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Full-Text Articles in Physical Sciences and Mathematics
Distributions Of Trace Gases And Aerosols During The Dry Biomass Burning Season In Southern Africa, Parikhit Sinha, Peter V. Hobbs, Robert J. Yokelson, Donald R. Blake, Song Gao, Thomas W. Kirchstetter
Distributions Of Trace Gases And Aerosols During The Dry Biomass Burning Season In Southern Africa, Parikhit Sinha, Peter V. Hobbs, Robert J. Yokelson, Donald R. Blake, Song Gao, Thomas W. Kirchstetter
Chemistry and Physics Faculty Articles
Vertical profiles in the lower troposphere of temperature, relative humidity, sulfur dioxide (SO2), ozone (O3), condensation nuclei (CN), and carbon monoxide (CO), and horizontal distributions of twenty gaseous and particulate species, are presented for five regions of southern Africa during the dry biomass burning season of 2000. The regions are the semiarid savannas of northeast South Africa and northern Botswana, the savanna-forest mosaic of coastal Mozambique, the humid savanna of southern Zambia, and the desert of western Namibia. The highest average concentrations of carbon dioxide (CO2), CO, methane (CH4), O3, …
Water-Soluble Organic Components In Aerosols Associated With Savanna Fires In Southern Africa: Identification, Evolution, And Distribution, Song Gao, Dean A. Hegg, Peter V. Hobbs, Thomas W. Kirchstetter, Brian I. Magi, Martin Sadilek
Water-Soluble Organic Components In Aerosols Associated With Savanna Fires In Southern Africa: Identification, Evolution, And Distribution, Song Gao, Dean A. Hegg, Peter V. Hobbs, Thomas W. Kirchstetter, Brian I. Magi, Martin Sadilek
Chemistry and Physics Faculty Articles
During the SAFARI 2000 field campaign, both smoke aerosols from savanna fires and haze aerosols in the boundary layer and in the free troposphere were collected from an aircraft in southern Africa. These aerosol samples were analyzed for their water-soluble chemical components, particularly the organic species. A novel technique, electrospray ionization-ion trap mass spectrometry, was used concurrently with an ion chromatography system to analyze for carbohydrate species. Seven carbohydrates, seven organic acids, five metallic elements, and three inorganic anions were identified and quantified. On the average, these 22 species comprised 36% and 27% of the total aerosol mass in haze …