Effects on flood hazard in Marathon plain from the 2009 wildfire in Attica, Greece

Abstract

See, stats, and : https : / / www . researchgate . net / publication / 256839564 Effects Marathon wildfire , Greece Chapter DOI : 10 . 1007 / 978 - 3 - 642 - 19902 - 8_17 READS 26 1 : Michalis National 24 SEE Available : Michalis Retrieved : 30 Abstract In August 2009 a wildfire in northeast Attica , in Greece , burned ap - proximately 187 square km of forest and agricultural land , inducing significant damages in properties and infrastructure . The fire extended in 19 hydrological ba - sins affecting substantially the hydrological processes in the area and raising sig - nificant questions about changes in their flood risk regime . In this work , possible changes in peak discharge and the total runoff volume after intense rainfall , due to the wildfire effects in Charadros and Rapentosa catchments in Marathonas , Greece , are investigated . The results showed that peak discharge resulting from the 50 - year return period design storm will be increased between 13 . 8% and 19 . 8% in Rapentosa and Charadros . Peak flow rate resulting from the 100 - year de - sign storm will increase between 11 . 4% and 16 . 7% in the two basins . Total runoff volume presents an increase of 9 . 5% to 16 . 7% in the two catchments depending on the storm scenario . Furthermore , it is shown that a new probability regime has been introduced , as discharges connected with storms with annual probability of 1% , before the fire , will now require storms of 1 . 6% annual probability of occur - ring in Charadros and 1 . 3% in Rapentosa .