*thomas p kurosu¹, Kevin bowman¹, John Worden¹, Vijay Natraj¹, Kazuyuki Miyazaki¹, James McDuffie¹, Ming Luo¹, Susan Kulawik², Elva Kuai¹, Kristen Fahy¹ (1.NASA Jet Propulsion Laboratory/California Institute of Technology, Pasadena, CA 91109, 2.Bay Area Environmental Research Institute, Moffett Field, CA 94035)