NAME =  Kei Yoshimura  
ORGANIZATION =  Institute of Industrial Science, University of Tokyo  
ADDRESS =  4-6-1 Komaba, Meguro, Tokyo 153-8505  
COUNTRY =  Japan  
PHONE =  3-5452-6382  
FAX =  3-5452-6383  
E-MAIL =  kei@iis.u-tokyo.ac.jp  
POSTER_ONLY =  no  
THEME =  T5  
DATE =  06-Aug-04-13:40:56  
ABSID = T5KY06Aug04134056 
TITLE = Effect of land surface processes on precipitation isotopes 
AUTHOR_1 = Kei Yoshimura 
INSTITUTION_1 = IIS, Univ. of Tokyo 
PRESENTER = AUTHOR_1 
ABSTRACT = Precipitation isotopes variability is dominantly controlled by large-scale atmospheric moisture transport processes. However, we cannot neglect some effect of land surface processes on the variability of precipitation isotopes; in particular, the effect on diurnal variations on precipitation seems quite large. To take a deeper insight on short-term variability of precipitation isotopes, including diurnal variability, the authors developed an isotope-incorporated land surface model coupled with the existed atmospheric isotope circulation model. The original land surface model is MATSIRO (Minimal Advanced Treatments of Surface Interaction and Runoff) by Takata et al. (2003). The atmospheric model, we used the Rayleigh-type isotope circulation model (Yoshimura et al., 2003).