Physics
Scientific paper
Apr 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009georl..3608810l&link_type=abstract
Geophysical Research Letters, Volume 36, Issue 8, CiteID L08810
Physics
8
Atmospheric Composition And Structure: Troposphere: Composition And Chemistry, Atmospheric Composition And Structure: Aerosols And Particles (0345, 4801, 4906), Atmospheric Composition And Structure: Air/Sea Constituent Fluxes (3339, 4504), Atmospheric Composition And Structure: Pollution: Urban And Regional (0305, 0478, 4251), Atmospheric Composition And Structure: Troposphere: Constituent Transport And Chemistry
Scientific paper
This study examines atmospheric reactive chlorine chemistry at the Cape Verde Atmospheric Observatory in the eastern tropical Atlantic. During May-June, 2007, Cl2 levels ranged from below detection (˜2 ppt) to 30 ppt. Elevated Cl2 was associated with high HNO3 (40 to 120 ppt) in polluted continental outflow transported in the marine boundary layer (MBL) to the site. Lower Cl2 was observed in recently subsided air masses with multiday free tropospheric oceanic trajectories and in air containing Saharan dust. Model simulations show that the observations of elevated Cl2 in polluted marine air are consistent with initiation of Cl chemistry by OH + HCl and subsequent heterogeneous, autocatalytic Cl cycling involving marine aerosols. Model estimates suggest that Cl atom reactions significantly impact the fates of methane and dimethylsulfide at Cape Verde and are moderately important for ozone cycling.
Finley Brandon D.
Keene William C.
Lawler Michael J.
Pszenny Alexander A. P.
Read K. A.
No associations
LandOfFree
Pollution-enhanced reactive chlorine chemistry in the eastern tropical Atlantic boundary layer does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Pollution-enhanced reactive chlorine chemistry in the eastern tropical Atlantic boundary layer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pollution-enhanced reactive chlorine chemistry in the eastern tropical Atlantic boundary layer will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1521965