Backscatter lidar observations of lower atmospheric aerosol during daytime over the tropical rural site Gadanki

Yellapragada Bhavani Kumar; Kohei Mizutani

doi:10.1117/12.577777

12 January 2005 Backscatter lidar observations of lower atmospheric aerosol during daytime over the tropical rural site Gadanki

Yellapragada Bhavani Kumar, Kohei Mizutani

Author Affiliations +

Proceedings Volume 5653, Lidar Remote Sensing for Industry and Environmental Monitoring V; (2005) https://doi.org/10.1117/12.577777
Event: Fourth International Asia-Pacific Environmental Remote Sensing Symposium 2004: Remote Sensing of the Atmosphere, Ocean, Environment, and Space, 2004, Honolulu, Hawai'i, United States

Abstract

An elastic backscattering lidar system that is capable of operating in daytime, which is considered to be first of its kind in India, has been developed at Gadanki (13.5° N, 79.2° E), a tropical rural site, to provide the vertical profile of the aerosol backscatter ratio at 532nm up to an altitude of 5-6 km (AGL). We made observations of the lower tropospheric aerosols during Dec 2002 - March 2003 with the system. The following observations are bought out from the preliminary analysis of the data. (a) A thick aerosol layer will always be present in the lowermost troposphere which top 1.5 - 2 km above the ground level. We consider that the layer correspond to the local mixing layer. (b) A thin layer of aerosol exists in the free troposphere in the altitude of 3 to 5 km. It is considered that these layers were on the way of long-range transport (c) A clear dust layer appeared at height of 2-3 km during the months Feb and March 2003. The lidar data has also used to retrieve the Convective Boundary Layer (CBL) height over the tropical site Gadanki.

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Yellapragada Bhavani Kumar and Kohei Mizutani "Backscatter lidar observations of lower atmospheric aerosol during daytime over the tropical rural site Gadanki", Proc. SPIE 5653, Lidar Remote Sensing for Industry and Environmental Monitoring V, (12 January 2005); https://doi.org/10.1117/12.577777

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KEYWORDS

Aerosols

LIDAR

Backscatter

Atmospheric particles

Atmospheric modeling

Mass attenuation coefficient

Signal attenuation

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