Purpose


    Middle atmosphere sciences have rapidly progressed in recent
   years, owing to recent development of observational methods,
   computer, and theory of middle atmosphere dynamics
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     On the other hand,  scientific investigation of ozone depletion
   in the polar region, and cooling of the stratosphere and warming
   of the  troposphere etc. is  socially demanded.

      In this project, most active middle  atmosphere  scientists are
   organized to investigate stratospheric ozone, global climate
   change, and environmental issue, from a view point of
   dynamical processes and transport of matter.

      The project consists of following three groups, A) analyses
   of satellite data,  B) numerical experiments by general circulation
   models, C) studies of basic dynamical processes.

      This project is done as a part of international climate study
    project, named SPARC.