The delicate balance of electrics between the tropics and the temperate zones
Posted by
Mike_Doran on 6/12/2009, 12:46 am
It's counter intuitive that a dam in Mexico has anything to do with why it rained here today on the left coast in the midst of what should be the dry season, but I will try to put something logical together.
The tropics, from an electrics standpoint, is a place where lightning occurs from thunderstorms, of course. These thunderstorms don't have the benefit of cold fronts like the temperate zones do, but they do have the benefit of warm, moist tropical air and a lot of direct sunlight. The temperate zones have cold fronts that really help produce conditions for lightning. As you get farther toward the poles, you have nothing but relative cold and no lightning. So in terms of a power source for displacement currents and electron precip, not sure what wins. But there is another area that is of interest--the fact that the atmosphere thins as you get toward the poles. And so while the tropics has warmer, and hence more conductive salt water for capacitive couplings, as you move north, the distance between the upper conductive atmosphere and the conductive oceans decreases. Thus, the electrical influence on clouds benefits as you move farther away from the tropics.
So when one area becomes relatively less conductive, due, say, to a dam altering local electrics, than couplings can relatively occur more to the temperate zone. I realize that JAC, again, is tracking a storm which he calls an EPAC storm for the first of the season, but it is the wrong place and very far out to sea and benefitting more from the strongly negative SOI index than from coastal lightning. Conditions continue to be very poor from an EMF standpoint. The solar winds are low but there has been no xray activity and the sun is blank.
The SOI index shows itself to be strongly negative yesterday, as I reported. The lastest numbers from the Long Paddock have not been reported, but I suspect that the numbers haven't changed much. And, again, meanwhile it rained here again on the left coast, highly unusual for this time of year and then, also, in the context of dry conditions here. |
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