Instability conditions of marly hillslopes: towards landsliding or gullying? The case of the Barcelonnette Basin, South East France

Analysis of a landslide multi-date inventory in a complex mountain landscape: the Ubaye valley case study

“…The study area is located in the middle part of the Ubaye valley (south-eastern France) severely affected by different landslides types (Maquaire et al, 2003), and the investigated time period extends from 1956 to 2010.…”

“…Numerous studies were conducted for the analysis of mass movements (Flageollet et al, 1999;Malet et al, 2005a;Maquaire et al, 2003;Razak et al, 2011;Remaître et al, 2005;Thiery, 2007;Thiery et al, 2014) and several landslide types were mapped and analysed along the slopes (Fig. 1a).…”

Analyse spatiale, évaluation et cartographie du risque glissement de terrain

“…La démarche scientifique d'analyse pour le zonage du risque « glissement de terrain » est synthétisée par les questionnements de la Figure 1 (Malet, 2003), en distinguant les caractéristiques des phénomènes générateurs d'un aléa et les caractéristiques des enjeux. Les questions 1 et 2 permettent d'évaluer la susceptibilité des terrains, c'est-à-dire la probabilité d'occurrence spatiale d'un phénomène pour plusieurs facteurs de prédisposition environnementaux ; en complément, les questions 3 à 5 permettent d'évaluer l'aléa stricto-sensu, c'est-à-dire la probabilité d'occurrence spatiale, temporelle et de propagation d'un phénomène d'intensité donnée (Cruden et Fell, 1997 ;Fell et al, 2005).…”

Airborne laser scanning : for forested landslides investigation in temperate and tropical invironments

“…(Flageollet et al, 1999). Maquaire et al (2003) reported that the mean annual temperature is 7.5 0 C with 130 frost days per annum. Geologically, the northern part of Bois Noir is characterized by morainic colluvium and autochthonous Callovo-Oxfordian unstable black marls, overlaid by deposits of reworked glacial till.…”

“…Geologically, the northern part of Bois Noir is characterized by morainic colluvium and autochthonous Callovo-Oxfordian unstable black marls, overlaid by deposits of reworked glacial till. The area is highly affected by landslides (Flageollet et al, 1999;Maquaire et al, 2003). The southern part of Bois Noir is characterized by outcrops of limestone in the summit crest and features steep slopes of up to 70 , with extensive scree slopes.…”