Scattering and absorption properties of near-surface aerosol over Gangetic–Himalayan region: the role of boundary-layer dynamics and long-range transport

Light scattering and absorption properties of atmospheric aerosols are of vital importance for evaluating their types, sources and radiative forcing. This is of particular interest over the Gangetic–Himalayan (GH) region due to uplift of aerosol from the plains to the Himalayan range, causing seriou...

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Bibliographic Details
Published in:Atmospheric chemistry and physics 2015-02, Vol.15 (3), p.1555-1572
Main Authors: Dumka, U. C, Kaskaoutis, D. G, Srivastava, M. K, Devara, P. C. S
Format: Article
Language:English
Subjects:
Analysis
Atmospheric physics
Atmospheric radiation
Optical properties
Radiation measurement
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Summary:Light scattering and absorption properties of atmospheric aerosols are of vital importance for evaluating their types, sources and radiative forcing. This is of particular interest over the Gangetic–Himalayan (GH) region due to uplift of aerosol from the plains to the Himalayan range, causing serious effects on atmospheric heating, glaciology and monsoon circulation. In this respect, the Ganges Valley Aerosol Experiment (GVAX) was initiated in Nainital from June 2011 to March 2012 with the aim of examining the aerosol properties, source regions, uplift mechanisms and aerosol–radiation–cloud interactions. The present study examines the temporal (diurnal, monthly, seasonal) evolution of scattering (σ
ISSN:1680-7324
1680-7316
1680-7324
DOI:10.5194/acp-15-1555-2015