Weather Balloon Data
![NOAA weather balloon](https://webarchive.library.unt.edu/web/20170118233207im_/https://www.ncdc.noaa.gov/sites/default/files/styles/341px_width/public/NOAA-Image-Baloon.jpg)
NOAA weather balloon carrying atmospheric instruments
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Integrated Global Radiosonde Archive (IGRA)
Radiosonde and pilot balloon observations at over 1,500 globally distributed stations for standard, surface, tropopause, and significant levels -
Radiosonde Atmospheric Temperature Products for Assessing Climate (RATPAC)
Station and regional-mean time series of temperature anomalies that extend from 1958 to present derived from radiosonde observations taken at globally distributed stations