LIDAR RESEARCHER:
Dr. Thomas Trickl
MAILING ADDRESS: Kreuzeckbahnstr. 19, D-82467
Garmisch-Partenkirchen, Germany
TELEPHONE NUMBER: (+49)-8821-183-209
FAX NUMBER: (+49)-8821-73573
E-MAIL ADDRESS: trickl@ifu.fhg.de
WEB SITE: http://www.ifu.fhg.de
DATE: August 14, 2001
LIDAR LOCATION (CITY, COUNTRY, LAT., LONG.): Garmisch-Partenkirchen,
Germany, 47.5 N, 11.0 E
SITE ELEVATION: 740 m a.s.l.
PARAMETER(S) OR CONSTITUENT(S) MEASURED: Tropospheric
ozone
RESEARCH OBJECTIVES AND SPONSOR: Investigation
of ozone in the entire troposphere and lower stratosphere with
emphasis on atmospheric transport; sponsors: Deutsche Bundesstiftung
Umwelt, European Union, German Bundesministerium für Bildung,
Forschung und Technologie
MEASUREMENT TECHNIQUE: Three-wavelength DIAL
MEASUREMENT RANGE: 0.2 to 15 km above ground
VERTICAL RESOLUTION: dynamically set, 0.05 to
0.5 km
FREQ. OF MEASUREMENT (TYPICALLY): 1 measurement
per hour during selected episodes
MEASUREMENT TIMES (TYPICALLY): 45 s
LASER TYPE AND WAVELENGTH (s): Narrow-band KrF
laser, Raman shifted in hydrogen and deuterium; 277 nm, 292 nm,
313 nm
LASER ENERGY/PULSE: 0.4 J
PULSE REPETITION RATE: 100 Hz
RECEIVER SIZE AND CONFIGURATION: 130 mm and 500
mm Newtonian tele-scopes
DETECTORS USED: 6 Hamamatsu H5783P-06 PMTs
SIGNAL PROCESSING: 2 channels with 700 MHz photon
counters (Optech), 6 channels with 12 bit/20 MHz transient digitizers
ANALOG-T0-DIGITAL CONVERTER: 12 bit/20 MHz (DSP
Technology)
COMPUTER: PC
PLATFORM (if applicable): Top floor of building
PUBLICATIONS (5 recent and/or significant):
H. Eisele, T. Trickl, Second Generation of the
IFU Stationary Tropospheric Ozone Lidar, in: Advances in Atmospheric
remote Sensing with Lidar, A. Ansmann et al., Eds., Springer (1997)
379-382
H. Eisele, H. E. Scheel, R. Sladkovic, T. Trickl,
High-Resolution Lidar Measurements of Stratosphere Troposphere
Exchange, J. Atmos. Sci. 56 (1999) 319-330
A. Stohl, T. Trickl, A textbook example of long-range
transport: Simultaneous observa-tion of ozone maxima of stratospheric
and North American origin in the free troposphere over Europe,
J. Geophys. Res. 104 (1999) 30445-30462
A. Stohl, N. Spichtinger-Rakowsky, P. Bonasoni,
H. Feldmann, M. Memmesheimer, H. E. Scheel, T. Trickl, S. Hübener,
W. Ringer, M. Mandl, The influence of stratospheric intrusions
on alpine ozone concentrations, Atmos. Environ. 34 (2000) 1323-1354
P. Seibert, H. Feldmann, B. Neininger, M. Bäumle,
T. Trickl, South foehn and ozone in the East Alps - case study
and climatological aspects, Atmos. Environ. 34 (2000) 1379-1394
COMMENTS: The accuracy of the ozone mixing
ratio is of the order of 3 ppb up to about 5 km and 5 ppb above
this; further technical improvements are planned to upgrade the
performance in the upper troposphere.
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