Shits gonna hit the fan I suppose.
Any Theories regarding what to expect at the end of our current Precessional cycle? I’m looking at 2012-2014.
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One Response to Any Theories regarding what to expect at the end of our current Precessional cycle? I’m looking at 2012-2014.
We will be entering the Age of Aquarius, as refered to in the song. This is determined by what constellation corresponds with where the sun rises on the vernal equinox. (We are currently in the Age of Pisces) Who knew that rock musicians were so aware of astronomy?
Precession changes the time of year when the earth reaches it’s perihelion which is the point where the earth is closest to the sun during its orbit around the sun. Presently we reach perihelion on about Jan. 3, which is during northern hemisphere winter. This has an effect on climate and is likely to be increasing the solar warming during winter while reducing it for summer in the northern hemisphere. Eleven thousand years ago the reverse was true. There is no doubt we are in a long term climate cycle that we are just beginning to understand.
I doubt that the effect will be any more remarkable than in any other year. The cycle is so long (~22,000 years) that the rate of change is likely to insignificant. The one factor that is still not well understood is how these changes may create feedback systems in our climate that may not show up until many years after the changes. We will be moving the perihelion in the direction of having it during the northern fall season, and since it has been about 20,000 years since the earth has had that position we don’t have much of an idea how that will affect climate dynamics between the northern and southern hemisphere or if we will continue to see effects that may be delayed reactions to the change of precession over the last 5,500 years.
Check out the diagram at NOAA: Good question!!
http://umanitoba.ca/manitoban/2005-2006/0104/9315.precision.in.ancient.architecture.php
http://www.ngdc.noaa.gov/paleo/ctl/clisci100ka.html
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