nonGTS radiosonde data for the whole year 2007 from the national weather services of Czech Republic, Germany, Slovakia, Switzerland.
Data have been collected by the Department of Meteorology and Geophysics, University of Vienna.
Data have been quality controlled at the respective institution, no data checks and quality control at the University of Vienna at all.
For a detailed description see file: jdc_data_description.pdf
in entry "jdc_obsdata_info_1"