LIDAR RESEARCHER:
Dr. Alain M. DABAS
Dr. Christian WERNER
RESEARCH ASSOCIATES:
P. Flamant (CNRS), P. Drobinski (CNRS)
C. Werner (DLR), O. Reitebuch (DLR).
MAILING ADDRESS:
Alain DABAS
Météo-France
CNRM/GMEI/LISA
42 avenue Gustave Coriolis
31500 Toulouse, FRANCE
Christian WERNER
DLR-Institut of Atmospheric Physics
P.O.Box 1116
D-82230 Wessling
Germany
TELEPHONE NUMBER:
33-561 07 96 03 49-8153 282573
FAX NUMBER:
33-561 07 96 27 49 8153 281608
E-MAIL ADDRESS:
alain.dabas@meteo.fr Christian.Werner@dlr.de
WEB SITE:
http://lmdx.polytechnique.fr/~Lidar/ http://www.op.dlr.de/ipa/LIDAR/WIND/
DATE:
Operational since mid-1999.
LIDAR LOCATION :
Airborne Doppler Lidar.
SITE ELEVATION:
Not an issue.
PARAMETER(S) OR CONSTITUENT(S) MEASURED:
Wind, reflectivity
RESEARCH OBJECTIVES AND SPONSOR:
Subject: Atmospheric Dynamics.
Sponsor(s) :
IN FRANCE:
Centre National de la Recherche Scientifique (National Center
for Scientific Research), Centre National d'Etudes Spatiales (National
Center for Space Studies).
IN GERMANY:
Deutsches Zentrum für Luft- und Raumfahrt (Aerospace German
Center).
MEASUREMENT TECHNIQUE:
Coherent Doppler lidar operating at 10.6µm with a line-of-sight
transmitted downward through a bottom window. The LOS is inclined
30° from nadir and rotated around the vertical axis.
MEASUREMENT RANGE:
Measurement from the surface up to the flight altitude (max 11km)
VERTICAL RESOLUTION:
250m
FREQ. OF MEASUREMENT (TYPICALLY):
Irregular
MEASUREMENT TIMES (TYPICALLY):
3 hours
LASER TYPE AND WAVELENGTH (s):
Single longitudinal mode CO2 laser at 10.6µm.
LASER ENERGY/PULSE:
100 - 300 mJ
PULSE REPETITION RATE:
10 Hz
RECEIVER SIZE AND CONFIGURATION:
Diameter 20cm, Dall Kirkham, off axis.
DETECTORS USED:
2 MCT detectors
SIGNAL PROCESSING:
Retrieval of radial winds (level 1 data) and wind vectors (level
2 data).
ANALOG-T0-DIGITAL CONVERTER:
8 bits, 200 Msps
COMPUTER:
Apple MacIntosh G3
PLATFORM (if applicable):
Falcon 20
PUBLICATIONS (5 recent and/or significant):
1. Werner C., P.H. Flamant, O. Reitebuch, C. Loth, F. Köpp,
P. Delville, J. Streicher, P. Drobinski, S. Rahm, B. Romand, E.
Nagel, C. Boitel, M. Kleir, D. Bruneau, H. Herrmann, A. Dabas,
2001 : WIND Instrument. Optical Engineering, 40, 115-125, 2001.
2. Reitebuch O., Ch. Werner, I. Leike, P. Delville, P. H. Flamant,
A. Cress, D. Engelbart, 2001 : Experimental validation of wind
profiling performed by the airborne 10µm-Heterodyne Doppler
Lidar WIND. Journal of Atmospheric and Oceanic Technology, in
print.
COMMENTS:
The airborne Doppler lidar WIND has been developed in the frame
of a cooperation between France and Germany. In France, the project
was supported by CNRS (Laboratoire de Météorologie
Dynamique) and CNES. In Germany, it was supported by the Insitute
of Atmsopheric Physics of the Deutsches Zentrum für Luft-
und Raumfahr (DLR). The Principal Investigators are C. Werner
(DLR) and A. Dabas (Météo-France/CNRS)
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