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Global distribution of tropospheric ozone and its precursors: A view from space

Ghude, SD and Kulkarni, PS and Beig, G and Jain, SL and Arya, BC (2010) Global distribution of tropospheric ozone and its precursors: A view from space. International Journal of Remote Sensing, 31 (2). pp. 485-495.

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Abstract

Satellite-borne tropospheric ozone measurements obtained from the tropospheric ozone residual (TOR) method, CO from the MOPITT (at 850 hPa level) measurements and NO2 from the SCIAMACHY measurements for the three-year period 2003-2005 have been utilized to examine the distribution of the pollutant sources and long-range transport on a global scale. Elevated tropospheric ozone columns have been observed over regions of high NO2 and CO concentrations in the northern and southern hemispheres. High levels of the tropospheric ozone column have been observed below about 5°S in the vicinity of the biomass burning regions and extend from continents out over the Atlantic during October. The seasonal distribution of tropospheric O3 and its precursors in the southern hemisphere shows the strong correlation with the seasonal variation of biomass burning in Africa and South America. Northern hemisphere summer shows the widespread ozone and CO pollution throughout the middle latitudes. The inter-hemispheric gradient of ozone and CO found to be decreased during October. Large-scale transport of the ozone and CO over the Atlantic and Pacific Oceans has been clearly identified. Strong inter-continental transport has been observed to occur from west to east along with the mid-latitude winds in the northern hemisphere.

Item Type: Article
Additional Information: Copyright of this article belongs to Taylor & Francis
Uncontrolled Keywords: 850-hPa; Biomass burning regions; Biomass-burning; CO concentrations; Elevated tropospheric ozones; Global distribution; Global scale; Large-scale transport; Long range transport; Northern Hemispheres; Pacific ocean; Pollutant sources; Sciamachy measurement; Seasonal distributions; Seasonal variation; South America; Southern Hemisphere; Strong correlation; Tropospheric O; Tropospheric ozone, Oceanography; Ozone; Troposphere, Air pollution, atmospheric pollution; biomass burning; long range transport; Northern Hemisphere; ozone; pollutant source; satellite altimetry; SCIAMACHY; seasonal variation; Southern Hemisphere; troposphere, Africa; South America
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 23 May 2015 08:46
Last Modified: 23 May 2015 08:46
URI: http://moeseprints.incois.gov.in/id/eprint/813

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