Program for February 15^th, 2005 seminar series on Terrestrial Gamma Ray Flashes and Lightning Associated Phenomena

Addition Conference Room, Space Science Laboratory

University of California, Berkeley

7 Gauss Way, Berkeley

9.00am Global Lightning Observations (H. Christian)

9:30am Overview of Transient luminous events (D. Sentman)

10:00am Global TLE observations from ROCSAT-2 (S. Mende)

10:35am Observational evidence for Terrestrial Gamma-ray Bursts (D. Smith, R. L. Lopez)

11:00am Gamma Ray observation from balloons            (McCarthy part) (E. Bering, M. McCarthy)

11:25am Evidence for lightning association (U. Inan)

11:50am Measurements and implications of the relationship between lightning and TGFs (S. Cummer)

12:20pm Radio data on lightning strokes and coordinating the NLDN (M. Stanley)

1:10pm Runaway Breakdown in the Context of High-Altitude Discharges (R. Roussel-Dupré)

1:40pm Monte Carlo modelling of relativistic runaway electrons and terrestrial gamma-ray flashes (N. Lehtinen)

2.10pm Branching streamers as a source of thermal runaway electrons (N. Liu (presenter), V. Pasko and G. Moss)

2:30pm Recent observations of a gamma-ray event in a thundercloud (J. Dwyer)

2:50pm Comparison between the TGF events and our ELF network data (Y. Takahashi)

3:20pm Gamma ray flashes due to plasma processes in the atmosphere: Role of Whistler Wave (G. Milikh)

3:50pm - 5:00pm Panel Discussion on the critical issues raised by the presentation.

1) How do the presented material (data, modeling or theory) appear to constrain TGF mechanisms?

2) How do we proceed to test the relationship of TGF to (a) TLE-s, (b) lightning or (c) X-rays?

3) (Panelists: E. Williams, D. Sentman, J. Morrill, R. Lin)