question

What modulates our Sun? The majority of science work on the principle that the Sun is self modulating and each solar cycle is a product of a random number generator. There are others that suspect the Sun is modulated by the planets with a special emphasis on Uranus & Neptune. Thanks to Carl Smith who has recently left us we have new knowledge that significantly adds to Jose, Landscheidt & Charvàtovà's work.

Geoff Sharp

Solar Wind Speed vs ENSO

Some say there is a relationship between Solar wind speed and the El Nino/La Nina cycle that has a large influence of our world weather patterns. There are a couple of problems with this assumption.

1. The solar wind speed is just one function of the solar wind. The solar wind density is also important along with the angle  (Bz) of the interplanetary magnetic field.

2. When comparing the 2 data sets there is little evidence of any correlation.

Below is a graph depicting the NINO3.4 SST anomalies (Reynolds OI v2) and the OMNI solar wind speed. The solar wind speed is inverted. Click on the pic for a full size view.

For those that might like to play around with the spreadsheet it can be found HERE.

NINO3.4 data HERE.

OMNI solar data HERE.

Comments

The medieval warm period was

The medieval warm period was global

Sorry if this is the wrong place to put this article but I've just got hold of it and thought it might be of interest to you. Basically the medieval warm period was indeed global according to new evidence which throws a spanner into the works of climate change zealots.    

http://syr.edu/news/articles/2012/ikaite-03-12.html

The scientists studied ikaite crystals from sediment cores drilled off the coast of Antarctica. The sediment layers were deposited over 2,000 years. The scientists were particularly interested in crystals found in layers deposited during the “Little Ice Age,” approximately 300 to 500 years ago, and during the “Medieval Warm Period,” approximately 500 to 1,000 years ago. Both climate events have been documented in Northern Europe, but studies have been inconclusive as to whether the conditions in Northern Europe extended to Antarctica.

Ikaite crystals incorporate ocean bottom water into their structure as they form. During cooling periods, when ice sheets are expanding, ocean bottom water accumulates heavy oxygen isotopes (oxygen 18). When glaciers melt, fresh water, enriched in light oxygen isotopes (oxygen 16), mixes with the bottom water. The scientists analyzed the ratio of the oxygen isotopes in the hydration water and in the calcium carbonate. They compared the results with climate conditions established in Northern Europe across a 2,000-year time frame. They found a direct correlation between the rise and fall of oxygen 18 in the crystals and the documented warming and cooling periods.

 

REPLY: Thanks for the article. I think there is no doubt of the global effects of a quiet Sun, although perhaps in the south we are not hit quite as hard because of the differences in topography and permanent ice in Antartica. But good to see another paper that places the IPCC type rhetoric of no MWP in its place.

Many thanks go to Carl's brother Dave for providing the Domain, Server and Software.