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Aerosols; lidar; extinction; circulation.

The study on the optical characteristics of aerosol is carried out using the dual polarization lidar observations from the tropical inland station Gadanki (13.5°N, 79.2°E) for the period of observation during the year 2010. The summer and monsoon observation days show high scattering ratio at the tropical tropopause layer (TTL) and at the lower stratosphere region. The depolarization ratio is also high at this altitude due to the transport of particulates to the TTL layer by the active convection prevailing at the period. The study reveals more dependable values of scattering ratio that are seasonal and range-dependent.

Reji K Dhaman¹ V Krishnakumar¹ V P Mahadevan Pillai¹ M Satyanarayana¹ K Raghunath¹

1. Department of Optoelectronics, University of Kerala, Kariavattom, Trivandrum 695 581, India

Published

February 2014

Early published

13 February 2014