RESEARCH ASSOCIATES: Hannes Vogelmann

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: 2700 m a.s.l. (Schneefernerhaus on Mt. Zugspitze)

PARAMETER(S) OR CONSTITUENT(S) MEASURED: Tropospheric water vapour

RESEARCH OBJECTIVES AND SPONSOR: Investigation of water vapour in the free troposphere; sponsors: Bayerisches Wirtschaftsministerium, German Bundesministerium für Bildung, Forschung und Technologie

MEASUREMENT TECHNIQUE: Two-wavelength DIAL

MEASUREMENT RANGE: 3.0 to 13 km a.s.l.

VERTICAL RESOLUTION: dynamically set, 0.05 to 0.5 km

FREQ. OF MEASUREMENT (TYPICALLY): 1 measurement per hour during selected episodes

MEASUREMENT TIMES (TYPICALLY): 10 min

LASER TYPE AND WAVELENGTH (s): Oscillator: 2 Single-longitudinal-mode OPOs, sequentially amplified in a flashlamp-pumped 0.9-J Ti:Al2O3 amplifier; wavelengths will be chosen in the 810- or 940-nm bands of H2O.

LASER ENERGY/PULSE: 0.8 J (800 nm)

PULSE REPETITION RATE: 20 Hz

RECEIVER SIZE AND CONFIGURATION: 650 mm Newtonian telescope

DETECTORS USED: 3 APDs (Licel)

SIGNAL PROCESSING: 4 channels with 3 12 bit/20 MHz transient digitizers

ANALOG-T0-DIGITAL CONVERTER: 12 bit/20 MHz (Licel)

COMPUTER: PC

PLATFORM (if applicable): truck

PUBLICATIONS none

COMMENTS: System under development, is expected to be finished in winter 2002