

Progress in geomorphological evolution in relation to climate changes

Mapping of debris flows in the Municipality of Cortina d'Ampezzo, initiated during the previous EU Project Debris Flow Risk, has been completed at scale 1:10000, through aerial photo analyses and field surveys; morphometric measurements of debris flow catchments have been carried out.

A total number of 325 debris flows have been mapped. The geomorphological hazard map has been upgraded and now it includes 135 channelised and 190 hill-slope debris flows.

In the data base, each record is identified by a number and it finds its corresponding in the debris flows map.

For each debris flow the following parameters have been observed, measured and estimated:
- Type (channelised, hill-slope);
- Aspect;
- Rock-basin area, perimeter, length, width;
- Shape factor; maximum, minimum and mean rock-basin elevation;
- Relief ratio;
- Flow channel length;
- Lower flow-channel elevation;
- Mean channel slope;
- Mean initiation-area slope;
- Mean deposition-area slope;
-Concentration time (by Giandotti method).

This analysis has been extended to the whole Veneto Region where other 120 debris flows have been identified and classified in the same way.

The analyses of morphometric data aimed to identify possible relationships between the different parameters. The preliminary results are shown in the following figures as a total of the investigated area and also considering five different sectors in which the same area may be subdivided.

Reported by

University of Padova
Via Giotto, 1
35137 Padova
Italy
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