1. St. Petersburg State University; St. Petersburg Russia
2. Faculty of Mathematics and Physics; Charles University; Prague Czech Republic
3. Institute of Atmospheric Physics; CAS; Prague Czech Republic
4. NASA Goddard Space Flight Center; Greenbelt Maryland USA
5. Department of Climate and Space; University of Michigan; Ann Arbor Michigan USA
6. The Johns Hopkins University Applied Physics Laboratory; Laurel Maryland USA
7. Department of Physics and Space Science Center; University of New Hampshire; Durham New Hampshire USA