Analysis of Aeronet Extended Wavelength Retrievals of Aerosol Absorption Parameters Including 380 nm and 500 nm for Detection of Brown Carbon in Biomass Burning and Iron Oxides in Desert Dust. - Thomas F. Eck; Brent N. Holben; Alexander Sinyuk; David M. Giles; Antti Arola; Jeffrey S. Reid; Ilya Slutsker; Joel S. Schafer; Mikhail G. Sorokin; Alexander Smirnov 002; Anthony D. LaRosa; Jason Kraft (IGARSS, 2021)