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The use of satellite data to determine the distribution of ozone in the troposphereMeasurements 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 at low latitudes, an ozonesonde capability has been established at Ascension Island (8 deg S, 15 deg W) since July 1990. According to the satellite analyses, Ascension Island is 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 savannas and other biomass. These in situ measurements confirm the existence of large amounts of ozone in the lower atmosphere. A summary of these ozonesonde data to date will be presented. In addition, we will present some ozone profile measurements from SAGE II which can be used to provide upper tropospheric ozone measurements directly in the tropical troposphere. A preliminary comparison between the satellite observations and the ozonesonde profiles in the upper troposphere and lower stratosphere will also be presented.
Document ID
19930047414
Document Type
Conference Paper
Authors
Fishman, Jack (NASA Langley Research Center Hampton, VA, United States)
Watson, Catherine E. (NASA Langley Research Center Hampton, VA, United States)
Brackett, Vincent G. (NASA Langley Research Center Hampton, VA, United States)
Fakhruzzaman, Khan (NASA Langley Research Center Hampton, VA, United States)
Veiga, Robert E. (ST Systems Corp. Hampton, VA, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1991
Publication Information
Publication: In: Remote sensing of atmospheric chemistry; Proceedings of the Meeting, Orlando, FL, Apr. 1-3, 1991 (A93-31376 11-35)
Subject Category
ENVIRONMENT POLLUTION
Distribution Limits
Public
Copyright
Other