Atmospheric trace gas data from the CONTRAIL flask air sampling

This data set contains trace gas mole fractions observed over the Eurasian continent by the flask air sampling of the CONTRAIL (Comprehensive Observation Network for TRace gases by AIrLiner) project. Air samples were collected by the Automatic air Sampling Equipment (ASE) and manually by the Manual air Sampling Equipment (MSE) on board commercial aircraft of Japan Airlines (JAL).