Sahara and Sahel vulnerability to climate changes, lessons from the past - Focus on the Ounianga lake region (NE Chad)

摘要: (1) LSCE, CEA-CNRS-UVSQ, CEA/Saclay, 91191 Gif sur Yvette, France (christophe.grenier@lsce.ipsl.fr), (2) LASG, Institute of Atmospheric Physics, No. 40 Huayanli, Chaoyang District, 1000029 Beijing, China, (3) Laboratoire de Glaciologie et Geophysique l’Environnement. LGGE/CNRS. 54 rue Moliere, BP 96. 38402 St Martin d’Heres Cedex, France, (4) Observatoire Aquitain des Sciences l’Univers, UMR 5804 – LAB, 2 l’Observatoire 89, 33270 Floirac,