Distribution of tropospheric ozone in the tropics from satellite and ozonesonde measurements

Details Distribution of tropospheric ozone in the tropics from satellite and ozonesonde measurements Distribution of tropospheric ozone in the tropics from satellite and ozonesonde measurements

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jatp...54..589f&link_type=abstract

Journal of Atmospheric and Terrestrial Physics (ISSN 0021-9169), vol. 54, no. 5, May 1992, p. 589-597. Research supported by NAS

Computer Science

Sound

32

Atmospheric Sounding, Ozonometry, Sage Satellite, Satellite Observation, Total Ozone Mapping Spectrometer, Tropical Regions, Troposphere, Africa, Climatology, Data Bases, Northern Hemisphere

Scientific paper

Measurements from two independent satellite data sets have been used to derive the climatology of the integrated amount of ozone in the troposphere. These data have led to the finding that large amounts of ozone pollution are generated by anthropogenic activity originating from both the industrialized regions of the Northern Hemisphere and from the southern tropical regions of Africa. To verify the existence of this ozone anomaly over this region of the world, an ozonesonde capability has been established at Ascension Island, located downwind of the primary source region of this ozone pollution, which likely results from the photochemical oxidation of emissions emanating from the widespread burning of savanna. These first ozonesonde profiles suggest that much of the ozone generated over Africa during the 'burning season' (primarily July-October) reaches Ascension Island. These high levels of ozone in the lower troposphere become much lower by December. Elevated ozone concentrations in the middle troposphere are once again evident in February, which may be the result of biomass burning emissions being transported from western and northern Africa.

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