Institution: | 1. Insitute of Physics, St. Petersburg State University, Ulyanovskaya 1, St. Petersburg, Petrodvoret 198504, Russia;2. MS WT15, Center for Space Sciences, University of Texas at Dallas, 800 W Campbell Rd., Richardson, TX 75080-3021, USA;3. Department of Geography, East China Normal University, 3663 N. Zhongshan R.D., Shanghai 200062, China |