Articles | Volume 15, issue 8
https://doi.org/10.5194/nhess-15-1859-2015
https://doi.org/10.5194/nhess-15-1859-2015
Research article
 | 
19 Aug 2015
Research article |  | 19 Aug 2015

Flash flood occurrence and relation to the rainfall hazard in a highly urbanized area

K. Papagiannaki, K. Lagouvardos, V. Kotroni, and A. Bezes

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Short summary
48 flash flood events in the urban Attica region (2005-2014) resulted in 3,500 fire service operations, mostly in autumn. Events were mostly associated with max accumulated rain over 20mm/24h and 3mm/10min. Impact intensity was particularly high for more than 60mm/24h. Rain intensity thresholds for flood triggering are produced for 15 sub-areas of the Attica region. The quality of the produced thresholds depends on the distribution and density of the rain gauges that cover each sub-area.
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