TCCON > Sites > Reunion Island

Reunion Island

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SiteUser NameOperational?DescriptionDate
Reunion_Islandc_hermansNoNot Operational for few weeks2018-03-23

Reunion Island (Île de La Réunion)

TCCON Status: Provisional

Collaborators: Martine de Mazière (PI), Mahesh Kumar Sha, Christian Hermans

Technical support: Francis Scolas, Alexis Merlaud, Nicolas Kumps.

On-site support: Jean-Marc Metzger (Université de La Réunion).

The system is located on the university campus of the Université de La Réunion in St. Denis.  It is operated remotely from the Royal Belgian Institute for Space Aeronomy (BIRA-IASB) in Brussels, Belgium.

Latitude: 20°54.083' S
Longitude: 55°29.084' E
Elevation: 87 m


In-situ Greenhous Gas Measurements

Picarro CRD: In-situ CO2, CH4 and H2O (Instrument is operated by the LSCE -

This instrument is part of the Integrated Carbon Observation System (ICOS)

Snapshot of the last year:

To access all data products visit the ICOS-ATC at:
The Reunion Island station abbreviation is "STD" (St. Denis).

Other Atmospheric Measurements

The TCCON instrument is located in a lab of the Observatoire de Physique de l’Atmosphère de la Réunion.
Visit their website for an overview of the other atmospheric measurements performed at La Réunion:

Measurements at Maïdo Observatory

The Maïdo atmospheric observatory is located on Reunion Island at an altitude of 2200 m, at a distance of about 22 km from the St. Denis TCCON site.  A great number of different instruments are deployed at the Maïdo observatory, including a second FTIR spectrometer operated by the Royal Belgian Institute for Space Aeronomy.

A detailed description of the Maïdo station and its instruments can be found in this AMT paper:

Instruments currently deployed at Maïdo:

  • Rayleigh-Mie Lidar: Temperature 10 - 90 km (NDACC)
  • Raman Lidar: Water 2 - 17 km (NDACC)
  • DIAL Lidar: Ozone 6-17 km and 15-45 km (NDACC)
  • Doppler Lidar: Wind 5 - 50 km
  • Microwave radiometer: Water 15 - 75 km
  • Lightning sensor (WWLLN)
  • CPC 3775 Particle counter (GAW)
  • Chemical filters: Aerosol chemistry (GAW)
  • GPS receiver: Water total column (IGS)




The current solar tracker, installed in October 2013, with in the back the mast with the meteorological instruments.



The old solar tracker which was used from October 2011 until the end of September 2013.



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