1. GOS-Taiwan Ground Observation of Sprites in Taiwan H.T. Su, R.R. Hsu, A.B. Chen and J.L. Chern NCKU ISUAL Team, Physics Dept., NCKU Taiwan L.C. Lee NSPO, Taiwan

2. GOS-Taiwan Observation Area Coverage southern and eastern China, northern Luzon island, and any areas within a radius of 1000km Observation posts Ali Mtn Weather Station (2413m) Lulin Observatory (2868m) NCKU (50m) O-luan Pi (60m) (23.5 N; 120 E)

3. GOS-Taiwan Instrument CCD Watech 902H (auto gain) Neptune 100 (manual gain) 720x480 pixels 30 frames/sec Lens Nikon 300mm/f2.8 Nikon 50mm/f1.8 Sigma 20mm/f1.8 Recorder Sony DCR-PC5 DV FOV 13.8° x 18.5° (20mm) 5.4° x 7.4° (50mm) 0.9° x 1.2° (300mm)

4. GOS-Taiwan The parental thunderstorms-Guandong Two moderate storms in the eastern Guandong Providence, China, with sizes of 150km x 150km. By 20:00 UT, the S1 storm was reduced to 100km x 100km

5. GOS-Taiwan The Guandong sprites For the land sprites, carrot and C sprites account for 90% of the sprites observed.

6. GOS-Taiwan The parental storm-Taitung

7. GOS-Taiwan The Taiwan sprites

8. GOS-Taiwan The Taiwan sprites

9. GOS-Taiwan The Taiwan sprites

10. GOS-Taiwan The Taiwan sprites

11. GOS-Taiwan The Taiwan sprites The sea sprites have strange forms and have sizezs much smaller than the land sprites.

12. GOS-Taiwan The Philippines sprites (~600km) Typhoon Chebi (category 3), moonless night, ~600km?

13. GOS-Taiwan Space/ground coordinated observations of sprites

14. GOS-Taiwan Outlooks Year-round sprites campaign in Taiwan Are there any characteristic differences between land and sea sprites? Are there any characteristic differences between sprites observed at different season? Join MEIDEX mission for hand-on experience in space/ground coordinated observation of sprites