Studies on geoeffectiveness of coronal mass ejections and near-earth space environment
日冕物质抛射的对地有效性和近地空间环境的研究

This work focused on the two aspects of the space weather.One is the sources of the disaster space weather-coronal mass ejections(CME). We set up a new ice-cream cone model to describle the CMEs and discussed the geoeffectiveness of CMEs.The other is the end of the space weather-near-Earth environment. We introduced a newly installed Mie-Rayleigh-Sodium fluorescent lidar and its initial observations for the sodium layer between 80~110km,and also employed a meteor radar to study the mesospheric and low-thermospheric tides by canonical correlation alaysis.