Statistics 

Description

Defines the statistical function of the data in the variables. The default function is arithmetic mean (a mean value for the time intervall between start and end time). 
This metadata will usually vary for single variables and will very often be defined in the variable name section for each variable. E.g. when reporting both the arithmetic mean and the standard deviation for a parameter.

Raw/unprocessed data may have different data levels.

Possible values for statistics are:
arithmetic mean 
geometric mean
median
maximum
minimum
stddev
percentile:15.87
percentile:84.13
uncertainty
absolute error
precision
accuracy
expanded uncertainty 2sigma
expanded uncertainty 3sigma
68.27% lower confidence bound
68.27% upper confidence bound
detection limit

Syntax:
Statistics:                   <statistical function>

Example:
Statistics:                   arithmetic mean




This service has been funded or supported by the Norwegian Institute for Air Research (NILU), the EU research infrastructure ACTRIS (Aerosols, Clouds, and Trace gases Research InfraStructure), the European Monitoring and Evaluation Programme (EMEP).