Evolution study of a water vapor plume using a mobile CO2 DIAL system

Details Evolution study of a water vapor plume using a mobile CO2 DIAL system Evolution study of a water vapor plume using a mobile CO2 DIAL system

Feb 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002spie.4539..180b&link_type=abstract

Proc. SPIE Vol. 4539, p. 180-190, Remote Sensing of Clouds and the Atmosphere VI, Klaus Schaefer; Olga Lado-Bordowsky; Adolfo Co

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The DIAL system and the HYPACT model are two useful means to study plume evolution and dispersion. We developed a mobile DIAL system, mounted onto a truck. The DIAL is based on a single TEA CO2 laser source, able to switch between the 'on' and 'off' lines. This set-up allows rapid tuning of the two lines and keeps the misalignment within a range of 0.1 mrad, moderately below the beam divergence. The receiving system is a Newtonian telescope. All the instrumentation and the telescope are located inside the van. A large size scanning mirror, installed on the roof, sends the laser radiation into the atmosphere and, at the same time, it collects the backscattered light. To test all instrumentation, preliminary measurements have been completed to monitor a water vapor plume of a cement factory. The measurements are qualitatively compared against a dispersion plume model run initially from climatological fields.

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