OPAR

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CLIVAR IOP Meeting June 2009

• OPAR
• Observatory of Atmospheric Physics of Reunion
  Island
• Robert Delmas (OPAR Director)

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OPAR Objectives

• Permanent station for long term atmospheric
  observations dynamic and chemistry of the
  troposphere and the statosphere in the context of
  climate change in the southern hemisphere
  (Température, ozone, UV Radiation, H2O, GHG,
  aerosols)
• Provide data for international research
  monitoring networks
• Provide data for scientific research (LACy and
  partners)
• Provide data for satellite validation (ENVISAT,
  METOP (IASI, GOME2), MEGHATROPIQUES, ADM-AEOLUS

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OPAR OPERATIONAL INSTRUMENTATION
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OPAR operational instrumentation
Stratospheric ozone DIAL
Rayleigh-Raman, T Aerosol, H2O Lidar
Cimel Photometer aerosol
Radiosoundings
SAOZ Spectrometer O3, NO2
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FTIR
Measurements of low vertical resolution profiles
of species including CO, CH4, ozone, and columns
of trace gases ULB (M. Carleer) IASB (M. De
Mazière) Campaigns in Sept-Oct 2002 and July
2004 A new campaign for the validation of IASI
was conducted from May to December 2007 The
instrument is now permanently intalled since end
of may 2009
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Reunion Island in networks for the observation of
Atmosphere
OPAR provides presently data for international
atmospheric observation networks that are NDACC,
SHADOZ, AERONET. Le location of Reunion in the
southern hemisphere in the Indian Ocean makes
OPAR a unique site for both stratospheric and
tropospheric observations. After its installation
at the Maïdo observatory (2010) OPAR aims at
becoming a global station of the GAW Network
(Global Atmospheric Watch, WMO)
GAW
AERONET
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• COLLABORATIONS
• French Laboratories
• SA  Service dAéronomie , Institut Pierre Simon
  Laplace, IPSL, Paris
• LSCE  Laboratoire des Sciences du Climat et de
  lEnvironnement, IPSL, Saclay, Gif Sur Yvette
• LA  Laboratoire dAérologie, Observatoire Midi
  Pyrénées, Toulouse 
• LOA Laboratoire dOptique Atmosphérique, Lille
• LaMP Laboratoire de Météorologie Physique,
  Clermont
• Foreign Laboratories or institutes 
• -          Institut dAéronomie Spatiale de
  Belgique, Bruxelles
• - Chimie Quantique et Photophysique,
  Université Libre de Bruxelles
• -          CISRO, Melbourne, Australie
• University of Kwazulu Natal (South
  Africa)

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Number of OPAR measurements per year from 1992 to
2007.
The Photometer AERONET has functioned
continuously since 2005
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Satellite validation
Max-DOAS BRO Measurements at Réunion for
Schiamachy validation
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Stratospheric temperature climatology from lidar
measurements (12 year average)
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Tropospheric ozone climatology from lidar and
radio sounding measurements
1992 2006
RDF Climatology of positive ozone des anomalies
Jan Dec
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OPAR NEW INSTRUMENTS
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UHF radar wind profiler
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Mobile aerosol lidar LEOSPHERE ALS 350
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Doppler wind lidar (wind profile 5-50 km)
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OPAR Altitude station at Maïdo peak in 2011
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The future Maïdo Observatory to be open in 2011
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OPAR WEBSITE
French/English versions Description of the
instrumentation, Access to the OPAR database via
login/password
http//opar.univ-reunion.fr