Figure 2
From: Thunderstorm charge structures producing gigantic jets
Charge structure evolution for the Florida gigantic jet on 28 September 2010. VHF inferred charge structure for the (a) pre-pulse (b) initial pulse (c) final pulse (gigantic jet) and (d) post pulse times. The white circles denote upper positive charge and the black circles denote middle negative charge as inferred from the VHF data. The VHF data is shown for the times to the upper left (also in Table 2). The attempted bolt-from-the-blue is shown as open white circles16. The red vertical lines in (c) denote the edges of large spectrum width values shown in Fig. 1a, column 3. Distance scales are listed in km.
