The first launches of stratospheric balloons carried out in Baurú were performed under overseen of the Balloon Launch Group (Grupo de Lançamento de Balões or GLB) created in 1991 from a collaboration project between the Academy of Sciences from Russia and the University of Campinas (UNICAMP). These two institutions together organized a balloon launch campaign named "BrasSov 91" between October and November of 1991.

For this campaign, the Universidade Estadual Paulista "Julio de Mesquita Filho", counting on the available facilities in the Instituto de Pesquisas Meteorológicas (IPMet) located in the outskirts of the city of Baurú in the Sao Paulo state, Brasil, and the scientific support of the Instituto de Fisica Teórica (IFT), provided the means for launch 3 balloons and the successful recovery of all the scientific instruments. This early experience allowed to collect important data of cosmic rays flows and gamma rays, as well as of the ozone concentration and the earth's electric field terrestrial, but still more important revealed the need for a permanent balloon launch base for this kind of activities. That was the birth of the GLB.

View in the foreground of the launch area. In the background, can be seen IPMET's main building and the integration building
View of the integration building

Soon, in 1993 and thanks to the resources granted by the UNESP and Fundación de Amparo a la Investigación do Estado de São Paulo-FAPESP, was built the main infrastructure consisting in a operations building (image at right) and the launch area (image at left). Later, were added devices for the handling of the ballloons and positioning systems, as well as telemetry and telecommunications systems for they pursuit and recovery.

In 1995 the activities of the GLB started through an agreement established with the Service of Aeronomy of the French Centre National of Recherche Scientifique (CNRS), allowing the accomplishment of the Ozono'95 campaign. By 1997, along with the CNRS and with the participation of different international scientific organizations, a new campaign named SRS (Stratospheric Regular Soundings) was made consolidating the operational qualification of the GLB base in the intertropical region.

Since then, different projects on atmospheric research had been developed using balloons launched from there, mainly through agreements of cooperation with the French space agency (CNES) like the one performed in 2000 (SWWS 2000), 2001 (Pre Hibiscus), 2003 (Envisat Pre-Hibiscus) and 2004 (Hibiscus - Troccinox), all involving local flights as well as long duration ones.

During the international campaigns the GLB had the support of the local airport on issues related to aerial security, and a helicopter of the Brazilian Air Force to recover the scientific payloads as soon as posible.

In mid-2000s, and after the retirement of its head researcher Dr. Bui Van Ngan André, the GLB ceased to exist as an operating group within the structure of IPMET. The building that once served for the integration of payloads and material collection operations nowadays is home to the "Observatorio Astronómico didático Lionel José Andriatto".

The disarticulation of the GLB however did not mean the end of the activity with balloons there. Almost eight years after the last campaign, a new scientific initiative used again the weeded area adjacent to IPMET to make several flights of small-sized balloons. This launches were part of a study of the tropical area called TRO-PICO focused on analyzing the impact of tropical convection overshooting in the stratospheric moisture balance at both local and wide scales.

The initiative carried out by several research institutes and universities from France performed more than thirty balloon flights between 2012 and 2013.

