Jacob, D.J., B.G. Heikes, S.-M. Fan, J. Logan, D. Mauzerall, J.D. Bradshaw, H.B. Singh, G.L. Gregory, and G.W. Sachse (1996), Origin of Ozone and NOx in the tropical troposphere: A photochemical analysis of aircraft observations over the south Atlantic basin, J. Geophys. Res., 101.D19, 24,235-24.