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humidograph.conf
The configuration file used by data.aggregate.humidograph. It is located in $DB/etc/$STATION/humidograph.$STATION.conf or in the default location $DB/etc/humidograph.conf. If the station specific file does not exist then the default one is used.
Format
Lines beginning with '#' are treated as comments. Each line consists of a key name optionally followed by a name separated by a comma from the value of that key.
The “name” can be used to define multiple independent humidograph systems. The output record name for the humidograph system is defined like “XH${name}h”, with the name defaulting to nothing if it is omitted. The default record is “XHh”. For example a specification for a second humidograph system might include “Dry2,S21”.
It is only required to define the names of the wet and dry nephs for each system, but the other parts can be overridden as needed.
The available keys are:
Wet
Set the name of the humidified neph, for example “S12”.
Dry
Set the name of the dry neph, for example “S11”.
TdWet
Set the specification to calculate the dewpoint of the humidified neph. Unless this is defined, the RH inside the neph is used as it was calculated by CPD(2), if it is defined then the temperature/RH variables set are used to calculate the dewpoint and that dewpoint is used with the internal temperature to calculate the RH.
The value consists of temperature and RH variables separated by ”;”. Each my optionally also specify the record that contains it by appending ”:RECORD” to the variable name. So a full specification might be “TdWet,T_V12:X1a;U_V12:X2a”.
TdDry
Set the specification to calculate the dewpoint of the dry neph. Unless this is defined, the RH inside the neph is used as it was calculated by CPD(2), if it is defined then the temperature/RH variables set are used to calculate the dewpoint and that dewpoint is used with the internal temperature to calculate the RH.
The value consists of temperature and RH variables separated by ”;”. Each my optionally also specify the record that contains it by appending ”:RECORD” to the variable name. So a full specification might be “TdWet,T_V12:X1a;U_V12:X2a”.