Table of balloons launched from IPMET, Baurú

DateHourFlight DurationExperimentPayload landing place or cause of the failure
5/12/197115:10 utc4 h 44 mX-RAY DETECTORChacara, Minas Gerais, Brazil
6/2/197809:002 hTECHNOLOGICAL FLIGHTIn Arthur Nogueira - Sao Paulo
6/4/197809:154 hOLINDAIn Cambuí - Minas Gerais
4/22/1989 ---CHARGED PARTICLES DETECTOR--- No Data ---
11/??/1991 18 hCOSMIC RAYS, OZONE AND ELECTRIC FIELD DETECTORS--- No Data ---
11/8/199121:09 utc18 hMEASUREMENTS OF X-RAYS IN THE ATMOSPHERE, CHARGED PARTICLES AND NEUTRONS; PROTONS AND GAMMA RAYS; ULTRA HIGH ENERGY EXOTIC PARTICLES FLUX.--- No Data ---
11/10/1991 18 hdE/dX DETECTOR--- No Data ---
11/22/1995V---SAOZ (Systeme d'Analyse par Observation Zenithale)--- No Data ---
11/23/1995V---SAOZ (Systeme d'Analyse par Observation Zenithale)--- No Data ---
11/23/199718:002 h 3 mLABS (Laser Backscatter Sonde) / OPC (Optical Particle Counter).--- No Data ---
11/29/1997V---SAOZ (Systeme d'Analyse par Observation Zenithale) + SAOZ-BrO--- No Data ---
11/17/200022:2418 dSAMBA gondolaPayload lost.
11/19/200023:3322 dSAMBA + INMARSATPayload lost.
2/13/200121:38---SAOZ (Systeme d'Analyse par Observation Zenithale) + RUMBA30 kms from La Estrella, Salta, Argentina
2/15/200119:554 hSAOZ (Systeme d'Analyse par Observation Zenithale)Mirante do Paranapanema, Sao Paulo, Brazil
2/15/200122:2071 dSAMBA + INMARSATPayload lost.
2/21/200120:034 h 30 mSAOZ BrO (Systeme d'Analyse par Observation Zenithale) + µLIDAR + H2OCuiaba Paulista, Sao Paulo, Brazil
2/21/200121:55---SAMBA + RUMBA + LABS (Laser Backscatter Sonde)--- No Data ---
2/18/2003A---SAOZ + SAOZ-H2O + DIRAC + H2O/O3--- No Data ---
2/18/200322:00---SAOZ (Systeme d'Analyse par Observation Zenithale) + NARCISSE TEST15 km NE from Bauru where a team was sent for recovery and investigations. SAOZ payload seems to be only slightly damaged.
2/19/2003V3 h 30 mDIRAC CFCs/SLS + µLIDAR + Descartes CFCs/SLS + O3 SSS/H2O SAW30 kms E of Assis, Sao Paulo, Brazil
2/20/200323:0010 dSAOZ-H2O (Systeme d'Analyse par Observation Zenithale) + NARCISSE + RADIOMETERIn a small mountain area S of Townsville.
2/22/200322:00---INMARSAT EC-TRACK + RUMBA-H2O/O3 + RUMBA VORCORE-TURBULENCE10 km from Bauru, Sao Paulo, Brazil
2/23/200320:20---SAOZ + SAOZ/BrO + DIRAC + µLIDAR + O3 SSS + H2O SAW--- No Data ---
2/23/200323:008 dTechno flight new lightened MIR carrying the SAOZ gondola recovered after failure of the first MIR ENVISAT (launched febraury 19) + Inmarsat eC-trackPayload lost in the ocean.
1/31/200418:30 local2 h 10 mSAOZ (Systeme d'Analyse par Observation Zenithale) + SAOZ-BrO + CNR-ISACIn a sugar cane field in Paraguaçu Paulista located 100 km from launch site.
2/4/200421:46---SAOZ (Systeme d'Analyse par Observation Zenithale) + IR RADIOMETERSomewhere near the NW Australian coast.
2/5/200420:00---SAOZ + SAOZ-BrO + DIRAC80 km W from launch site.
2/6/200415:00~ 13 dRUMBA + TURBULENCEOn the Pacific Ocean (22.34º S - 149.65º W)
2/10/200400:45---BACKSCATTER SONDE--- No Data ---
2/12/200400:00---BACKSCATTER SONDE--- No Data ---
2/12/200420:3753 dRUMBA + TURBULENCE60 kms W of the town of Franklin, Queensland, Australia
2/12/200416:151 dRUMBA + O3/H2OOn Brazil territory (21.09º S - 50.97º W)
2/13/200413:00---NILU CUBE80 km N of Bauru, Sao Paulo, Brazil
2/13/200422:35---BACKSCATTER SONDE--- No Data ---
2/13/200418:20 local4 h 25 mDESCARTES + µLIDAR + µDIRAC + O3 SSS + H2O SAW + µSDLA90 km N of Bauru, Brazil
2/16/200400:00---BACKSCATTER SONDE--- No Data ---
2/16/200418:25 local~ 8 hDESCARTES + LABS + AIRS + µDIRAC + O3 SSS + H2O SAW + TDLASNear the Parana state border, Brazil
