English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

. Landslides and floods, particularly flash floods, occurred recently in manyMediterranean catchments as a consequence of heavy rainfall events, causingdamage and sometimes casualties. The high hazard is often associated withhigh vulnerability deriving from intense urbanization, in particular alongthe coastline where streams are habitually culverted. The necessary riskmitigation strategies should be applied at the catchment scale with a holisticapproach, avoiding spot interventions. In the present work, a high-risk area, hit in the past by several floods andconcurrent superficial landslides due to extremely localized and intenserain events, has been studied. A total of 21 small catchments have been identified:only some of them have been hit by extremely damaging past events, but alllie in the intense-rain high-hazard area and are strongly urbanized in thelower coastal zone. The question is what would happen if an intense rainevent should strike one of the not previously hit catchments; some situationscould be worse or not, so attention has been focused on the comparisonamong catchments. The aim of the research has been identifying a priorityscale among catchments, pointing out the more critical ones and giving aquantitative comparison tool for decision makers to support strongscheduling of long-time planning interventions at the catchment scale. The pastevents' effects and the geomorphic process analysis together with the fieldsurvey allowed us to select three sets of parameters: one describing themorphometric–morphological features related to flood and landslide hazard,another describing the degree of urbanization and of anthropogenicmodifications at the catchment scale and the last related to the elements thatare exposed to risk. The realized geodatabase allowed us to apply the spatialmulticriteria analysis technique (S-MCA) to the descriptive parameters andto obtain a priority scale among the analyzed catchments. The scale can beused to plan risk mitigation interventions starting from the more criticalcatchments, then focusing economic resources primarily on them and obtainingan effective prevention strategy. The methodology could be useful even tocheck how the priority scale is modified during the progress of themitigation work realization. In addition, this approach could be applied in a similar context, even amongsub-catchments, after identifying a suitable set of descriptive parametersdepending on the active geomorphological processes and the kind ofanthropogenic modification. The prioritization would allow to investeconomic resources in risk mitigation interventions priory in the morecritical catchments.

A spatial multicriteria prioritizing approach for geo-hydrological risk mitigation planning in small and densely urbanized Mediterranean basins