Uranium record from a 3 m snow pit at Dome Argus, East Antarctica
Fig 6
Frequency plot of 15-day back trajectories at 500 m (A) and 1000 m (B) height levels above the ground representing the airflow trajectories at the middle and high altitudes respectively for daily simulation during the period 2000–2009. The Back trajectory data obtained using the NOAA (National Oceanic and Atmospheric Administration, USA) HYSPLIT model (at ftp://arlftp.arlhq.noaa.gov/pub/archives/reanalysis).