Data Access - ASCII Files
RATPAC data can be accessed using the following methods:
The following two products are available:
RATPAC-ARecommended for studies of long-term large-scale climate change since it contains the most robust large-scale averages. RATPAC-A data files can be accessed through the ratpac-a subdirectory on the FTP site.
RATPAC-BRecommended for studies of long-term climate change at local or regional scales. RATPAC-B data files can be accessed through the ratpac-b subdirectory on the FTP site.
For documentation of the above data files, see the README file from the FTP site and station list.
For analyses that require data not included in RATPAC and are less sensitive to long-term biases, consider the Integrated Global Radiosonde Archive (IGRA).