Re: Bi-directional leader formation?

["Malcolm Watts" <M.J.Watts-at-massey.ac.nz> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

On 22 Aug 00, at 17:29, Tesla list wrote:

> Original poster: "Greg Leyh" <lod-at-pacbell-dot-net> 
> 
> Original poster: "Malcolm Watts" <M.J.Watts-at-massey.ac.nz> 
> 
> >           I don't know whether it is an artifact of the camera 
> > scan or not but it *appears* to be going from top to ground. 
> > Trick of vision perhaps?
> > 
> > >
> > > http://lightning.pwr.eng.osaka-u.ac.jp/lrg/temp/plane.html
> 
> 
> One item that supports the bi-directional idea is the direction 
> of the forks in the dart leaders.
> All of the forking seems to be pointing /away/ from the plane.
> -- 

I noted that and tried to reconcile it with the apparent 
motion. I wonder if the presence of the plane pre-empted a 
cloud-cloud strike? Perhaps the apparent movement should be 
ignored.

Regards,
Malcolm