Characteristics of Lake Sediment from Southwestern Mongolia and Comparison with Meteorological Data oleh Uyangaa Udaanjargal, Noriko Hasebe, Davaadorj Davaasuren, Keisuke Fukushi, Yukiya Tanaka, Baasansuren Gankhurel, Nagayoshi Katsuta, Shinya Ochiai, Yoshiki Miyata, Tuvshin Gerelmaa