Strateole 2

Strateole-2 is a French-US project to study climate processes in the Tropical Tropopause Layer (TTL) and in the lower stratosphere. The project originality pertains to the use of CNES superpressure balloons, capable of drifting for several months between 18 and 20 km altitude.

Strateole-2 will release a total of nearly 50 long-duration balloons in three separate campaigns between 2019 and 2024. Balloons are released from Mahé international airport, Seychelles, with the local support of Seychelles Meteorological Authority.

First radiosounding. Credits: CNES (E. Renaudie)

A triumphant arrival. Credits: CNES (Ph. Cocquerez)

View from our launchpad. Credits: C. Teissèdre, LMD.

Last work on the Zephyr gondola. Credits: C. Teissèdre (LMD)

Zephyr on its way to the launchpad. Credits: C. Teissèdre (LMD).

Moving a Zephyr gondola. Credits: C. Teissèdre (LMD)

Sumit discussion in the integration tent. Credits: C. Teissèdre (LMD).

A Zephyr gondola ready to fly. Credits: C. Teissèdre (LMD)

Solar panel check. Credits: C. Teissèdre (LMD)

The campaign ground control. Credits: CNRS.

Mounting Zephyr's solar panels. Credits: CNRS, C. Teissèdre.

Tent installation on the launch pad. Crédits: CNRS, C. Teissèdre

Shower in Seychelles. Crédits: CNRS, J. Lenseigne

Strateole-2 working place. Crédits: CNES, Ph. Cocquerez

Solar panel structure. Crédits: CNRS, C. Teissèdre

Assembling the solar panel structure. Crédits: CNRS, C. Teissèdre

At work in the tent. Credits: CNRS, J. Lenseigne

First Strateole-2 team on site. Credits: CNES, Philippe Cocquerez

Strateole_2Follow

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Avatar esa aeolus mission@esa_aeolus·

11 Nov

The @strateole_2 campaign uses @CNES superpressure balloons drifting around the globe to study the climate processes in the Tropical Tropopause Layer and the lower stratosphere, helping #Aeolus validation activities along the way🎈🛰️. Read more👉 https://earth.esa.int/eogateway/news/around-the-world-in-eight-balloons-with-strateole-2

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Avatar esa aeolus mission@esa_aeolus·

3 Jun

.@strateole_2 was also a validation campaign for #Aeolus data. There were an impressive 231 collocations between the balloons and Aeolus🛰️🎈. Basic meteorological measurements provided by the balloons will now be used to validate Aeolus data. Read more👉 https://earth.esa.int/eogateway/news/around-the-world-in-eight-balloons-with-strateole-2

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Avatar ESA EarthObservation@ESA_EO·

27 May

Around the world in (a bit less then) 80 days!
Read more about @strateole_2's successful first campaign and its scientific aims: https://earth.esa.int/eogateway/news/around-the-world-in-eight-balloons-with-strateole-2 https://twitter.com/esa_aeolus/status/1265317590336929794

esa aeolus mission@esa_aeolus

What does it take to fly eight superpressure balloons around the world?🎈🌍🤔 From gargantuan diplomatic feats to wayward balloons and technical mishaps, read all about @strateole_2's successful first campaign and all the challenges it faced along the way👉https://earth.esa.int/eogateway/news/around-the-world-in-eight-balloons-with-strateole-2

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Avatar Strateole_2 @strateole_2·

26 May

#Strateole2 06_STR1 payloads shortly after their landing in Mali!

Walid Le Berbère@Walid_Leberbere

#Mopti
La semaine dernière un avion a parachuté ces deux appareils près du village de #Diguiciré à 40 km au nord-ouest de #Tenenkou, selon des sources locales des éléments de la Katiba Macina seraient venu l'incendié quelques heures après..... #Sahel

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Avatar Strateole_2 @strateole_2·

25 Feb 2020

Believe it or not: #Strateole2 "grey" balloon celebrated today Jules Verne's novel by completing a stratospheric round-the-world journey in exactly 80 days!
@IPSL_outreach @esa_aeolus @Scripps_Ocean @gps_hammer @CNES @meteofrance @Strateole2USA @LASPatCU @NSF @latmos_ipsl

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Avatar ECMWF@ECMWF·

6 Feb 2020

We started monitoring data from the #Strateole2 balloons. Upper balloons designed to study the equatorial upper troposphere&lower stratosphere providing wind and temperature. Thanks: @NSF @INSU_CNRS @Scripps_Ocean @salcandido @CNES @strateole_2
Details: https://webstr2.lmd.polytechnique.fr/#/

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Avatar Stratéole 2 USA @Strateole2USA·

17 Jan 2020

50 RACHuTS profiles and counting! These are first of its kind profiles of temperature #TSEN, aerosol #ROPC, and water vapor #FLASHB 2 km through the #TTL. Lots of great data ratcheting in. Even early evidence of sub-visible cirrus clouds.

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Avatar Strateole_2 @strateole_2·

14 Jan 2020

After 56 d + 19 hr of flight, a #Strateole2 balloon just performed the first circumnavigation around the Earth. @CNES long-duration balloons are truly unique to explore the lower stratosphere worldwide!
@INSU_CNRS @IPSL_outreach @Strateole2USA @meteofrance @latmos_ipsl @LASPatCU

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Avatar Strateole_2 @strateole_2·

7 Dec 2019

The 8th and last #Strateole2 long-duration balloon has been launched tonight from Seychelles. Thanks to all @CNES and science teams for this great campaign! Lots of achievements and lessons learned for next time.
@IPSL_outreach @latmos_ipsl @meteofrance @LASPatCU @Scripps_Ocean

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