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Sharpening a Cyclical Shovel

Guest Post by Willis Eschenbach There are a number of lovely folks in this world who know how to use a shovel, but who have never sharpened a shovel. I’m not one of them. I like to keep my tools sharp and to understand their oddities. So I periodically think up and run new tests…

CEEMD SOI and nino3.4

CEEMD and Sunspots

Guest Post by Willis Eschenbach I’ve been investigating the use of the “complete ensemble empirical mode decomposition” (CEEMD) analysis method, which I discussed in a previous post entitled Noise-Assisted Data Analysis. One of the big insights leading to modern signal analysis was the brilliant idea of Joseph Fourier. He realized that any given waveform can…

Amazon River Flow Data 1902 2014

Noise Assisted Data Analysis

Guest Post by Willis Eschenbach Once again, Dr. Curry’s “Week in Review-Science and Technology” doesn’t disappoint. I find the following: Evidence of a decadal solar signal in the Amazon River: 1903 to 2013 [link]  by Antico and Torres So I go to the link, and I find the abstract: Abstract It has been shown that…

lyapunov curves various

Is The Climate Chaotic?

Guest Post by Willis Eschenbach After I’d published my previous post on the Hurst Exponent entitled A Way To Calculate Effective N, I got an email from Dan Hughes which contained a most interesting idea. He thought that it would be productive to compare the Hurst analysis of the records of weather phenomena such as…

average fourier periodograms 199 long tide data

The Missing ~ 11-Year Signal

Guest Post by Willis Eschenbach Dr. Nir Shaviv and others strongly believe that there is an ~ 11-year solar signal visible in the sea level height data. I don’t think such a signal is visible. So I decided to look for it another way, one I’d not seen used before. One of the more sensitive…

shaviv Fig 1 detrend sea level enso

My Thanks, Apologies, and Reply to Dr. Nir Shaviv

Guest Post by Willis Eschenbach Dr. Nir Shaviv has kindly replied in the comments to my previous post. There, he says: Nir Shaviv  August 15, 2015 at 2:51 pm There is very little truth about any of the points raised by Eschenbach in this article. In particular, his analysis excludes the fact that the ocean…

tsi and sunspots

The New Sunspot Data … and Satellite Sea Levels

Guest Post by Willis Eschenbach [UPDATE: Upon reading Dr. Shaviv’s reply to this post, I have withdrawn any mention of “deceptive” from this post. This term was over the top, as it ascribed motive to the authors. I have replaced the term with “misleading”. This is more accurate since it describes the effect of the analysis…