"2008-04-15 14:00:00.0" . "age_of_stratospheric_air"@en . "1" . . "SDN:P07::CFV8N1" . "false" . . "SDN:P07::CFV8N1" . . "1" . . "accepted"@en . . "" . "2008-04-15 14:00:00.0" . "SDN:P07::CFV8N1" . . "\"Age of stratospheric air\" means an estimate of the time since a parcel of stratospheric air was last in contact with the troposphere."@en .