[1] Finnish Meteorol Inst, Kuopio 70211, Finland
[2] NASA, Langley Res Ctr Hampton, Hampton, VA 23681 USA
[3] Ctr Int Climate & Environm Res Oslo CICERO, N-0318 Oslo, Norway
[4] Natl Observ Athens, Inst Environm Res & Sustainable Dev, Athens 15236, Greece
[5] Univ Illinois, Dept Atmospher Sci, Urbana, IL USA
[6] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20770 USA
[7] Indian Inst Technol, Dept Civil Engn, Kanpur 208016, Uttar Pradesh, India