Stations data utilizability based on the regional offices
of AIM-CHMI network in the Czech Republic - 1999



CHMI regional
offices
SO2 NOx SPM / PM10
A Criterion 1 Criterion 2 A Criterion 1 Criterion 2 A Criterion 1 Criterion 2
N1 V1 N2 V2 N1 V1 N2 V2 N1 V1 N2 V2
ÈHMÚ-Brno 7 7 100% 7 100% 7 7 100% 7 100% 7 7 100% 7 100%
ÈHMÚ-Hradec Králové 4 3 75% 4 100% 4 4 100% 4 100% 4 3 75% 4 100%
ÈHMÚ-Ostrava 23 21 91% 22 95% 23 20 86% 22 95% 23 21 91% 22 95%
ÈHMÚ-Plzeò 5 5 100% 5 100% 5 5 100% 5 100% 5 5 100% 5 100%
ÈHMÚ-Praha 23 20 86% 22 95% 23 20 86% 22 95% 23 19 82% 21 91%
ÈHMÚ-Ústí nad Labem 38 35 92% 35 92% 38 35 92% 35 92% 38 35 92% 35 92%

Legends
Criterion 1 NSV=20 days and MP=66%
Criterion 2 NSV=40 days and MP=50%
NSV longest continuos failure in year
MP minimum percentage of measurements per year
A number of active measurement sites
Nx number of stations meeting criterion x
Vx data capture, criterion x, in % (i.e. Nx/A*100)
ÈHMÚ Czech Hydrometeorological Institute