RESEARCH ASSOCIATES: NASA Earth Science Enterprise (ESE)

MAILING ADDRESS: Mail Stop 474

TELEPHONE NUMBER: 757-864-1637

FAX NUMBER: 757-864-8809

E-MAIL ADDRESS: j.c.barnes@larc.nasa.gov

WEB SITE: http://aesd.larc.nasa.gov/GL/GLF.htm

DATE: September 17, 2001

LIDAR LOCATION (CITY, COUNTRY, LAT., LONG.): Flight Deployable Lidar Systems

SITE ELEVATION: Flight Systems; 20000 -70000 feet

PARAMETER(S) OR CONSTITUENT(S) MEASURED: Water Vapor, Ozone, Clouds, Carbon Dioxide & Aerosols

RESEARCH OBJECTIVES AND SPONSOR: Global monitoring of earths atmosphere. Eearth Science Enterprise

MEASUREMENT TECHNIQUE: DIAL and Backscatter Lidar

MEASUREMENT RANGE: 0 - 20 km

VERTICAL RESOLUTION:

FREQ. OF MEASUREMENT (TYPICALLY): Continuous

MEASUREMENT TIMES (TYPICALLY): 6 - 24 hours

LASER TYPE AND WAVELENGTH (s): Solid state lasers and frequency converters; 289nm, 300nm, 315nm, 355nm, 532nm, 718nm, 820nm, 1064nm, and 2000nm.

LASER ENERGY/PULSE: 35 - 500 mJ/pulse

PULSE REPETITION RATE: 10 - 30 Hz

RECEIVER SIZE AND CONFIGURATION: 10 - 36 inch Diameter; Casegrainian

DETECTORS USED: APD, PMTs

SIGNAL PROCESSING:

ANALOG-T0-DIGITAL CONVERTER:

COMPUTER:

PLATFORM (if applicable): ER-2, DC-8, WB-57

PUBLICATIONS (5 recent and/or significant):

1. Barnes, J. C., Edwards, W. C., Petway, L. B., and Antil, C. W., "Autonomous Laser Transmitter for LASE," 18th International Laser Radar Conference, Berlin, Germany, July 22-26, 1996.

2. Browell, E.; Ismail, S.; Barnes, N. P.; Barnes, J. C.; and Couch, R. H.,
"RPA Based Differential Absorption Lidar for Remote Monitoring of Atmospheric Water Vapor and Aerosol Distributions," NASA RPA Workshop, Williamsburg, VA, November 12-15, 1996.

3. Ewing, J. J. and Barnes, J. C., "Conceptual Design for Advanced Space
Based Lidar Source," Lidar Atmospheric Monitoring, Proceedings Europto Series, Vol. 3104, 111-122, June, 16 -18, 1997.

4. Barnes, J. C., "NASA's DIAL/Lidar Laser Technology Development
Program," Invited Seminar, NATO International School of Atomic and Molecular Spectroscopy, 13th Course: Ultrafast Dynamics of Quantum Systems: Physical Processes and Spectroscopic Techniques, Erice, Sicily, June 15-30, 1997.

5. Kaminski, A. A., Barnes, J. C. et. al., " Multiple-Stokes and Anti-Stokes Generation in Triclinic gamma-KIO3 and Hexagonal alpha-LiO3," Presentation at CLEO/QELS 2000, paper CWV6, May, 2000.