Connecting surface emissions, convective uplifting, and long-range transport of carbon monoxide in the upper troposphere: New observations from the Aura Microwave Limb Sounder

Details Connecting surface emissions, convective uplifting, and long-range transport of carbon monoxide in the upper troposphere: New observations from the Aura Microwave Limb Sounder Connecting surface emissions, convective uplifting, and long-range transport of carbon monoxide in the upper troposphere: New observations from the Aura Microwave Limb Sounder

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007georl..3418812j&link_type=abstract

Geophysical Research Letters, Volume 34, Issue 18, CiteID L18812

Computer Science

Sound

19

Atmospheric Processes: Remote Sensing, Atmospheric Processes: Convective Processes, Atmospheric Composition And Structure: Troposphere: Constituent Transport And Chemistry, Biogeosciences: Pollution: Urban, Regional And Global (0345, 4251), Geographic Location: Asia

Scientific paper

Two years of observations of upper tropospheric (UT) carbon monoxide (CO) from the Aura Microwave Limb Sounder are analyzed; in combination with the CO surface emission climatology and data from the NCEP analyses. It is shown that spatial distribution, temporal variation and long-range transport of UT CO are closely related to the surface emissions, deep-convection and horizontal winds. Over the Asian monsoon region, surface emission of CO peaks in boreal spring due to high biomass burning in addition to anthropogenic emission. However, the UT CO peaks in summer when convection is strongest and surface emission of CO is dominated by anthropogenic source. The long-range transport of CO from Southeast Asia across the Pacific to North America, which occurs most frequently during boreal summer, is thus a clear imprint of Asian anthropogenic pollution influencing global air quality.

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