The MU (Middle and Upper atmosphere) radar installed in Koka, Shiga, Japan (34.85N, 136.10N) is one of the most powerful and multi-functional VHF-band atmospheric radar operated by Research Institute for Sustainable Humanosphere (RISH), Kyoto University. The MU radar imaging observation system installed in 2004 enables us to monitor detailed structure inside radar range volume.
The Equatorial Atmosphere Radar (EAR) is an atmospheric radar located in Kototabang, West Sumatra in the Republic of Indonesia is operated by collaboration between RISH and National Institute of Aeronautics and Space of Indonesia (LAPAN), Indonesia since 2001.
On May, 2012, the collaborative research programs of the MU radar and EAR are integrated to promote cooperative researches to use both radars. As the first attemt of the new program, we widely call for research proposals to use the MU radar, EAR, and their related facilities to world scientists．Proposal of globally networked observations using the MU radar, EAR and other radars is also welcomed.