RESEARCH ASSOCIATES: Dr. J.A. Gelbwachs, Dr. R. Farley & Dr. J. E. Wessel

MAILING ADDRESS: The Aerospace Corp., M2/253, P. O. Box 92957, Los Angeles, CA 9009

TELEPHONE NUMBER: 310-336-1534

FAX NUMBER: 310-336-6801

E-MAIL ADDRESS: Steven.Beck@aero.org

WEB SITE: http:// None

DATE: 13 August, 2001

LIDAR LOCATION (CITY, COUNTRY, LAT., LONG.): Transportable

SITE ELEVATION: Variable

PARAMETER(S) OR CONSTITUENT(S) MEASURED: Water Vapor, Temperature, Clouds, Winds(under development)

RESEARCH OBJECTIVES AND SPONSOR: Calibration of met. instruments; USAF

MEASUREMENT TECHNIQUE: Raman

MEASUREMENT RANGE: H2O to 20 km; Temp. to 80 km; Clouds to 20 km.

VERTICAL RESOLUTION: Altitude dependent; between 100 m and 1 km.

FREQ. OF MEASUREMENT (TYPICALLY): Bimonthly for 1 week periods.

MEASUREMENT TIMES (TYPICALLY): Night

LASER TYPE AND WAVELENGTH (s): Nd;YAG; 355 nm

LASER ENERGY/PULSE: 400 mJ/pulse

PULSE REPETITION RATE: 30 Hz

RECEIVER SIZE AND CONFIGURATION: 0.75 m diameter Cassegrian telescope; scannable over 2p sr.

DETECTORS USED: PMTs

SIGNAL PROCESSING: Multichannel scalers for photon-counting; A/D board for analog detection

ANALOG-T0-DIGITAL CONVERTER: Gage and Adlink; 20 Msamples/sec; 12 bit

COMPUTER: 333 MHz PC

PLATFORM (if applicable):

PUBLICATIONS (5 recent and/or significant): "Raman lidar calibration for the DMSP SSM/T-2 microwave water vapor sensor," J.E. Wessel, S.M. Beck, Y.C. Chan, R.W. Farley, and J.A. Gelbwachs, IEEE Trans. Geoscience & Remote Sensing, Vol. 38, 141-154 (2000).

"Aerospace applications of optical sensing with lidar," S.M. Beck, J.A. Gelbwachs, D.A.Hickley, D.W. Warren, and J.E. Wessel, IEEE Aerospace Applications, Conf. Proc. Vol.2, 91-96(1996).