Instruments and Observing Methods (IOM) Report No. 46
The WMO automatic digital barometer intercomparison
The first WMO Automatic Digital Barometer Intercomparison was held in De Bilt, the Netherlands at the Royal Netherlands Meteorological Institute from begin 1989 to July 1991. Thirty-three instruments of 14 different designs were entered by nine Members of WMO 1). This report contains a description of the procedures followed, the data acquisition, the data analysis, and a technical description of the principles of the instruments. Finally the results of the intercomparison are given in a general table and the result per instrument in detail. The report also includes recommendations for operational use. Also possible use of digital barometers as portable standards is discussed.