Visitor Submit by Willis Eschenbach
Buoyed by the equal elements of derision and popularity of my earlier submit, “CEEMD vs Joe Fourier“, I believed I’d check out a spot the place we all know there’s a photo voltaic impact.
How do I do know there’s a photo voltaic impact someplace? As a result of I’m a ham radio operator. Right here’s my license, my name signal is H44WE, “Lodge 44 Whisky Echo”.
I received my license within the Solomon Islands at age 41, a part of my dedication to life-long studying … plus I used to be dwelling on a really distant tropical island and that was one in all my few technique of communication …
And any ham will inform you that long-distance ham radio transmission is strongly affected by the solar’s exercise. Photo voltaic power impacts the ionosphere, the layer of the ambiance that displays radio waves again to the earth. So we all know that the solar impacts the very high of the ambiance … however what in regards to the decrease ranges?
To research this query, I believed I’d check out the photo voltaic results at totally different layers of the ambiance. The UAH MSU satellite tv for pc temperatures cowl 4 totally different ranges of the ambiance.
Determine 1. Areas of the ambiance lined by the UAH MSU satellite tv for pc temperature measurements. T—Temperature. LS—Decrease Stratosphere. TS—Tropopause. MT—Center Troposphere. LT—Decrease Troposphere.
I began on the highest altitude, the decrease stratosphere information, as a result of that’s the place I anticipated to search out the photo voltaic sign. And certainly, each CEEMD and Fourier analyses confirm that the solar impacts the temperature of the decrease stratosphere.
Determine 2a. CEEMD empirical mode containing any cycles round 11 years, for each the SILSO sunspot information and the UAH MSU decrease stratospheric temperature information.
Determine 2b. Fourier periodograms for each the SILSO sunspot information and the UAH MSU decrease stratospheric temperature information.
As you may see, each the CEEMD and the Fourier information clearly set up a relationship between variations in photo voltaic exercise and variations within the decrease stratospheric temperature. Each present peaks at round six and 11 yr cycles, and the CEEMD information exhibits the impact on temperature varies with the power of the photo voltaic sign and that the temperature variations lag the photo voltaic variations.
From there, I moved to the following decrease layer, the tropopause. That is the layer dividing the stratosphere from the troposphere.
Determine 3a. CEEMD empirical mode containing any cycles round 11 years, for each the SILSO sunspot information and the UAH MSU tropopause temperature information.
Determine 3b. Fourier periodograms for each the SILSO sunspot information and the UAH MSU tropopause temperature information.
Right here on the tropopause, whereas we nonetheless see the temperature peaks within the Fourier periodogram at six and eleven yr cycles, they’re much smaller than up within the decrease stratosphere. Plus there are extra cycles, at three and 4 years. And the CEEMD evaluation exhibits that temperature and photo voltaic exercise are way more loosely associated.
Now, there’s not a lot atmospheric change between the stratosphere and the troposphere. They expertise totally different winds and climate. Right here’s the identical evaluation as above, however this time for the center troposphere.
Determine 4a. CEEMD empirical mode containing any cycles round 11 years, for each the SILSO sunspot information and the UAH MSU center troposphere temperature information.
Determine 4b. Fourier periodograms for each the SILSO sunspot information and the UAH MSU center troposphere temperature information.
As soon as we’ve crossed the tropopause and are within the troposphere, the photo voltaic sign is principally gone. The CEEMD evaluation exhibits no relationship between the 2, and the Fourier periodogram exhibits the strongest temperature peak at 4 years. There’s no sign at both the six or the eleven yr intervals.
Lastly, right here’s the bottom stage of the UAH MSU information, the decrease troposphere.
Determine 4a. CEEMD empirical mode containing any cycles round 11 years, for each the SILSO sunspot information and the UAH MSU decrease troposphere temperature information.
Determine 4b. Fourier periodograms for each the SILSO sunspot information and the UAH MSU center troposphere temperature information.
Complete disconnect. Right here, there’s completely no relationship between the decrease tropospheric temperature information and photo voltaic exercise. There’s no signal that the variations within the solar are having any impact on the ambiance close to the floor.
CONCLUSIONS
First, this verifies that the 2 strategies I’m utilizing, CEEMD and Fourier evaluation, are each capable of reliably discover a photo voltaic sign in local weather information if one exists.
Second, this exhibits that the photo voltaic sign decreases as we transfer decrease within the ambiance, and by the point we attain the bottom stage of the troposphere, the photo voltaic sign has disappeared totally.
Additional affiant sayeth not.
Finest to everybody,
w.
