@Article{BrowellGregHarrKirc:1990:OzAeDi,
               author = "Browell, E. V. and Gregory, G. L. and Harriss, R. C. and 
                         Kirchhoff, Volker Walter Johann Heinrich",
                title = "Ozone and aerosol distributions over the Amazon Basin during the 
                         wet season",
              journal = "Journal of Geophysical Research",
                 year = "1990",
               volume = "95",
               number = "D10",
                pages = "16887--16901",
                month = "Sept.",
             keywords = "GEOFISICA ESPACIAL.",
             abstract = "Measurements of ozone (O3) and aerosols were made over the 
                         tropical rain forest of Brazil during ther wet season in April-May 
                         1987 as part of tha NASA Global Tropospheric Experiment to study 
                         the Amazon boundary layer. Remote and in situ measurements of O3 
                         and aerosols were made from aircraft on flights over Brazil in the 
                         vicinity of Manaus and between Manaus and Belem. Ozonesonde data 
                         were also obtained near Manaus. Ozone mixing ratios <12 ppbv were 
                         found in the mixed layer during the wet season with no significant 
                         evidence of O3 produced from biomass burning or photochemistry. 
                         These values are lower than those found during the 1985 dry season 
                         by 6-8 ppbv. These low O3 mixing ratios indicate a strong removal 
                         process near the surface during the wet season. The region from 
                         the mixed layer top to 3 km in altitude had a slowly increasing O3 
                         profile from 12 to 20 ppbv. On long-range flights between Manaus 
                         and Belem, no significant difference was found in the distribution 
                         of O3 above the mixed layer between the inland tropical rain 
                         forest and the marine conditions near the coast. Within the mixed 
                         layer, there was a definite trend to lower O3 levels above the 
                         forest compared to over the ocean. This reflects the marked 
                         difference in the sinks for O3 over these two regions. The rate of 
                         growth of the mixed layer over the rain forest in the wet season 
                         was found to be 9 cm s-1, which is within the 7-10 cm s-1 range 
                         found for the dry season. There was no evidence of the trade wind 
                         inversion that was seen during the dry season, and due to frequent 
                         precipitation, the background aerosol loading was lower in the wet 
                         season than in the dry season.",
                 issn = "0148-0227 and 2156-2202",
                label = "7211",
           targetfile = "5874.pdf",
        urlaccessdate = "30 abr. 2024"
}