Original Research Published on 24 Oct 2014 A new circulation type classification based upon Lagrangian air trajectories in Atmospheric Science Alexandre M. RamosMichael SprengerHeini WernliAna M. Durán-QuesadaMaria N. LorenzoLuis Gimeno Frontiers in Earth Science doi 10.3389/feart.2014.00029 7,674 views 8 citations