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VOCALS: Multi-Network Composite Highest Resolution Upper Air Data


This data set is a composite of radiosondes collected from 5 sounding platforms during the Variability of the American MOnsoonS (VAMOS) Ocean-Cloud-Atmosphere-Land Study (VOCALS) 2008 project with data collected from 30 September 2008 through 1 December 2008. This project was conducted off and along the coast of northern Chile, South America in the eastern Pacific Ocean. This composite contains a total of 678 high resolution soundings.

The data includes 678 soundings with 91 10-sec resolution soundings from the lower site at Paposo, Chile, 215 1-sec soundings from R/V Ron Brown, 47 0.5 second dropsondes from the United Kingdom Facility for Airborne Atmospheric Measurements (FAAM) BAe-146 aircraft, 192 1-sec soundings from the GPS Advanced Upper_Air Sounding (GAUS) system located at Iquique, Chile, and 133 1-sec soundings from the R/V Jose Olaya GAUS system.

Users are strongly encouraged to contact FAAM BAe for guidance on using their dropsonde data. Please contact Grant Allen at grant dot allen at

All soundings are provided at the highest possible resolution (i.e. the 'native' resolution).

Data access

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Additional information

Data Quality final
  • 1.0 (2011-01-25)
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Related projects
Spatial Type point
Frequency criteria
Language English
GCMD Science Keywords Expand keywords
Related links

Temporal coverage

Begin datetime 2008-09-30 21:18:00
End datetime 2008-12-01 23:59:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 28.80, Minimum (South) Latitude: -30.00
Minimum (West) Longitude: -90.00, Maximum (East) Longitude: -70.00

Primary point of contact information

EOL Data Support <>

Additional contact information


UCAR/NCAR - Earth Observing Laboratory, Loehrer, S. 2011. VOCALS: Multi-Network Composite Highest Resolution Upper Air Data. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. Accessed 25 Jul 2024.

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