Articles | Volume 16, issue 2
https://doi.org/10.5194/nhess-16-509-2016
https://doi.org/10.5194/nhess-16-509-2016
Research article
 | 
22 Feb 2016
Research article |  | 22 Feb 2016

Atmospheric circulation patterns, cloud-to-ground lightning, and locally intense convective rainfall associated with debris flow initiation in the Dolomite Alps of northeastern Italy

S. Jeffrey Underwood, Michael D. Schultz, Metteo Berti, Carlo Gregoretti, Alessandro Simoni, Thomas L. Mote, and Anthony M. Saylor

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Short summary
This study examines 12 debris flow events occurring in northeast Italy. The study is one of the first to incorporate synoptic-scale atmospheric pattern analysis and meso-scale cloud-to-ground lighting flashes (CGFs) to analyze locally intense convective rainfall (LICR) that initiates debris flows in the Dolomite Alps. Three synoptic classifications were identified. CGFs are shown to be very good indicators of LICR and debris flows, confirmed via time-series analysis and correlation analysis.
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