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6. Conclusion
As we have seen throughout this article, tools exist to better anticipate flash floods. However, forecasting such phenomena remains limited in time and space, due to their intrinsic characteristics (suddenness, localized intense rainfall, small catchment areas affected). As a result, forecasting times may still appear too short for optimal crisis management. This is particularly true for small watersheds of the order of a few dozen km 2 , or when the rainfall event is highly convective and generates locally heavy precipitation. However, a great deal of progress has been made in terms of weather forecasting –, thanks in particular to the use of radar observations –, which enable us to forecast precipitation accurately to within 3 hours in the best of cases. The future of these warning systems will necessarily involve extending these forecast times...
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Conclusion
Bibliography
Software tools
GRASS, a free Geographic Information System with numerous hydrological tools http://grass.fbk.eu/
Websites
VIGICRUES National flood watch information http://www.vigicrues.gouv.fr/
FFG Flash Flood Guidance maps issued by the US National Weather Service http://www.srh.noaa.gov/rfcshare/ffg.php
OHMCV Observatoire hydrométéorologique...
Events
Plinius, annual conference dedicated to Mediterranean thunderstorms http://www.egu.eu/meetings/conference-series/plinius-topical-conferences.html
Floodrisk, a conference dedicated to flood risk management http://www.floodrisk2012.net/
...Regulations
Directive 2007/60/EC of October 23, 2007 on the assessment and management of flood risks
Law no. 2003-699 of July 30, 2003 on the prevention of technological and natural risks and the repair of damage (consolidated version at April 30, 2010).
Environment Code Legislative Part
– L 562-1 to 9: PPR plans
– L 563-3: flood markers...
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