Influences of large - scale convection and moisture source on monthly 2 precipitation isotope ratios observed in Thailand , Southeast Asia 3

precipitation isotope ratios observed in Thailand, Southeast Asia 3 Zhongwang Wei, Xuhui Lee, Zhongfang Liu, Uma Seeboonruang, Masahiro Koike, Kei 4 Yoshimura 5 6 School of Forestry and Environmental Studies, Yale University, New Haven, Connecticut, USA. 7 Yale-NUIST Center on Atmospheric Environment, Nanjing University of Information Science & 8 Technology, Nanjing, Jiangsu, China. 9 State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China 10 Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang, Thailand 11 Institute of Industrial Science, The University of Tokyo, Komaba, Tokyo, Japan. 12 Atmosphere and ocean research institute, The University of Tokyo, Kashiwa, Chiba, Japan. 13 Preprint submitted to EPSL 14 15 16 Corresponding author: Zhongwang Wei, School of Forestry and Environmental Studies, Yale 17 University, New Haven, Connecticut, USA. ([email protected]) 18