Vertical profiles of submicron aerosol single scattering albedo over the Indian region immediately before monsoon onset and during its development: research from the SWAAMI field campaign

Vertical structures of aerosol single scattering albedo (SSA), from near the surface through the free troposphere, have been estimated for the first time at distinct geographical locations over the Indian mainland and adjoining oceans, using in situ measurements of aerosol scattering and absorption...

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Bibliographic Details
Published in:Atmospheric chemistry and physics 2020-04, Vol.20 (6), p.4031-4046
Main Authors: Manoj, Mohanan R, Satheesh, Sreedharan K, Moorthy, Krishnaswamy K, Coe, Hugh
Format: Article
Language:English
Subjects:
Absorption
Absorption coefficient
Absorptivity
Aerosol absorption
Aerosols
Airborne sensing
Aircraft
Albedo
Albedo (solar)
Arid regions
Arid zones
Atmospheric aerosols
Atmospheric heating
Clouds
Clouds (Meteorology)
Coefficients
Extinction
Geographical locations
Heating
Height
In situ measurement
Middle troposphere
Monsoon onset
Monsoons
Oceans
Precipitation
Profiles
Radiative transfer
Scattering
Spatial variations
Summer monsoon
Time
Troposphere
Vertical profiles
Wind
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Summary:Vertical structures of aerosol single scattering albedo (SSA), from near the surface through the free troposphere, have been estimated for the first time at distinct geographical locations over the Indian mainland and adjoining oceans, using in situ measurements of aerosol scattering and absorption coefficients aboard the Facility for Airborne Atmospheric Measurements (FAAM) BAe-146 aircraft during the South West Asian Aerosol Monsoon Interactions (SWAAMI) campaign from June to July 2016. These are used to examine the spatial variation of SSA profiles and also to characterize its transformation from just prior to the onset of Indian Summer Monsoon (June 2016) to its active phase (July 2016). Very strong aerosol absorption, with SSA values as low as 0.7, persisted in the lower altitudes (
ISSN:1680-7324
1680-7316
1680-7324
DOI:10.5194/acp-20-4031-2020