The fact that they are found mostly in a narrow band around the poles appears, at least to me, in light of other evidence, to indicate electrical causation. Consider the Birkeland Currents:
http://en.wikipedia.org/wiki/Birkeland_current
The above article makes another point: Birkeland currents appear to energize the poles of planets like Jupiter, and Saturn, and Venus. Creates "bright clouds" on (I think it was either Neptune or Uranus).
As you'll notice, the auropral patterns, heat and x-ray emissions appear in a very specific BANDING pattern around the pole.
Saturn:
http://antwrp.gsfc.nasa.gov/apod/ap011223.html
http://antwrp.gsfc.nasa.gov/apod/ap050222.html
http://photojournal.jpl.nasa.gov/catalog/PIA06436
http://photojournal.jpl.nasa.gov/catalog/PIA07008
http://photojournal.jpl.nasa.gov/catalog/PIA01269
Jupiter:
http://photojournal.jpl.nasa.gov/catalog/PIA03155
http://antwrp.gsfc.nasa.gov/apod/ap980123.html
http://photojournal.jpl.nasa.gov/catalog/PIA02883
http://photojournal.jpl.nasa.gov/catalog/PIA01254
http://photojournal.jpl.nasa.gov/catalog/PIA01257
http://antwrp.gsfc.nasa.gov/apod/ap030313.html
http://antwrp.gsfc.nasa.gov/apod/ap020301.html
http://photojournal.jpl.nasa.gov/catalog/PIA02880
Venus:
(Double-eyed vortex at both poles.)
http://thunderbolts.info/tpod/2006/arch06/060717doubleeye.htm
Earth:
http://antwrp.gsfc.nasa.gov/apod/ap011114.html
Moons:
http://photojournal.jpl.nasa.gov/catalog/PIA03450
http://photojournal.jpl.nasa.gov/catalog/PIA06432
(So-called "bright clouds" of Uranus gathered around the poles.)
As we can see, auroras form at the poles where we expect to see them due to Birkeland current interaction. As we can see from Saturn, this causes banding of heat and x-ray emission in specific latitudes, which is NOT unexpected.
Mars, however, has little to no atmosphere or magnetosphere. In my opinion this means that rather than interacting with atmosphere and amgnetosphere, the birkeland currents interact much more strongly with the surface of the planet itself, in exactly the banded pattern we see in the Saturnian and Jovian auroral patterns.
I would EXPECT to see similar patterns at the north pole. But their absence does not preclude the validity of this theory, in my opinion. It is quite possible that a large charged particle storm and/or discharge could have occurred at a tiem when the planet was preferentially tilted toward the south pole. Or should I say, the south pole was more on the receiving end of Birkeland bombardment, thus acquired far more charge than the north pole during said event. Though, I don't have a specific example of such event(s), lack of evidence doesn't preclude the possibility of a valid model. Just means more research is needed.
In any event, it's almost impossible to deny the Lichtenberg "look" to the individual spiders (radially branching arcs along arms and a lobed structure with continually branching figures), or the overall electrical look the the individual or grouped patterns in general.
Space/Science » in reply to re: active geyser vs passive spot
re: active geyser vs passive spot
The whole thread (86 posts)
- The Geysers Of Mars
- re: The Geysers Of Mars
- re: The Geysers Of Mars
- This version of the story...
- re: Image from Orbit
- Maybe they're dust devils
- Hugh Kieffer deserves the credit
- the "geyser" image
- re: the "geyser" image
- CO2-water clathrates to explain the Martian spiders.
- re: They're everywhere!
- I had a nightmare like that once
- To each his own
- re: To each his own
- active geyser vs passive spot
- re: active geyser vs passive spot
- re: active geyser vs passive spot
- Mars does not have a bipolar magnetosphere
- re: active geyser vs passive spot
- re: active geyser vs passive spot
- re: active geyser vs passive spot
- re: active geyser vs passive spot
- re: active geyser vs passive spot
- Improved html with image (hopefully)
- re: active geyser vs passive spot
- active geyser vs passive spot
- re: To each his own
- re: Unpredictable
- Meanwhile, high above the Red Planet...
