Haute-Savoie (74), Savoie (73), Isere (38) | Hautes Alpes (05), Maritime Alpes (06), Alpes de Haute-Provence (04) | Corsica | Eastern Pyrenees (66), Hautes Pyrenees (65), Andorra, Ariege (09), Haute Garonne (31), Atlantic Pyrenees (64)
A little bit of snow science in the lab and in the field. The engineers are looking at a particular type of weak layer formed by surface hoar (aka frost). It forms in anticyclonic conditions where there is a strong temperature gradient on the surface of the snow. A thin weak layer it features high spatial variability making it hard to detect; as a consequence it probably takes out more snow professionals than any other weak layer.
A little afternoon tour to test the fresh snow and gear. There is no base in the snow pack below 1700 meters but still some rocks below 1900 meters. The snow was hardened by wind at the col de Oudis and some other exposed spots.
Posted by davidof on the 2014-11-19
Pas de l'Arche (Arch Passage)
From the col de Porte follow the trail to the cabane de Bachasson (1640m). From here follow a horizontal trail from immediately below the hut to the SW (direction le Sappey).
Posted by davidof on the 28 October 2014