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The Cévennes-Vivarais Mediterranean Hydro-Meteorological Observatory


Delrieu Guy

The "Cévennes-Vivarais Mediterranean Hydro-Meteorological Observatory" (OHM-CV is the French acronym) is a research initiative aimed at improving the understanding and modelling of the intense Mediterranean rain events that frequently result in devastating flash-floods in the South of France (e.g., Nîmes 1988, Vaison la Romaine 1992, Aude 1999, Gard 2002) like in other Mediterranean countries. A primary objective of the project is to bring together the skills of meteorologists and hydrologists, modellers and instrumentalists, researchers and practitioners, to cope with these rather unpredictable events.
The OHM-CV observation strategy is comprised of three complementary lines: (i) detailed, longlasting and modern hydro-meteorological observation over part of the region of interest, the Cévennes-Vivarais region; (ii) post-flood investigation after all the extreme events occurring over the entire French Mediterranean region and (iii) use of historical information available on past floods.
In parallel, several research projects, aimed in particular at a coupled hydro meteorological modelling approach, are developed.

Website : http://www.lthe.hmg.inpg.fr/OHM-CV/