Stations data utilizability based on the regional offices
of AIM-CHMI network in the Czech Republic - 1998


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
ČHMÚ-Brno
7 7 100% 7 100% 7 7 100% 7 100% 7 7 100% 7 100%
ČHMÚ-Hradec Králové
4 4 100% 4 100% 4 3 75% 3 75% 4 4 100% 4 100%
ČHMÚ-Ostrava
22 22 100% 22 100% 22 21 95% 21 95% 22 21 95% 22 100%
ČHMÚ-Plzeň
5 4 80% 5 100% 5 5 100% 5 100% 5 5 100% 5 100%
ČHMÚ-Praha
20 17 85% 19 95% 20 16 80% 18 90% 20 18 90% 19 95%
ČHMÚ-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)
ČHMÚ
 Czech Hydrometeorological Institute