Scottish Sunspots

By Willis Eschenbach – Re-Blogged From WUWT

In a recent post, Anthony published Leif Svalgaard’s new paper showing 9,000 years of reconstructed solar activity.

https://wattsupwiththat.com/2018/10/27/svalgaard-paper-reconstruction-of-9000-years-of-solar-activity/embed/#?secret=2dyAExqkss

In the discussion, someone pointed out that the “Maunder Minimum”, a time of very low solar activity, corresponds with the coldest decade in a long-term reconstruction of summer temperatures in Scotland. Their temperature reconstruction is based on a group of pine tree-ring records spanning 800 years. Their graph is shown below:

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Solar Cycle Wave Frequency Linked to Jet Stream Changes

By Francis Tucker Manns, PhD – Re-Blogged From WUWT

It’s not the heat It’s the humidity 

Abstract: The sun controls climate change. Not industry. Not you. Not me. It is the sun.

Solar cycle 24, the weakest in 100 years, is stumbling to an end. The sunspot cycle averages about 11 (± 1.5) years. There may not be any sunspots this week. In the spring of 2017 the sunspot number was low or zero and Canada was plagued with spring floods from melting snow and heavy rainfall.

imageimage

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Approaching ‘Grand Solar Minimum’ Could Cause Global Cooling

By Anthony Watts – Re-Blogged From http://www.WattsUpWithThat.com

There’s a lot of evidence mounting that solar cycle 25 will usher in a new grand solar minimum. Since about October 2005, when the sun’s magnetic activity went into a sharp fall, solar activity has been markedly lower, with solar cycle 24 being the lowest in over 100 years.

Interplanetary magnetic field – Image from NOAA Space Weather Prediction Center

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Forecast for Solar Cycle 25

By James A. Marusek – Re-Blogged From http://www.WattsUpWithThat.com

I. Introduction

The sun is the natural source of heat and light for our planet. Without our sun, the earth would be a cold dead planet adrift in space. But the sun is not constant. It changes and these subtle changes affect the Earth’s climate and weather.

At the end of solar cycle 23, sunspot activity declined to a level not seen since the year 1913. [Comparing Yearly Mean Total Sunspot Numbers1]

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Lindzen, Soon and Spencer debunked?

By Andy May – Re-Blogged From http://www.WattsUpWithThat.com

On Bret Stephens facebook page, I [complimented] Mr. Stephens on what I thought was a very good column. I also noted that the eminent climate scientist Dr. Richard Lindzen had said similar things. To this a George Smith replied, in part, as follows:

“Few “skeptics” have been debunked as much as Lindzen and Spencer.”

Link to comment here.

If you follow the link you will see it is followed with a google search for “Lindzen debunked.” No support, no data, no peer reviewed references, just anything that says “Lindzen debunked.” This is “internet slime” at its worst. We see a lot of this sort of reprehensible behavior around climate science, often by people who have no scientific background at all. But, I am a scientist with 42 years’ experience and have been studying and writing about climate science for years, so I do want to address some of the scurrilous attacks found in this google search.

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Solar Slump: The Sun Was Blank for Two Weeks Straight

[Low sunspot numbers correlate very well with colder times. We have just had 7 higher than average sunspot cycles (11 years each) and temps have been warmer than “usual.” – Bob]

By Anthony Watts – Re-Blogged From http://www.WattsUpWithThat.com

Over the weekend, we reviewed the state of the solar data for March 2017. Now, there’s a two week straight lack of sunspots, the longest stretch since 2010.

A blank look to the sun on Monday, March 20, and it has now been blank for two weeks straight; image courtesy NASA/GSFC

Overview

The sun is currently blank with no visible sunspots and this is the 14th straight day with a blank look which is the longest such stretch since April 2010 according to spaceweather.com. Historically weak solar cycle 24 continues to transition away from its solar maximum phase and towards the next solar minimum. In April 2010 – the last time there was a two week stretch with no visible sunspots –  the sun was emerging from the last solar minimum which was historically long and deep.  There have already been 26 spotless days in 2017 (34% of the entire year) and this follows 32 spotless days last year which occurred primarily during the latter part of the year. The blank look to the sun will increase in frequency over the next couple of years leading up to the next solar minimum – probably to be reached in late 2019 or 2020.  By one measure, the current solar cycle is the third weakest since record keeping began in 1755 and it continues a weakening trend since solar cycle 21 peaked in 1980.  One of the impacts of low solar activity is the increase of cosmic rays that can penetrate into the Earth’s upper atmosphere and this has some important consequences.

Comparison of all solar cycles since 1755 in terms of accumulated sunspot number anomalies from the mean value at this stage of the solar cycle. Plot courtesy publication cited below, authors Frank Bosse and Fritz Vahrenholt

Comparison of all solar cycles since 1755 in terms of accumulated sunspot number anomalies from the mean value at this stage of the solar cycle. Plot courtesy publication cited below, authors Frank Bosse and Fritz Vahrenholt

Third weakest solar cycle since 1755
A recent publication has analyzed the current solar cycle and has found that when sunspot anomalies are compared to the mean for the number of months after cycle start, there have been only two weaker cycles since observations began in 1755.  Solar cycle 24 began in 2008 after a historically long and deep solar minimum which puts us more than eight years into the current cycle.  The plot (above) shows accumulated sunspot anomalies from the mean value after cycle start (97 months ago) and only solar cycles 5 and 6 had lower levels going all the way back to 1755.  The mean value is noted at zero and solar cycle 24 is running 3817 spots less than the mean.  The seven cycles preceded by solar cycle 24 had more sunspots than the mean.

Daily observations of the number of sunspots since 1 January 1900 according to Solar Influences Data Analysis Center (SIDC). The thin blue line indicates the daily sunspot number, while the dark blue line indicates the running annual average. Last day shown: 28 February 2017. (Graph courtesy climate4you.com)

Daily observations of the number of sunspots since 1 January 1900 according to Solar Influences Data Analysis Center (SIDC). The thin blue line indicates the daily sunspot number, while the dark blue line indicates the running annual average. Last day shown: 28 February 2017. (Graph courtesy climate4you.com)

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Britain Heading for Mini ICE AGE Next Year

By Joshua Nevett – Re-Blogged From Daily Star

A “TRIPLE whammy” of freak climate events causing temperatures to plummet will hit the country in 2017, it has been sensationally claimed.

Climate boffins believe the UK’s topsy-turvy climate is in for a chilly twist within the next few years as three major forms of climate change trigger “substantial cooling”.

lan-nina-forecast

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