Field and morphological analysis for validating landslide updates in the Italian Landslide Inventory (IFFI): two examples from the Campania Region (southern Italy)

Davide Romano¹, Gianluigi Di Paola¹, Carla Iadanza¹, Saverio Romeo¹, Rebecca Lena Zastrow¹ & Alessandro Trigila^1
1Italian Institute for Environmental Protection and Research (ISPRA), Via V. Brancati 48, 00144 Rome, Italy.
Corresponding author e-mail: gianluigi.dipaola@isprambiente.it

With the aim of verifying the validity and accuracy of the updated dataset of the Italian Landslide Inventory (IFFI) for the Campania Region, we conducted field and morphological analyses at the Roccadaspide and Corleto Monforte sites, where several discrepancies between the preexisting and revised records were found. The approach adopted for this purpose involves the interpretation of satellite images, the analysis of ground-motion data, and geomorphological fieldwork at the analysed sites. Results indicate that for the Roccadaspide site the revised dataset provides an improved understanding in terms of number of landslides and kinematics. Whereas, for the Corleto Monforte site, ancient landslide bodies, superficial instabilities, and damaged roads were identified; in this case, the revised dataset failed to offer an enhanced overview as it did not report landslides for this area. These outcomes strengthen the notion that multidisciplinary quality control procedures are highly recommended to maintain elevated benchmarks for landslide inventories, particularly when adding or updating data.

landslide inventories, IdroGEO platform, IFFI Inventory, dataset updating, landslide reports.