Estimation of the isotopic composition and origins of winter precipitation over Japan using a regional isotope circulation model

Masahiro Tanoue1, Kimpei Ichiyanagi2, Kei Yoshimura3, Jun Shimada2 and Yukiko Hirabayashi4, (1)The University of Tokyo, Tokyo, Japan, (2)Kumamoto University, Faculty of Advanced Science and Technology, Kumamoto, Japan, (3)The University of Tokyo, Institute of Industrial Science, Kashiwa, Japan, (4)The Shibaura Institute of Technology, Tokyo, Japan