HR: 1340h
AN: GC23A-1297    [Abstracts]
TI: Time series analysis of Carbon Monoxide from MOPITT over the Asian Continent from 2000-2004
AU: * Bhattacharjee, P S
EM: pbhattac@gmu.edu
AF: IIT Kanpur, Department of Civil Engineering, IIT Kanpur, Kanpur, U.P 208016 India
AU: * Bhattacharjee, P S
EM: pbhattac@gmu.edu
AF: George Mason University, Department of Computational Sciences, MS 5C3, 4400 University Drive, Fairfax, VA 22030 United States
AU: Roy, P
EM: proy1@gmu.edu
AF: IIT Kanpur, Department of Civil Engineering, IIT Kanpur, Kanpur, U.P 208016 India
AU: Roy, P
EM: proy1@gmu.edu
AF: George Mason University, Department of Computational Sciences, MS 5C3, 4400 University Drive, Fairfax, VA 22030 United States
AB: The human population continues to grow and large parts of the world industrialize rapidly, causing changes in the global atmospheric chemistry. Carbon monoxide (CO) is a poisonous gas in the troposphere when highly concentrated, and is produced by fossil fuel combustion, biomass burning and through natural emissions from plants. It is also an important trace gas in the atmosphere and plays a major role in the atmospheric chemistry. We present a study of CO from the measurement of MOPITT (Measurement of Pollution in the Troposphere-Level 3 gridded data) instrument on NASA Terra satellite over India and Eastern Asia for the period of 2000-2004. Day- and night-time total column CO measurements are considered over the selected regions in India, China, Thailand and Japan. The selected regions comprise of industrial cities in the Asian continent which form the source of high CO in the atmosphere. The time series data do not show an overall increasing or decreasing trend, but CO is affected by seasonal variations, wind, and precipitation patterns. East Asian regions have higher and wider seasonal fluctuations than the Indian region. CO total column values over the Bay of Bengal are also high and can be explained through wind patterns from the land towards the ocean. Although the sources of CO are mostly confined to the land, it is transported globally through the atmosphere, and has high concentrations over the ocean.
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0345 Pollution: urban and regional (0305, 0478, 4251)
DE: 0365 Troposphere: composition and chemistry
DE: 1630 Impacts of global change (1225)
DE: 1640 Remote sensing (1855)
SC: Global Climate Change [GC]
MN: Fall Meeting 2005