Presentation of the Concordiasi project

Concordiasi is an international project, currently supported by the following agencies: Météo-France, CNES, CNRS/INSU, NSF, NCAR, University of Wyoming, Purdue University, University of Colorado, the Alfred Wegener Institute, the Met Office and ECMWF. Concordiasi also benefits from logistic or financial support of the operational polar agencies IPEV, PNRA, USAP and BAS, and from BSRN measurements at Concordia. Concordiasi is part of the THORPEX-IPY cluster within the International Polar Year effort.

Three field experiments are part of Concordiasi, two which have occurred during the autumn 2008 and 2009 (Austral spring) in Antarctica and a third one planned in Austral spring 2010.
Additional in-situ measurements include radiosoundings at the Concordia station at Dome C and at Dumont d'Urville in 2008, at Concordia in 2009 and high altitude balloons able to drop dropsondes, launched on demand under a parachute and measuring atmospheric parameters on their way down over Antarctica in 2010.Some of the balloons will carry experimental instruments measuring ozone and particles at flight level. Some will also be enhanced to carry GPS receivers in order to perform radio-occultation measurements.
Data can be accessed at the following address

Numerical simulations will use the field experiment data. The main goal is to provide validation data to improve the usage of polar-orbiting satellite data over Antarctica, in particular IASI radiances.
On board the European satellite MetOp-A launched in October 2006, IASI is a sounder instrument measuring the infrared spectrum with an improved accuracy for temperature and humidity sounding in the troposphere and stratosphere. The other areas of interest are the fine scale meteorological and climatic studies of the Antarctic plateau, the study of the influence of better polar area predictions over lower latitudes and over the ozone simulation, together with the monitoring of the polar vortex at the end of winter, thanks to additional stratospheric measurements. Working towards these goals will contribute to establish a sustainable observing system for climate over Antarctica, taking into account the potential of advanced sounders such as IASI.

Concordiasi "Final French" Workshop - Toulouse, France - 5 June 2015

Monday 8 June 2015 by domec
Presentations given during the workshop are posted on this page, as well as the group picture.

Latest Global Presentation on Concordiasi Results

Tuesday 31 July 2012 by domec
Concordiasi : A Project Dedicated to the Atmosphere over Antarctica by Florence Rabier, Steve Cohn, Philippe Cocquerez, Albert Hertzog, Linnea Avallone, Terry Deshler, Jennifer Haase, Terry Hock, Alexis Doerenbecher, Junhong Wang, Vincent (…)

Presentations - Concordiasi Workshop, Boulder Colorado USA, 21-22 October 2011

Sunday 20 November 2011 by domec
Presentations given during the workshop are posted on this page, as well as some pictures.

Information - Concordiasi Workshop, Boulder Colorado USA, 21-22 October 2011

Monday 10 October 2011 by domec
A Concordiasi workshop will be held at NCAR, Boulder, 21-22 October 2011. Location is: Foothills Lab Building #2 (FL2), Room 1001 (see Provisional Agenda follows. Friday 21 (…)

The Concordiasi dataset is now almost complete

Thursday 7 July 2011 by domec
The data is available on (user and password provided on request directly on the website). On this website, there are dropsonde data from NCAR balloon meteorogical measurements ("acar") from the 19 (…)

Short Report on 2010 Campaign in Antarctica

Friday 24 June 2011 by domec
A short report on the 2010 Campaign in Antarctica has been issued in June 2011. It is attached in PDF format, both in French and in English.

May 2011 - 20th ESA Symposium on European Rocket & Balloon Programmes and related research

Monday 30 May 2011 by domec
The 20th ESA Symposium on European Rocket & Balloon Programmes and related research was held in Hyères (France), from 22 to 26 May 2011. 5 talks were given on the Concordiasi field campaign in Antarctica : ** The Concordiasi campaign (…)

May 2011 - THORPEX European Regional Meeting

Monday 30 May 2011 by domec
A THORPEX European Regional Meeting was held in Karlsruhe (Germany) from 24 to 27 May 2011. A talk was given by Florence Rabier : The Concordiasi Project, Additional observations over Antarctica for NWP. F. Rabier, V. Guidard, S. Noton-Haurot, (…)

Field Campaign reaching its end

Wednesday 15 December 2010 by domec
In September and October 2010, 19 balloons were deployed from McMurdo, 6 with a scientific payload sounding the stratosphere, and 13 of the driftsonde type. From the 13 driftsondes, around 640 dropsondes were dropped over Antarctica and the (…)

More than 330 dropsondes released

Friday 22 October 2010 by domec
Since the beginning of the campaign, 331 dropsondes have been released, either for IASI (or IASI + AIRS) coincidence, or colocation with Concordia station, or over the Weddell Sea. Here follows the number of dropsondes released for each (…)