1. Flash flood occurrence and relation to the rainfall hazard in a highly urbanized area.
- Author
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Papagiannaki, K., Lagouvardos, K., Kotroni, V., and Bezes, A.
- Subjects
FLOOD damage ,RAINFALL ,METEOROLOGICAL stations ,ATMOSPHERIC models - Abstract
The paper examines the flash flood events that occurred during a decade in the Attica prefecture, the most urbanized region of Greece, with the aim of assessing the local vulnerability to the flash flood hazard and the effect of rainfall upon the magnitude of the induced damages. The analysis incorporates rainfall records from a network of 28 surface meteorological stations and information on the spatial distribution of the flash flood events that is derived from the active database of damaging weather events maintained by the atmospheric modelling group of the National Observatory of Athens. The main findings concern the relation between the flash flood impact, as measured by the Fire Service operations in flooded properties, and precipitation in various time intervals, as well as the possibility to define rainfall intensity thresholds for flood triggering at a more local level. It is shown that the quality of the produced thresholds depends on the distribution and density of the rain gauges that cover each specified geographical area of the Attica region. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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