[ This is a glorious picture of the moon and you really ought to take a moment to click on it and look at the detail in the large size. ]
The Moon Changes Our Length Of Day, and Weather
Sometimes you run into interesting things in the oddest way. In the article about a cold Canada, a comment pointed me at an alternative interesting weather forecasting site. (h/t P.G. Sharrow) In looking at their technology page, I saw a write up of an article about the moon causing atmospheric tides, but based on the declination cycle. WIth periods of 27.3 days and 13.6 days.
But the mechanism was what caught my eye. Change of the earth’s length of day. And the assertion that this impacts weather and forecasting. In the first quake posting I’d done was a link to a paper by Ian Wilson that showed a solar influence on LOD causing the PDO to slop around.
So the pattern here is starting to shape up that the orbital mechanics of the solar system change our Length Of Day and our weather. Hmmmm….
The author does suggest that the weather models ought to be updated to include this; and that would be a great idea if we could only convince the modelers that the science wasn’t quite settled when they wrote the models.
And all that LOD changing would also induce crustal stresses and so could explain some of the earthquake patterns (my speculation). Speculating even further, if we have a mechanism that lets orbiting bodies stir the liquids and gasses on earth at different periods and change the LOD, might not the same mechanism let the planets act on the Sun? Changing the pressure on a fusion reaction ought to change the reaction rate, and tides lift our air by 30 meters (per the article), could not something similar happen to the sun via Jovian declination? And perhaps with the same mathematical analysis possible?
So that is where the speculation lead me. Now for the links.
The link to the paper in the article was a dead link, as were a couple of others turned up by Google. I did find what looks like an earlier pre-release working copy on a live link (downloaded and saved, sample pages made from the PDF as PNG below). Harvard had a live link, but to ‘Springerlink’ and wanting money…
So first, where did I run into this? At:
Third article down as I type, but will likely change over time. Titled “Declination studies reveal significant influences on climate in the formation of air tides.”
Parent Site Link:
Version that I could download here:
Found with a GOOGLE search using the key
“27.3 and 13.6 day atmospheric tide and lunar forcing on atmospheric circulation Guoqing”
but without the quotes.
Harvard Link with download link in the bottom:
The Springerlink page they send you to:
where the preview page looks like it got cleaned up a little from the earlier version in format, but they cut back on the resolution some. Click for a larger size:
And just because it clearly had been freely available and is now stuck behind a paywall, here are the “conclusions” pages from the earlier version. (Yes, I turned the PDF into individual PNG files for the pages… don’t ask… unless you want to know how to do it…) As usual, larger sized by clicking. Fair Warning: It’s a really large very high resolution page of about 1.5 MB each… Yeah, I had an ‘attitude moment’ ;-) I was tempted to make the postscript of it and post it typesetter ready… but decided that would be ‘over the top’…
I just figured that given all the grief they put in front of getting a look at the paper I ought to save y’all the trouble… (NEVER annoy the geek ;-) it’s a BAaaaad idea…)