The standard procedures for verification of surface variables are defined in the Manual on the Global Data-processing and Forecasting System: Annex IV to the WMO Technical Regulations (available from WMO library at https://library.wmo.int/opac/index.php?lvl=notice_display&id=12793#.Wo8mHa0pFrk12793), appendix 2.2.34.
ECMWF in the capacity of LC DNV collects and archive the scores. Data are exchanged in an ASCII-based format which is simple but flexible and is similar to the format used WMO exchange of domain-averaged upper-air scores.
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- The format of the reports of the station-based verification scores.
- The procedures for the exchange of (surface) verification reports.
- The remarks on the implementation of the surface verification reports at ECMWF.
- Answered Questions on the surface verification exchange
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