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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