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Excimer-Raman dial probing of atmospheric ozone over an Urban station: First results

Devara, PCS and Raj, PE and Pandithurai, G and Dani, KK and Sonbawne, SM (2004) Excimer-Raman dial probing of atmospheric ozone over an Urban station: First results. In: 22nd Internation Laser Radar Conference (ILRC 2004), July 2004, Italy.

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This paper deals with an ultra-violet (UV) rare-gas halide XeCl Excimer-Raman laser-based ozone lidar system that has been developed at the Indian Institute of Tropical Meteorology (IHM), Pune (18°43′N, 73°51′E, 559 m amsl), India. The system essentially operates in the DIfferential-absorption-lidar (DIAL) mode with the laser emission at 308 nm (ON) wavelength as well as reference (OFF) wavelength of 353 nm generated by stimulated Raman shifting (SRS) the 308 nm radiation in hydrogen. The receiving system consists of a large diameter telescope tailored with a signal detection and data acquisition / processing system with 5 ns-10.5 ms multichannel sealer / averager. A brief description of the lidar system is given. The methodology followed for the retrieval of ozone vertical distributions from the lidar back-scattered signals obtained at ON and OFF wavelengths is discussed. The first results obtained and their comparison with in-situ measurements are presented. They are found to be in fair agreement within the experimental limitations

Item Type: Conference or Workshop Item (Other)
Additional Information: Copyright of this article belongs to European Space Agency
Uncontrolled Keywords: Atmospherics; Hydrogen; Landforms; Meteorology; Optical radar; Photochemical reactions; Radiometers; Remote sensing; Tropics, Differential absorption Lidar (DIAL); Excimer-Raman dial probing; Stimulated Raman shifting (SRS), Ozone
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 30 Mar 2015 05:41
Last Modified: 30 Mar 2015 05:41

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