Pub.9-Vol.A Legacy Page
Please find here the compiled Volume A archive, including a file for metadata. (Updated on 22 December 2021)
Important Note: OSCAR/Surface was launched officially on 2 May 2016, thereby replacing WMO No. 9, Volume A, Observing Stations and WMO Catalogue of Radiosondes.
All changes to surface-based observing stations ought now to be made as follows:
directly by OSCAR/Surface National Focal Points using OSCAR/Surface web interface,
through Machine to Machine interface between national database of WIGOS metadata and OSCAR/Surface,
through GAWSIS for Global Atmosphere Watch Stations,
through JCOMMOPS for marine meteorological and oceanographic observing stations,
through the WMO Weather Radar Database (WRD) for operational weather radars.
A "legacy" version of Volume A (see below) will continue to be published after 2 May 2016 until the end of 2018. However, the "legacy" format is not 100% compatible with the traditional format described below (see differences below). More detail about this transition can be found in the WWW Operational Newsletter.
Differences between OSCAR/Surface legacy file format and Volume A
- Guidance on WIGOS station identifiers
- Record layout of data flatfiles (Revised)
- Code tables of data flatfiles
- WMO Station IDs
Historical information about Volume A can be found here.