There are more than 1200 lakes (>1 km2) on the Tibetan Plateau (TP), covering a total area about 47,000 km2.The role of lakes on regional climate is significant because they can regulate regional precipitation distribution [1,2], particularly snow cover [3],through lake-atmosphere interaction.Lakes are also known to act as heat sources during winter due to their different heat capacity with the surrounding land [3].When cold air passes over relatively warm surface of an unfrozen lake, atmospheric instability and vertical motion of air increase, and water vapor from the lake surface is taken up to the air and may be released as lake effect snow (LES) over and/or downwind of the lake [1,3].Thus, snow cover can be initiated or significantly enhanced by this effect.