posted on Feb, 27 2010 @ 11:21 AM
reply to post by Robin Marks
Robin, just a thought.
The sun has been in a particularly prolonged and deep solar minimum for the last couple of years, with fewer sunspots and solar storms erupting on its
surface. When the sun is in this state, it also sends less energy out in the soft X-ray and extreme ultraviolet parts of its spectrum. These
wavelengths of light have a significant impact on the thermosphere, where air molecules absorb their energy and the reradiate it in the form of
infrared energy.
Earth's thermosphere (the layer above 62 miles or 100 km above the Earth's surface) have responded quite dramatically to the effects of the 11-year
solar cycle, and in fact, the thermosphere has cooled by a factor of 10 since the last solar maximum in early 2002.
The cooling effect also has an effect on the orbits of satellites, because it changes the density of the atmosphere layer. For example, if the layer
heats up, it expands like a marshmallow in a microwave, as several scientists described it, and lower, denser parts of the atmosphere rise to higher
altitudes. Essentially, as the upper atmosphere expands, the lower atmosphere also expands to fill the space. When the thermosphere cools, the
opposite happens and the layers deflate and sink to lower altitudes.
Now I wonder. Since the thermosphere now is much cooler and the density is higher, could that not make the moon influence stronger?