LIDAR RESEARCHER:
Professor Bertrand CALPINI
RESEARCH ASSOCIATES:
Dr. Valentin SIMEONOV
MAILING ADDRESS:
Air Pollution Laboratory
Swiss Federal Institute of TechnologY - Lausanne,
CH - 1015 LAUSANNE, SWITZERLAND
TELEPHONE NUMBER:
++41 21 693 6185
FAX NUMBER:
++41 21 693 5145
E-MAIL ADDRESS:
Bertrand.calpini@epfl.ch
WEB SITE: http://dgrwww.epfl.ch/PAS/lidar/
DATE:
Augst 22, 2001
LIDAR LOCATION (CITY, COUNTRY, LAT., LONG.):
JUNGFRAUJOCH, SWITZERLAND
SITE ELEVATION:
3'500 M ASL
PARAMETER(S) OR CONSTITUENT(S) MEASURED:
OZONE-WATER VAPOR-AEROSOL-TEMPERATURE
RESEARCH OBJECTIVES AND SPONSOR:
NEW LIDAR TECHNLOLOGIES FOR PROBING THE ATMOSPHERE AND GUIDING
MODELING STUDIES
MEASUREMENT TECHNIQUE:
AEROSOL LIDAR, DIAL, RAMAN DIAL, ROTATIONAL RAMAN LIDAR
MEASUREMENT RANGE:
50 m AGL - 50 km AGL
VERTICAL RESOLUTION:
50 m - 2 km
FREQ. OF MEASUREMENT (TYPICALLY):
1 WEEK EVERY 2 WEEKS
MEASUREMENT TIMES (TYPICALLY):
DAY AND NIGHT TIME OPERATION
LASER TYPE AND WAVELENGTH (s):
NdYAG 1 micron, 532 nm, 355 nm, and 266 nm
LASER ENERGY/PULSE:
50 - 400 mJ7pulse
PULSE REPETITION RATE:
Up to 100 Hz
RECEIVER SIZE AND CONFIGURATION:
Off axis telescopes: 1 x newtonian 20 cm, 2 x Cassegrain 76 cm
DETECTORS USED:
Photomultipliers and avalanche photodiodes
SIGNAL PROCESSING:
Labview, Mathlab
ANALOG-T0-DIGITAL CONVERTER:
12 bit - 20 MHz digital converter
COMPUTER:
PC based
PLATFORM (if applicable):
PUBLICATIONS (5 recent and/or significant):
A combined determination of wind velocities and ozone concentrations
for a first measurement of ozone fluxes with a DIAL instrument
during the Medcaphot Trace campaign (L. Fiorani, B. Calpini, L.
Jaquet, H. van den Bergh, E. Durieux), Atmospheric Environment,
Vol.32, No 12, pp 2151-2159, 1998.
Tropospheric air pollution monitoring: Lidar (L. Schoulepnikoff,
H. van den Bergh, V. Mitev, B. Calpini) review article, Encyclopedia
of Environmental Analysis and Remediation, John Wiley & Sons,
Ed. Robert A. Meyers, Vol. 8, pp 4873-4909, 1998.
Raman Frequency Shifting in CH4 :H2 :Ar mixture pumped by the
4th Harmonic of Nd :YAG (V. Simeonov, V. Mitev, H. van den Bergh,
and B. Calpini) Applied Optics, Vol 37, No 30, pp 7112-7115, 1998.
The influence of the photomultiplier tube spatial uniformity on
lidar signals
(V. Simeonov, G. Larchevêque, P. Quaglia, H. van den Bergh,
and B. Calpini) Applied Optics, Vol.38, pp. 5186-5190, 1999.
Effect of sea breeze on air pollution in the Greater Athens Area.
Part I: Numerical simulations and field observations (A. Clappier,
A. Martilli, P. Grossi, P. Thunis, F. Pasi, B.C. Krueger, B. Calpini,
G. Graziani and H. van den Bergh) Journal of Appl. Meteor., Vol.
39, N°4, 546-562, 2000
Total VOC Reactivity in the Planetary Boundary Layer, Part One:
Estimation by a Pump and Probe OH Experiment (Francois Jeanneret,
Frank Kirchner, Alain Clappier, Hubert van den Bergh, and Bertrand
Calpini), J. Geophys. Res., Vol. 106, pp. 3083-3094, 2001
Raman-DIAL O3 and H2O measurements in the planetary boundary layer
: (B. Lazzarotto, M. Frioud, G. Larchevêque, V. Mitev, P.
Quaglia, V. Simeonov, A. Thompson, H. van den Bergh, and B. Calpini)
Applied optics, Vol. 40, 18, pp.2985-2997, 2001
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