To: | Didier Juges <didier@cox.net> |
---|---|
Subject: | Re: [TowerTalk] Re: Static, Lightning, and protection |
From: | Jim Lux <jimlux@earthlink.net> |
Date: | Mon, 22 Mar 2004 10:04:34 -0800 |
List-post: | <mailto:towertalk@contesting.com> |
At 09:22 AM 3/22/2004 -0600, you wrote:
Good point. At higher altitude, the dielectric strength of air is less, so the voltage cannot build up as much before the strike starts, so the clouds cannot build as much energy as they can in Florida. probably other factors at work than air density. At 5000 ft, the density is about 90% of that at sea level and, to a first order, breakdown strength goes as density. In both cases, the thunderstorm extends many 10's of thousands of feet up, and the major charge collection is going to be occurring fairly high up. If I had to pick a single factor, I'd say that Florida is wetter and hotter than Colorado. In eastern Colorado, summer thunderstorms result from instability at the interface between the dry cool air coming down off the Rockies and the moist hot air coming up from the south. In Florida, you have a very flat area, with warm ocean on both sides, etc. _______________________________________________ See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA. _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo/towertalk |
<Prev in Thread] | Current Thread | [Next in Thread> |
---|---|---|
|
Previous by Date: | [TowerTalk] Hex Beam Figures, Kevin Adam |
---|---|
Next by Date: | Re: [TowerTalk] Hex Beam Figures, John Tait |
Previous by Thread: | [TowerTalk] Re: Static, Lightning, and protection, Didier Juges |
Next by Thread: | Re: [TowerTalk] Re: Static, Lightning, and protection, on4kj |
Indexes: | [Date] [Thread] [Top] [All Lists] |