ICLAS: International Coordination-group on Laser Atmospheric Studies
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LIDAR RESEARCHER: Prof. Kenneth Sassen

RESEARCH ASSOCIATES: Dr. Zhien Wang

MAILING ADDRESS: 135 S 1460 E (819 WBB), University of Utah, Salt lake City, UT 84112 USA

TELEPHONE NUMBER: 801-585-9492

FAX NUMBER: 801-585-3681

E-MAIL ADDRESS: ksassen@met.utah.edu

WEB SITE: http:// www.met.utah.edu/ksassen/fars.html

DATE: 16 August 2001

LIDAR LOCATION (CITY, COUNTRY, LAT., LONG.): Salt Lake City, US, 40°49'00"N, 111°49'38"W

SITE ELEVATION: 1.52 km MSL

PARAMETER(S) OR CONSTITUENT(S) MEASURED: Backscatter and linear depolarization

RESEARCH OBJECTIVES AND SPONSOR: Basic and applied (satellite validation) research of clouds (especially cirrus) and aerosols

MEASUREMENT TECHNIQUE: Elastic backscatter

MEASUREMENT RANGE: Normally up to 15 km MSL

VERTICAL RESOLUTION: 1.5, 3, 6 m

FREQ. OF MEASUREMENT (TYPICALLY): 1-3 hours

MEASUREMENT TIMES (TYPICALLY): variable

LASER TYPE AND WAVELENGTH (s): Nd:YAG 1.06 + 0.532 mm

LASER ENERGY/PULSE: ~0.4 J each color

PULSE REPETITION RATE: 10 Hz

RECEIVER SIZE AND CONFIGURATION: 35 cm diameter (two), Cassegrianian

DETECTORS USED: Dual PMT and Dual SAP

SIGNAL PROCESSING: Computer

ANALOG-T0-DIGITAL CONVERTER: 100 MHz Sonix boards

COMPUTER: PC

PLATFORM (if applicable): Facility for Atmospheric Remote Sensing, FARS

PUBLICATIONS (5 recent and/or significant):
Sassen, K., 1994: Advances in polarization diversity lidar for cloud remote sensing. Proc. IEEE, Remote Sensing Instruments for Environmental Research, 82, 1907-1914.

Sassen, K., D. O'C. Starr, G. G. Mace, M. R. Poellot, S. H. Melfi, W. L. Eberhard, J. D. Spinhirne, E. W. Eloranta, D. E. Hagen, and J. Hallett, 1995: The 5-6 December 1991 FIRE IFO II jet stream cirrus case study: Possible influences of volcanic aerosols. J. Atmos. Sci., 52, 97-123.

Sassen, K., G. G. Mace, J. Hallett, and M. R. Poellot, 1998: Corona-producing ice clouds: A case study of a cold cirrus layer. Appl. Opt., 37, 1477-1585

Sassen, K., and Y. Takano, 2000: Parry arc: A polarization lidar, ray tracing, and aircraft case study. Appl. Opt., 39, 6738-6745.

Sassen, K., J. M. Comstock, Z. Wang, and G. G. Mace, 2001: Cloud and aerosol research capabilities at FARS: The Facility for Atmospheric Remote Sensing. Bull. Amer. Meteor. Soc., 82, 1119-1138.

COMMENTS:
Mobile, fully scannable unit.
Colocated with ruby lidar, 95 GHz Doppler radar, and various visible, infrared, and microwave radiometers at FARS.

 
 

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