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Characterization of aerosols over oceanic regions around India during pre-monsoon 2006
AbstractShip cruise observations of aerosol optical properties have been carried out over oceanic areas around India during pre-monsoon season of 2006. The results reveal rather significant day-to-day variability in aerosol optical thickness (AOT). Aerosol loading is found to be relatively high over the Bay of Bengal (BoB) i.e., AOT at 500nm is 0.36±0.12 which is higher than those over Arabian Sea (AS) i.e., 0.23±0.09 and North Indian Ocean (NIO) i.e., 0.26±0.10. Dominance of fine-mode (α=1.21±0.11) and coarse-mode (α=0.86±0.20) aerosol particles has been observed, respectively, over the BoB and AS regions. Second order Angstrom exponent shows predominant positive and negative curvatures over BoB and AS, respectively. High fine-mode aerosol loading over BoB is found to be associated with air masses originating from northeastern Indo-Gangetic plains and southeastern Myanmar. The observed short wave solar flux decrease due to aerosol extinction is found to be 24, 19 and 21Wm−2 for the BoB, AS and NIO, respectively.
Characterization of aerosols over oceanic regions around India during pre-monsoon 2006
AbstractShip cruise observations of aerosol optical properties have been carried out over oceanic areas around India during pre-monsoon season of 2006. The results reveal rather significant day-to-day variability in aerosol optical thickness (AOT). Aerosol loading is found to be relatively high over the Bay of Bengal (BoB) i.e., AOT at 500nm is 0.36±0.12 which is higher than those over Arabian Sea (AS) i.e., 0.23±0.09 and North Indian Ocean (NIO) i.e., 0.26±0.10. Dominance of fine-mode (α=1.21±0.11) and coarse-mode (α=0.86±0.20) aerosol particles has been observed, respectively, over the BoB and AS regions. Second order Angstrom exponent shows predominant positive and negative curvatures over BoB and AS, respectively. High fine-mode aerosol loading over BoB is found to be associated with air masses originating from northeastern Indo-Gangetic plains and southeastern Myanmar. The observed short wave solar flux decrease due to aerosol extinction is found to be 24, 19 and 21Wm−2 for the BoB, AS and NIO, respectively.
Characterization of aerosols over oceanic regions around India during pre-monsoon 2006
Kalapureddy, M.C.R. (Autor:in) / Devara, P.C.S. (Autor:in)
Atmospheric Environment ; 42 ; 6816-6827
06.05.2008
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Chemical composition of aerosols over peninsular India during winter
Elsevier | 2006
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