Physics – Geophysics
Scientific paper
Apr 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3108110k&link_type=abstract
Geophysical Research Letters, Volume 31, Issue 8, CiteID L08110
Physics
Geophysics
7
Atmospheric Composition And Structure, Atmospheric Composition And Structure: Troposphere-Constituent Transport And Chemistry, Exploration Geophysics: Remote Sensing, Global Change: Climate Dynamics (3309), Global Change: Atmosphere (0315, 0325)
Scientific paper
In this study we identify recurring plumes of tropospheric NO2 originating from Africa and Indonesia during the monsoon transition periods over the central Indian Ocean (CIO, 5°N-30°S, 55°E-95°E), based on GOME satellite observations and global model (MATCH-MPIC) simulations. Despite the relatively short lifetime of NOx, these strong plumes can develop due to the pronounced anti-cyclonic circulation over the CIO, and the weak maritime convection, which limits vertical mixing. Model results indicate that the plumes are mainly transported in the middle troposphere (MT). Thus, the CIO in the Southern Hemisphere (SH) is not always as pristine as found in INDOEX during the winter monsoon.
Burrows John P.
Kunhikrishnan T.
Ladstätter-Weißenmayer Annette
Lawrence Mark G.
Richter Andreas
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