metadata

Standard CEF metadata entries

The metadata line is deliberately flexible - it's OK to use it for anything, as required. But we should standardise, where possible, on common entries.

Abbreviation	Value	Description
orig	=any	Original observation value with units (e.g. '33F', '29.78in')
orig.date	=any	Original observation date, when different from the date provided in the Year, Month, Day columns (e.g. '23 September 1902')
orig.time	=any	Original observation time (e.g. '14:30LST', 'noon')
PTC	=[Y,N,?]	Only for pressure: have the observations been corrected for temperature?
PGC	=[Y,N,?]	Only for pressure: have the observations been corrected for gravity?
atb	=any	Only for pressure: original temperature of the barometer with units (e.g. '55F')
Alias	=any	Alternative station name
Data policy	=any	Data licence, see here for some examples (e.g. 'WMO essential')
Calendar	=any	To be used if a calendar different from the Gregorian is used, in particular for monthly data (e.g. 'Julian')