We have investigated the dynamics of atmospheric gravity waves, long-lasting mesoscale convective system, and their effects on the large-scale flow through observational, theoretical, and numerical modeling approaches.   Publication list is updated (November, 2009).   Publication list is updated. (June, 2008).   Publication list is updated (December, 2007).   Postdoc section is updated (March, 2006). Access to unpublished research results is restricted. An authorization is needed to access to the discussion rooms and technical notes. If you want to access to these sections, please inform web master of your id and password to be used in these two sections. If you have any question or suggestion, please email to web master wook at atmos dot yonsei dot ac dot kr       Profile and educational background of advisor, prof. Hye-Yeong Chun Profile and educational background of post doctors Profile of graduate students Results of recent research, Technical note, and Discussion room Results of Lab seminar Publication list of our lab Facilities and software used in our lab Web board Link to useful website