Volume A

Volume A contains a complete list of all the surface and upper-air stations in operation, which are used for synoptic purposes.  The contents are arranged in the order of the WMO Regions and in index number order within each Region.  The regional sections are followed by sections containing stations in the Antarctic and Ocean Weather Stations.

• Record layout of data flatfiles
• Code tables of data flatfiles
• Flatfile of data on Observing Stations     (15 March 2010 edition)

WMO Catalogue of Radiosondes and
Upper-air wind Systems

In addition to the information included in Volume A for upper-air stations, the catalogue provides information on the type of radiosonde, windfinding equipment, ground systems, radiation corrections applied to temperature observations and other local practices for the radiosondes and upper-air systems in use by Members.

• Excel file / .xls format 
  (July 2007 edition)