Rapid growth of urban ultrafine aerosols and their impact on shallow clouds and precipitation in the Amazon rainforest

Rahul A Zaveri1, Jian Wang2, Jiwen Fan3, Yuwei Zhang3, John Shilling3, Alla Zelenyuk3, Fan Mei3, Rob K Newsom4, Mikhail S Pekour3, Jason M Tomlinson5, Jennifer M Comstock1, ManishKumar Shrivastava6, Edward Fortner7, Luiz Machado8, Paulo Artaxo9 and Scot T Martin10, (1)Pacific Northwest Natl Lab, Richland, WA, United States, (2)Brookhaven Natl Lab, Upton, NY, United States, (3)Pacific Northwest National Laboratory, Richland, WA, United States, (4)Pacific Northwest National Laboratory, Atmospheric Sciences & Global Change Division, Richland, WA, United States, (5)Pacific Northwest National Lab, Richland, WA, United States, (6)Pacific Northwest National Labs, Richland, WA, United States, (7)Aerodyne Research Inc., Billerica, MA, United States, (8)INPE National Institute for Space Research, Sao Jose dos Campos, Brazil, (9)University of Sao Paulo, Sao Paulo, Brazil, (10)Harvard University, Cambridge, MA, United States