Deriving brown carbon from multiwavelength absorption measurements: method and application to AERONET and Aethalometer observations - Wang, Xuan; Heald, Colette L; Sedlacek, Arthur J; Sá, Suzane S. de; Martin, Scot T; Alexander, M Lizabeth; Watson, Thomas B; Aiken, Allison C; Springston, Stephen R; Artaxo Netto, Paulo Eduardo (Atmospheric Chemistry and Physics, 2016)