Comparison of indigenously developed micro pulse polarization lidar with EZ lidar profiles |
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Authors: | R Maurya P K Dubey D K Shukla A Kumar B C Arya S L Jain |
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Institution: | (1) Environment Canada, Toronto, Canada;(2) WMO, Geneva, Switzerland; |
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Abstract: | A Micro Pulse Polarization LIDAR (MPPL) has been designed and developed for aerosol and cloud studies at National Physical
Laboratory, New Delhi, India (28° 35′ N, 77° 12′E) using a low-energy pico-second pulsed Nd:YAG laser at 532 nm and single
PMT detector. This has been used for detecting depolarization characteristics with back-scatter coefficient of atmospheric
aerosols and clouds. The back-scattered signals are detected at the emitted wavelength with co-polarization and cross-polarization
discrimination with a mirror on stepper motor for aerosols and cloud. Data are obtained by MPPL and are inter-compared with
a well-established commercial Leosphere made EZ LIDAR, industry standard at the same site and time, and the results are found
to be in good agreement. In the present communication the back-scattered coefficient, aerosols optical depth, depolarization
ratio etc. obtained using MPPL & EZ LIDAR are discussed in detail. |
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Keywords: | |
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