S Veerabuthiran is working as a research fellow in Space Physics Laboratory, Vikram Sarabhai Space Centre, Trivandrum. His research involves the study of aerosols, dusts, and clouds in the lower atmosphere and temperature structure in the upper atmosphere.

In Part 1, we described the basic principle of the lidar (Light Detection and Ranging), the different scattering pro-cesses in the atmosphere and the Mie and Rayleigh lidars. In this part, we describe three other types of lidars: Raman lidar, differential absorption lidar (DIAL) and doppler lidar.

A lidar system consists of a pulsed laser which sends out pulses of laser light and a sensor that senses the scattered light from the different molecules and aerosols in the atmosphere. The characteristics of the scattered light are used to determine the nature and amount of the constituents.

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Address for Correspondence

S Veerabuthiran
Space Physics Laboratory
Vikram Sarabhai Space Centre
Trivandrum 695 022, India.
E-mail :vrs_74@rediffmail.com