Regione Piemonte - Alluvial Cones - Geoportale Arpa Regione Piemonte

Morphological cartography "Alluvial cones" in Piedmont in 1: 10.000 scale, accompanied by the information contained in the "Archive cones" (general characteristics of the al'luvial, position with respect to the main valley, evolution of the fan in the longitudinal direction, relations with other equipment, information available on the torrential phenomena that occurred in historical times) and from the "Basin characterization" of feeding from the morphometric and lithological point of view. The scope of analysis covers the Alpine reliefs from the Ossola Valley (VCO) to the upper Valle Tanaro as well as the Apennine-Piedmont hills (up to Valle Scrivia - AL). The survey tool consists mainly in the photo-interpretation of the Flight Regione Piemonte Alluvione 2000.

The stereoscopic analysis of pairs of aerial photographs (Compagnia Riprese Aeree, Parma, Flight post flood October 2000, lot 2000-2001) was used for the realization of the morphological cartography of conoids and feeding basins and of the general information archive on the equipment. ; Luigi Rossi, Brescia, Flight post-flood 2000, lot South 2000) and the analysis of orthorectified images (Ortoimmagini TerraItaly IT2000 update 2007); locally, other aerial shots were also used, taken between 1954 and 2008, and controls were carried out via surveys on the ground. Historical information on events and previous damage are extracted from the Arpa Database which contains information from the fifteenth century.