CCN concentrations and BC warming influenced by maritime ship emitted aerosol plumes over southern Bay of Bengal.

ABSTRACT: Significant quantities of carbon soot aerosols are emitted into pristine parts of the atmosphere by marine shipping. Soot impacts the radiative balance of the Earth-atmosphere system by absorbing solar-terrestrial radiation and modifies the microphysical properties of clouds. Here we examined the impact of black carbon (BC) on net warming during monsoon season over southern Bay-of-Bengal, using surface and satellite measurements of aerosol plumes from shipping. Shipping plumes had enhanced the BC concentrations by a factor of four around the shipping lane and exerted a strong positive influence on net warming. Compiling all the data, we show that BC atmospheric heating rates for relatively-clean and polluted-shipping corridor locations to be 0.06 and 0.16 K/day respectively within the surf

SUBMITTER: Ramana MV 

PROVIDER: S-EPMC4969613 | biostudies-literature | 2016 Aug

REPOSITORIES: biostudies-literature