Figure 2
(a) Five-day back-trajectories for aerosols at 1 km and 4 km layer, both were observed by lidar at Kaohsiung. The 4 km layer (blue) can be trace to Taal region 3 days ago on Feb. 8 at 2000 m while the 1 km layer (red) is traced to northwestern China from upper air. (b) forward trajectories from Taal region starting Feb.8 (based on backward study in a) for all possible transport paths in the next 5 days. The results show a small part of aerosols may move to north in KS while the majority went to Southeast Asia. Figures are plotted using HYSPLIT Trajectory Model provided by ARL NOAA21,22.
