The contamination variable in the CONFIGURATION archive control what data are affected by contamination.

In general, the configuration is split into profiles. Each profile contains a set of data affected by contamination. This is used to allow for different "pictures" of the effects of contamination.

In general, "contamination" refers to data that are valid, but not representative of site conditions. For example, data when the local winds are out of sector so the system is sampling a local pollution source. So, in most cases, contamination is a system wide condition that should affect all analysis products. This means, that usually it is either on or off, so the profile itself is rarely used except to disable it for measurements that are not affected by site conditions.

General Settings

/Profiles
Description

Contamination removal profile configuration

Keys

The keys immediately below this are profile names that are selected by the application. For example, aerosol is the commonly used default profile. However, any non-empty name is acceptable and can be used to create customized configurations that can be selected at run time. In general, profile names should be all lower case to preserve case insensitivity. In the paths listed <PROFILE> is used as a placeholder to real profile name (e.g. replace <PROFILE> with aerosol for the default profile).

/Profiles/<PROFILE>
Description

Data affected by contamination

Type

Sequence Selection

Structure

A sequence selection is a means of selecting a sequence of values in the data. The specification consists of selections for the various components of the sequence name.