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  1. Stratéole-2 stratospheric balloons and international cooperation

    Publishing date:

    December 11, 2019

    CNES is commited to the 96 potential overflew contries of the intertropical zone for the security of the Stratéole-2 balloons and compliance with air regulations.

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  2. Strateole-2 balloon flight campaign launched from Mahé in The Seychelles

    Publishing date:

    October 31, 2019

    Strateole-2 is an international Earth-observation programme using stratospheric superpressure balloons being led by CNES and a consortium of research laboratories attached to CNRS, the French national scientific research centre, including LMD and LATMOS at the Pierre-Simon Laplace Institute (see below). The programme’s goal is to study atmospheric dynamics in the intertropical zone. Three campaigns are planned from the autumn of 2019 to the spring of 2025 to acquire in-situ measurements and remote-sensing data from the balloons. The first balloon launch is scheduled from 1 November. The first two flights will be carrying ‘dummy’ gondolas without scientific instruments to see how the balloons and the onboard flight management system behave at the start of the flight. The window for the first four science flights runs from 17 to 30 November.

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  3. Les ballons stratosphériques Stratéole-2 et la coopération internationale

    Publishing date:

    December 11, 2019

    Avec les 96 pays de la zone intertropicale potentiellement survolés, le CNES s'engage à la sécurité des ballons Stratéole-2 et au respect des réglementations aériennes.

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  4. Lancement de la campagne ballons Stratéole-2 depuis Mahé aux Seychelles

    Publishing date:

    October 31, 2019

    Stratéole-2 est un programme d’observation par ballons pressurisés stratosphériques, en collaboration internationale, proposé par le CNES et un consortium de laboratoires du CNRS (dont le LMD et le LATMOS de l’Institut Pierre-Simon Laplace), qui a pour but d’étudier la dynamique de l’atmosphère dans la zone intertropicale. Il comprend trois campagnes de mesures, de l’automne 2019 au printemps 2025 qui permettront de recueillir des observations in situ, mais également en télédétection depuis les ballons. Le premier lâcher est prévu à partir du 1er novembre. Les deux premiers vols emporteront des nacelles « à blanc » sans instrumentation scientifique afin d’observer le comportement des ballons et du système de gestion embarqué, en début de vol. La fenêtre des quatre premiers lâchers scientifiques est programmée du 17 au 30 novembre.

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  5. The first Strateole-2 gondola ready to perform measurements in the tropical tropopause

    Publishing date:

    March 25, 2018

    The SAWfPHY, B-Bop and LOAC instruments loaded in the ZEPHYR gondola arrived for integration. These instruments will respectively perform measurements of water vapour, ozone and aerosols during the STRATEOLE-2 flights.

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  6. Organization

    Publishing date:

    July 5, 2018

    Strateole 2 is a joint French-U.S. project involving numerous laboratories and institutions.

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  7. Key milestones

    Publishing date:

    April 18, 2018

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  8. The SAWfPHY hygrometer integrated in the ZEPHYR gondola for STRATEOLE-2

    Publishing date:

    March 25, 2018

    On 18 January, Guyancourt's integration and testing platform began assembling the first scientific instrument in the gondola for the STRATEOLE-22 project. The SAWfPHY hygrometer is developed by the Dynamic Meteorology Laboratory.

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  9. Balloons

    Publishing date:

    April 18, 2018

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  10. Strateole-2: Pico-SDLA, a new story for a balloon instrument

    Publishing date:

    June 18, 2018

    Pico-SDLA is one of the instruments that has the highest number of flights under open stratospheric balloons. In January 2019, "to celebrate" the 20 years of this family of instruments, a new mission will begin: the adventure of long-term flights!

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  11. STRATEOLE-2: the LOAC particle counter joins the Zephyr gondola

    Publishing date:

    June 19, 2018

    In early February, the LOAC particle counter was delivered to the integration and test platform in Guyancourt. Its integration for the flying balloons Strateole-2 project took place without any issue!

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  12. Mission

    Publishing date:

    April 18, 2018

    The Strateole 2 project aims to observe the equatorial higher troposphere and lower stratosphere using superpressure balloons capable of staying aloft for several months.

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  13. ROC2, the GPS atmospheric sounder delivered to STRATEOLE-2

    Publishing date:

    March 25, 2018

    The first instrument on board the ZEPHYR gondola was delivered to the Dynamic Meteorology Laboratory in autumn 2017.

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  14. Contacts

    Publishing date:

    July 5, 2018

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  15. Strateole-2: Pico-SDLA, une nouvelle histoire pour un instrument ballon

    Publishing date:

    June 18, 2018

    Pico-SDLA est l’un des instruments ayant effectué le plus de vols sous ballons stratosphériques ouverts. En Janvier 2019, « pour fêter » les 20 ans de cette famille d’instruments, une nouvelle mission va débuter : l’aventure des vols de longue durée !

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  16. Contacts

    Publishing date:

    April 26, 2019

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  17. Organisation

    Publishing date:

    April 18, 2018

    STRATEOLE-2 est un projet coopératif franco-américain qui fait intervenir de nombreux laboratoires et institutions.

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  18. La première nacelle STRATEOLE-2 prête pour des mesures dans la tropopause tropicale

    Publishing date:

    March 25, 2018

    Les instruments SAWfPHY, B-Bop et LOAC embarqués dans la nacelle Zéphyr sont tous arrivés pour intégration. Ces instruments permettront respectivement d’effectuer des mesures de vapeur d’eau, d’ozone et d’aérosols lors des vols STRATEOLE-2.

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  19. Ballons

    Publishing date:

    April 18, 2018

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  20. Dates clés

    Publishing date:

    April 18, 2018

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