DocumentCode :
1978149
Title :
Raman lidar profiling of atmospheric water vapor
Author :
Goldsmith, J.E.M. ; Bisson, Scott E.
Author_Institution :
Sandia Nat. Labs., Livermore, CA, USA
fYear :
1995
fDate :
3-6 Apr 1995
Firstpage :
106
Lastpage :
108
Abstract :
The authors describe two Raman lidar systems that they are developing for the measurement of atmospheric humidity. One, which has been under development for several years, is used for their own studies at Sandia. The Sandia lidar system is housed in two mobile semitrailers, one trailer serving as a mobile laboratory and the other as a support vehicle providing a data acquisition/analysis area. The lidar uses an injection-seeded excimer laser to provide a beam with reduced divergence and spectral bandwidth, operated at 308 nm during both nighttime and daytime. Enhanced dynamic range, for daytime operation in particular, is provided by using photon counting in the narrow field-of-view channel, and analog to digital conversion in the wide field-of-view channel. The second Raman lidar system under development will have a permanent residence at the Department of Energy´s ARM (Atmospheric Radiation Measurement program) CART (Cloud and Radiation Testbed) site near Lament, Oklahoma. This system is based on a high-power 355-nm laser beam produced by a frequency-tripled Nd:YAG laser
Keywords :
Raman lasers; atmospheric humidity; atmospheric measuring apparatus; excimer lasers; humidity measurement; laser beam applications; meteorological instruments; optical radar; remote sensing; remote sensing by laser beam; 308 nm; 355 nm; Raman lidar; Sandia; UV ultraviolet lidar; atmosphere meteorology; frequency-tripled Nd:YAG laser; injection-seeded excimer laser; laser beam remote sensing; measurement technique; profiling; remote sensing; water vapor; water vapour humidity; Analog-digital conversion; Atmospheric measurements; Bandwidth; Data acquisition; Data analysis; Dynamic range; Humidity measurement; Laser beams; Laser radar; Vehicles;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Combined Optical-Microwave Earth and Atmosphere Sensing, 1995. Conference Proceedings., Second Topical Symposium on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-2402-1
Type :
conf
DOI :
10.1109/COMEAS.1995.472323
Filename :
472323
Link To Document :
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