• S M Deshpande

      Articles written in Journal of Earth System Science

    • Lidar observation of aerosol stratification in the lower troposphere over Pune during pre-monsoon season of 2006

      P Ernest Raj S K Saha S M Sonbawne S M Deshpande P C S Devara Y Jaya Rao K K Dani G Pandithurai

      More Details Abstract Fulltext PDF

      Lidar observations of aerosol vertical distributions in the lower troposphere along with observations of horizontal and vertical winds from collocated UHF radar (Wind Profiler) over a tropical Indian station, Pune during the pre-monsoon season (March–May) of 2006 as part of an ISRO-GBP national campaign (ICARB) have been examined. Lidar vertical profiles showed high aerosol concentrations in the surface layers and a subsequent gradual decrease with height. Results showed the presence of an elevated stratified aerosol layer around 2000–3500m height which persisted throughout the months of March and April. Observed strong vertical gradients in both horizontal and vertical winds in the lower troposphere seem to be a possible cause for the formation of elevated aerosol layers. Further, high daytime temperatures accompanied by dry conditions at the surface help to enhance the aerosol loading in the lower layers over this location.

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