Draix-Bleone Observatory

Location

44° 7' 48" N, 6° 20' 60" E
Brief Site Description: 
Water and sediment fluxes in a highly erodible mountainous environment
Detailed Site Description: 

Since 1983, several small catchments have been instrumented in the neighborhood of Draix and Le Brusquet (French Southern Alps) to study mountain floods and erosion. This observatory is located in a badland area characterized by a very erodible shale substrate, high slopes, mostly barren terrain, resulting into very high erosion rates and high sediment yield during the floods.
The observatory was extended downstream in 2007 to the Bléone catchment. This larger catchment integrates a higher diversity of lithologies, vegetation cover and land use. Studies focusing on scale effects, water and sediment management at the regional scale, were developped in this framework.
Research teams from different universities and institutes are currently involved in multidisciplinary research on the observatory. Hydrologists, civil engineers, geographers, geomorphologists, geochimists and ecology specialists have been working together on a wide range of projects to investigate water and sediment fluxes through the system, and the effects of vegetation on them.
The Draix-Bléone observatory was first labelled as an Observatory for Research in Environment by the French Ministry for Research in 2002, and is now part of the French Network for the Observation of the Critical Zone (RBV).
 

http://oredraixbleone.irstea.fr/en/accueil/

Field Site Type: 
International affiliate
Registration: 
Unregistered
Network(s): 
RBV
Geology: 
shale
Soil Order: 
Unknown
Study Start Date: 
Tuesday, January 1, 2002 - 00:00
Mean Annual Precipitation: 
950millimeters / year
Average Annual Temperature: 
10°C
Hydrology: Surface water stream order: 
Unknown
Hydrology: Surface water - Stream Flow Performance: 
Unknown
Hydrology: Groundwater: 
Unknown
Land Cover: 
Barren Land
Climate: 
Mediterranean
Sub-Climate: 
Unknown
Group visibility: 
Public - accessible to all site users