2/17/200400:00---BACKSCATTER SONDE--- No Data ---
2/19/200400:00---BACKSCATTER SONDE--- No Data ---
2/21/200400:00---BACKSCATTER SONDE--- No Data ---
2/21/200422:30---BACKSCATTER SONDE--- No Data ---
2/23/200422:30---BACKSCATTER SONDE--- No Data ---
2/24/200422:30---BACKSCATTER SONDE--- No Data ---
2/24/200418:00 local~ 4 hµDIRAC + µLIDAR + µSDLA + O3 SSS + H2O SAW + AIRS150 kms. SE of Bauru, Brazil
2/25/200415:07---NILU CUBE40 kms. S of Baurú.
2/26/200423:0039 dSAOZ (Systeme d'Analyse par Observation Zenithale) + IR RADIOMETER + LIGHTING/BLUE JET SENSOROn the Pacific Ocean (9.16º S - 210º W)
2/26/200420:00---DESCARTES + µDIRAC + LABS + O3 SSS + H2O SAW + TDLAS--- No Data ---
2/29/200416:0080 dTECHNOLOGICAL FLIGHTIn Madagascar Island
3/3/200400:3030 mµLIDARA few kilometers NE of Baurú
3/6/200415:4539 dOZONE AND WATER VAPOUR SENSORSIn Antarctica (74º S - 88º E)
3/7/200412:0056 dTURBULENCE SENSOROn the Indian Ocean south (56.4º S - 56.2º E)
3/9/200421:0027 dOZONE AND WATER VAPOUR SENSORSIn Antarctica (77º S - 127º W)
3/10/200421:359 dµLIDARIn the Western Pacific half way between New-Caledonia and Fiji
3/11/200421:0037 dTECHNOLOGICAL FLIGHTIn the Antarctic Sea (58º S - 151º W)
3/4/201223:35 utc---FLASH + COBALD--- No Data ---
3/9/201222:50 utc---Pico-SDLA (Spectromètre à Diode Laser Accordable)--- No Data ---
3/9/201223:40 utc---FLASH + COBALD--- No Data ---
3/11/201221:30 utc---MINI-SAOZ (Systeme d'Analyse par Observation Zenithale)--- No Data ---
3/11/201222:18 utc---Pico-SDLA (Spectromètre à Diode Laser Accordable) + LOAC--- No Data ---
3/13/201223:39 utc---FLASH + COBALD--- No Data ---
3/13/201222:03 utc---Pico-SDLA (Spectromètre à Diode Laser Accordable) + LOAC--- No Data ---
3/14/201221:59 utc---Pico-SDLA (Spectromètre à Diode Laser Accordable) CH4--- No Data ---
3/15/20121:27 utc---FLASH + COBALD--- No Data ---
3/15/2012 ---JETWATCH + FEMTOLIDAR--- No Data ---
3/16/20125:11 utc---FLASH + COBALD--- No Data ---
3/16/201221:30 utc---MINI-SAOZ (Systeme d'Analyse par Observation Zenithale)--- No Data ---
3/16/201223:40 utc---FLASH + COBALD--- No Data ---
11/21/201221:00 utc---Pico-SDLA (Spectromètre à Diode Laser Accordable)--- No Data ---
12/4/201220:45 utc---Pico-SDLA (Spectromètre à Diode Laser Accordable)--- No Data ---
12/14/2012 ---Pico-SDLA (Spectromètre à Diode Laser Accordable) H2O--- No Data ---
12/20/2012 ---Pico-SDLA (Spectromètre à Diode Laser Accordable) H2O--- No Data ---
1/18/2013 ---Pico-SDLA (Spectromètre à Diode Laser Accordable) CH4 + H2O--- No Data ---
1/25/2013 ---COBALD--- No Data ---
1/25/2013 ---FLASH + COBALD--- No Data ---
1/25/201322:41 utc---FLASH + COBALD--- No Data ---
1/26/2013 ---Pico-SDLA (Spectromètre à Diode Laser Accordable) H2O + LOAC--- No Data ---
1/28/201311:50 utc---Pico-SDLA (Spectromètre à Diode Laser Accordable) H2O--- No Data ---
1/29/2013 ---Pico-SDLA (Spectromètre à Diode Laser Accordable) CH4 (TEST)--- No Data ---
1/31/2013 ---Pico-SDLA (Spectromètre à Diode Laser Accordable) CH4 + H2O--- No Data ---
2/1/2013 ---FLASH + COBALD--- No Data ---
2/1/2013 ---Pico-SDLA (Spectromètre à Diode Laser Accordable) H2O--- No Data ---
2/4/2013 ---Pico-SDLA (Spectromètre à Diode Laser Accordable) CH4 + H2O--- No Data ---
2/5/2013 ---FLASH + COBALD--- No Data ---
2/6/2013 ---Pico-SDLA (Spectromètre à Diode Laser Accordable) H2O + LOAC--- No Data ---
2/7/2013 ---FLASH + COBALD--- No Data ---
2/9/2013 ---FLASH + COBALD--- No Data ---
2/10/2013 ---Pico-SDLA (Spectromètre à Diode Laser Accordable) CH4 + H2O--- No Data ---
2/11/2013 ---Pico-SDLA (Spectromètre à Diode Laser Accordable) CH4 + H2O--- No Data ---
2/11/2013 ---FLASH + COBALD + LOAC--- No Data ---