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Study of atmospheric aerosols in a terrain-induced nocturnal boundary layer using bistatic lidar

Devara, PCS and Raj, PE (1991) Study of atmospheric aerosols in a terrain-induced nocturnal boundary layer using bistatic lidar. Atmospheric Environment - Part A General Topics, 25 A (3-4). pp. 655-660.

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Abstract

The aerosol vertical profiles (20-1000 m) obtained in the atmospheric boundary layer, on four nights, using a bistatic, CW Argon ion lidar system developed at the Indian Institute of Tropical Meteorology, Pune, India are presented. The profiles show a very steep negative gradient of aerosol concentration up to 150 m AGL and thereafter a smooth decrease with altitude. It appears that the aerosol profiles exhibit a stratified layer structure on certain days and show smooth altitudinal variation on other days. An attempt is made to explain the observed features on the basis of terrain effects at the lidar site and stratified turbulence (derived from pilot balloon wind observations) which prevailed on the days of the lidar observations. The aerosol vertical profiles (20-1000 m) obtained in the atmospheric boundary layer, on four nights, using a bistatic, CW Argon ion lidar system developed at the Indian Institute of Tropical Meterology, Pune, India are presented. The profiles show a very steep negative gradient of aerosol concentration up to 150 m AGL and thereafter a smooth decrease with altitude. It appears that the aerosol profiles exhibit a stratified layer structure on certain days and show smooth altitudinal variation on other days. An attempt is made to explain the observed features on the basis of terrain effects at the lidar site and stratified turbulence (derived from pilot balloon wind observations) which prevailed on the days of the lidar observations.

Item Type: Article
Additional Information: Copyright of this article belongs to Pergamon Press
Uncontrolled Keywords: Atmospheric Turbulence; Flow of Fluids--Boundary Layer; Laser Beams--Applications; Radar, Optical--Applications, Altitudinal Variations; Atmospheric Boundary Layer; Bistatic Lidar; Terrain Effects, Aerosols, aerosol; air analysis; boundary layer; conference paper; india, aerosol; bistatic lidar; lidar; nocturnal boundary layer; terrain effect
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 02 May 2015 04:43
Last Modified: 02 May 2015 04:43
URI: http://moeseprints.incois.gov.in/id/eprint/1134

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