Vertical profile of aerosol single scattering albedo over west coast of India during W_ICARB |
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| Authors: | S Suresh Babu V Sreekanth Vijayakumar S Nair SK Satheesh K Krishna Moorthy |
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| Institution: | 1. Aerosol & Atmospheric Research Laboratory, Department of Physics, Sri Krishnadevaraya University, Anantapur 515 003, Andhra Pradesh, India;2. Space Physics Laboratory, Vikram Sarabhai Space Centre, Trivandrum 695 022, Kerala, India;1. Aerosol & Atmospheric Research Laboratory, Department of Physics, Sri Krishnadevaraya University, Anantapur 515 003, Andhra Pradesh, India;2. Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing 210044, Jiangsu Province, china;3. Space Physics Laboratory, Vikram Sarabhai Space Centre, Trivandrum 695 022, Kerala, India;4. Jawaharlal Nehru Technological University (JNTU), Anantapur, Andhra Pradesh, India;5. Department of Physics, V.R. College, Nellore, India |
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| Abstract: | Altitude profile of aerosol Single Scattering Albedo (SSA), derived from simultaneous in-situ airborne measurements of the coefficients of aerosol absorption and scattering off the west coast of India over the Arabian Sea (AS), during January 2009 is presented. While both the absorption and scattering coefficients decreased with altitude, their vertical structure differed significantly. Consequently, the derived SSA, with a surface value of 0.94, decreased with altitude, illustrating increasing relative dominance of aerosol absorption at higher altitudes. Altitude profile of SSA, when examined in conjunction with that of hemispheric backscatter fraction, revealed that the continental influence on the aerosol properties was higher at higher altitude, rather than the effect of marine environment. During an east–west transect across the peninsular India at an altitude of ～2500 m (free troposphere), it was found that the aerosol scattering coefficients remained nearly the same over both east and west coasts. |
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