Monitoring the snowpack volume in a sinkhole on Mount Lebanon using time lapse Photogrammetry

Charbel Abou Chakra1, Simon Gascoin2, Janine Somma3, Laurent Drapeau4 and Pascal Fanise4, (1)Saint Joseph University, Department of Geography, B.P. 17-5208 Mar Mikhael, Beyrouth 1104 2020 - Liban, Lebanon, (2)CNRS, Centre d'Etudes Spatiales de la Biosphere (CESBIO), Paris Cedex 16, France, (3)Saint Joseph University, B.P. 17-5208 Mar Mikhael, Beyrouth 1104 2020 - Liban, Lebanon, (4)Centre d'Etudes Spatiales de la Biosphere, Toulouse Cedex 9, France