Convective outflow of South Asian pollution: A global CTM simulation compared with EOS MLS observations
Author
Li, Qinbin
Jiang, Jonathan H.
Wu, Dong L.
Read, William G.
Livesey, Nathaniel J.
Waters, Joe W.
Zhang, Yongsheng
Wang, Bin
Filipiak, Mark J.
Davis, Cory P.
Turquety, Solene
Wu, Shiliang
Park, Rokjin J.
Note: Order does not necessarily reflect citation order of authors.
Published Version
https://doi.org/10.1029/2005GL022762Metadata
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Li, Qinbin, Jonathan H. Jiang, Dong L. Wu, William G. Read, Nathaniel J. Livesey, Joe W. Waters, Yongsheng Zhang, et al. 2005. “Convective Outflow of South Asian Pollution: A Global CTM Simulation Compared with EOS MLS Observations.” Geophys. Res. Lett. 32 (14) (July 28): n/a–n/a. doi:10.1029/2005gl022762.Abstract
A global 3-D chemical transport model is used to analyze observations of carbon monoxide (CO) and upper tropospheric clouds from the EOS Microwave Limb Sounder (MLS). MLS observations during 25 August–6 September 2004 reveal elevated CO and dense high clouds in the upper troposphere over the Tibetan plateau and southwest China, collocating with the upper level Tibetan anticyclone. Model simulations indicate the transport of boundary layer pollution by Asian summer monsoon (ASM) convection and orographic lifting to the upper troposphere over South Asia, where simulated distributions of CO resemble MLS observations. Model results also show elevated aerosols in the anticyclone region. Analysis of model simulated CO and aerosols indicate that the Tibetan anticyclone could ‘trap’ anthropogenic emissions lifted from northeast India and southwest China. These aerosols may be responsible for the formation of some of the dense high clouds.Terms of Use
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