Yue Huang¹, Jasper F Kok², Tetsu Sakai³, Hannakaisa Lindqvist⁴, Konrad Kandler⁵, Timo Nousiainen⁴ and Olli Jokinen⁶, (1)University of California Los Angeles, Los Angeles, CA, United States, (2)University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, CA, United States, (3)Meteorological Research Institute, Tsukuba, Japan, (4)Finnish Meteorological Institute, Helsinki, Finland, (5)Technische Universität Darmstadt, Institut für Angewandte Geowissenschaften, Darmstadt, Germany, (6)Online Map Quality Analyst, Lionbridge, Finland