LIDAR RESEARCHER: Dr. Gary R. Swenson
RESEARCH ASSOCIATES: Dr. Xinzhao Chu, Dr. Alan Z. Liu, Dr. Chester
MAILING ADDRESS: University of Illinois, 1308 West Main Street,
Urbana, IL 61801
TELEPHONE NUMBER: 217-333-4232
FAX NUMBER: 217-333-4303
E-MAIL ADDRESS: firstname.lastname@example.org
WEB SITE: http://eosl.csl.uiuc.edu/
DATE: November 2, 2003
LIDAR LOCATION (CITY, COUNTRY, LAT., LONG.):
Maui, Hawaii, USA (20.7 ° N, 156.3 ° W)
SITE ELEVATION: 3.05 km
PARAMETER(S) OR CONSTITUENT(S) MEASURED: mesospheric Na layer,
temperature, wind (all three components), gravity waves, heat
flux, momentum flux, instability
RESEARCH OBJECTIVES: Middle atmosphere composition, structure,
MEASUREMENT TECHNIQUE: Narrowband Na resonance
fluorescence lidar for Doppler wind and temperature detection.
The lidar beam is coupled with a 3.67-m diameter telescope
through coude optics. The coupled lidar beam/telescope can
be steered to any directions in the sky with elevation above
5 ° .
MEASUREMENT RANGE: 75-115 km, 30-60 km
VERTICAL RESOLUTION: 24 meter
FREQ. OF MEASUREMENT (TYPICALLY): 6 nights per campaign, one
campaign per three months
MEASUREMENT TIMES (TYPICALLY): 90 seconds integration time for
each profile, nighttime observation only
LASER TYPE AND WAVELENGTH (s): Coherent 899-21 ring dye laser
pumped by a frequency-doubled Nd:YVO 4 laser (Coherent Verdi
V-5) is a continuous wave master oscillator working at 589.158
nm. The ring dye laser beam is then pulse-amplified by a pulsed
dye amplifier (Spectra-Physics Quanta-Ray PDA-1), which itself
is pumped by an injection-seeded frequency-doubled pulsed Nd:YAG
laser (Spectra-Physics Quanta-Ray PRO-250-50)
LASER ENERGY/PULSE: 40 mJ per pulse
PULSE REPETITION RATE: 50 Hz
RECEIVER SIZE AND CONFIGURATION: 3.67-meter diameter, astronomical
DETECTORS USED: EMI 9817-B PMT
SIGNAL PROCESSING: photon counting
ANALOG-To-DIGITAL CONVERTER: Phillips Scientific 300 MHz discriminator
and SR430 multichannel scaler
COMPUTER: Pentium III
PLATFORM (if applicable): Quick Basic
PUBLICATIONS (5 recent and/or significant):
Gardner, C. S., and W. Yang, Measurements of the dynamical cooling
rate associated with the vertical transport of heat by dissipating
gravity waves in the mesopause region at the Starfire Optical
Range, J. Geophys. Res., 103 (D14), 16,909-16,927,
Chu, X., A. Z. Liu, G. Papen, C. S. Gardner, M. Kelley, J. Drummond,
and R. Fugate, Lidar observations of elevated temperatures in
bright chemiluminescent meteor trails during the 1998 Leonid
shower, Geophys. Res. Lett., 27 , 1815-1818, 2000.
Gardner, C. S., Y. Zhao, and A. Z. Liu, Atmospheric stability
and gravity wave dissipation in the mesopause region, J.
Atmos. Sol.-Terr. Phys., 64 , 923-929, 2002.
Hu, X.,A. Z. Liu, C. S. Gardner, and G.
R. Swenson, Characteristics of quasi-monochromatic gravity
waves observed with Na lidar in the mesopause region at Starfire
Optical Range, NM, Geophys. Res. Lett. 29(24): 22 - 1-22 - 4,
Liu, A. Z., R. G. Roble, J. H. Hecht, M. F. Larson and C. S.
Gardner, Unstable layers in the mesopause region observed with
Na lidar during the TOMEX campaign, J. Geophys. Res., in
COMMENTS: This narrowband Na wind/temperature lidar was formerly
deployed at the Starfire Optical Range (SOR) in Albequerque,
NM and coupled with a 3.5-m diameter telescope through coude
optics for study of the middle atmosphere structure and dynamics.
With its steerable capability, it was used to track the persistent
meteor trails during the 1998 and 1998 Leonid meter showers at
SOR. This lidar was also deployed in the TOMEX rocket campaign
(sponsored by NASA) at SOR for investigating the instability
in the mesopause region. The Maui Na lidar will be used for the
TRIO rocket campaign in November 2004.