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

A long-duration balloon project at the tropical tropopause to advance our understanding of climate processes

Retweet on Twitter Strateole_2 Retweeted

ECMWF@ECMWF·

6 Feb

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/#/

Reply on Twitter 1225507731278323715 Retweet on Twitter 122550773127832371513 Like on Twitter 122550773127832371546 Twitter 1225507731278323715

Retweet on Twitter Strateole_2 Retweeted

Stratéole 2 USA @Strateole2USA·

17 Jan

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.

Reply on Twitter 1218252657405513728 Retweet on Twitter 12182526574055137285 Like on Twitter 12182526574055137289 Twitter 1218252657405513728

Strateole_2 @strateole_2·

14 Jan

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

Reply on Twitter 1217177416067682304 Retweet on Twitter 121717741606768230419 Like on Twitter 121717741606768230462 Twitter 1217177416067682304

Strateole_2 @strateole_2·

7 Dec

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

Reply on Twitter 1203424291783610368 Retweet on Twitter 120342429178361036810 Like on Twitter 120342429178361036819 Twitter 1203424291783610368

Strateole_2 @strateole_2·

6 Dec

And a second balloon the same night, with this time the @Scripps_Ocean ROC as well as @latmos_ipsl Boldair and Becool instruments. Thanks to @CNES team for this great #Strateole2 night!
@IPSL_outreach @NSF @meteofrance @INSU_CNRS @Strateole2USA

Reply on Twitter 1202766591924015104 Retweet on Twitter 12027665919240151045 Like on Twitter 120276659192401510417 Twitter 1202766591924015104

Strateole_2 @strateole_2·

5 Dec

After 1 week of disruption due to the presence of tropical storm Belna in the vicinity of Seychelles, #Strateole2 launches have resumed. TTL2 balloon carrying @LASPatCU Floats and @INSU_CNRS pico-SDLA instruments is in the air!
@CNES @latmos_ipsl @IPSL_outreach @NSF @meteofrance

Reply on Twitter 1202720068938928128 Retweet on Twitter 12027200689389281287 Like on Twitter 120272006893892812819 Twitter 1202720068938928128

Strateole_2 @strateole_2·

27 Nov

Thanks to the @CNES team for the very smooth launch of the 4th #Strateole2 balloon. @INSU_CNRS instruments measuring ozone/aerosols/water vapor will be switched on in the coming hours.
@IPSL_outreach @latmos_ipsl @meteofrance @NSF @LASPatCU @Strateole2USA @NOAA_ESRL

Reply on Twitter 1199829856328003587 Retweet on Twitter 11998298563280035877 Like on Twitter 119982985632800358715 Twitter 1199829856328003587

Strateole_2 @strateole_2·

27 Nov

4th #Strateole2 flight operations ongoing at Mahé, Seychelles. The balloon will fly close to the tropical tropopause to study troposphere/stratosphere coupling.
@IPSL_outreach @meteofrance @Strateole2USA @NSF

Reply on Twitter 1199808953351319552 Retweet on Twitter 11998089533513195523 Like on Twitter 11998089533513195529 Twitter 1199808953351319552

Strateole_2 @strateole_2·

24 Nov

What a premiere for the @LASPatCU team! Their RACHuTS instrument has performed last night 2 successful water vapor/aerosol/temperature profiles down to 1.5 km from the TTL3 #Strateole2 balloon.
@CNES @latmos_ipsl @IPSL_outreach @Strateole2USA @meteofrance @NOAA_ESRL

Reply on Twitter 1198558831627919361 Retweet on Twitter 11985588316279193615 Like on Twitter 119855883162791936113 Twitter 1198558831627919361

Presentation

Photos

Search

Follow us on Twitter

Videos