Acronym | meaning | calculation/unit | remarks |
WMOIND | WMO Indicator | ||
Name | Name of the station | ||
Lat | Latitude | deg, primes | wrong lat may be an error source |
Lon | Longitude | deg, primes | wrong lon may be an error source |
Hght | height of the station according to WMO List | m | if this value is different from the one in the institution's list, this is not an error source because we use the msl pressure as it was reported on GTS. Nevertheless wrong station heights are a frequent source for systematic errors. |
N | Number of messages received at IMGW between 1.1.1998 and 31.12.1998 | Varies from station to station due to different observation schedules, missing messages etc. | |
PGE | Percentage of gross errors | 100*n/N N: number of messages received n: values exceeding or |
Only stations are listed with an absolute number of cases >1. This number may be interpreted as the number of occurrence of error type IV ^{1)}. |
Me | Median of the deviation estimate | Only stations are plotted with an absolute median of 0.5 {hPa,K}. This value may be interpreted as the magnitude of a type type III ^{1)}. | |
IQR | Interquartile range | Measure of the variability of the deviation estimates. Gives a hint for errors type I and II ^{1)}. | |
Mea | Mean value of the deviation estimates | May also be interpreted as the magnitude of a type III ^{1)} but is sensitive to outliers. | |
SDV | Standard Deviation | Measure for the variability of the deviation estimates. Gives a hint for errors of type III ^{1)} but is sensitive to outliers. |