Guest post by David Archibald Climate has real world consequences, and those operating in fields that will be affected by changing climate bring a different perspective to the problem of…
Tag: Solar cycle
Update on Solar Cycle 24 – Hathaway's latest predictions show smallest sunspot cycle since 1906
The sun is currently showing two significant spots, though activity is generally quiet. Current SSN is 30, and Sunspot AR1667 (on the left) is in decay, and it is no…
NASA on the sun: '…tiny variations can have a significant effect on terrestrial climate."
Researchers have considered the possibility that the sun plays a role in global warming. From NASA GSFC: Solar Variability and Terrestrial Climate In the galactic scheme of things, the Sun…
Neutrons and the 1970s cooling period
Note: the original title Solar Neutrons and the 1970s cooling period was unintentionally misleading as Dr. Svalgaard points out in comments: What produces Solar Neutrons? the title of the post…
New paper demonstrates that climate responds to short and long-term changes in solar activity
(Via the Hockey Schtick) A new peer reviewed paper published in The Holocene finds a significant link between solar activity and climate over the past 1000 years. According to the…
The sun – still slumping
The latest solar cycle update graphs have been released by the NOAA SWPC today, and the anemic cycle 24 continues: The current count isn’t keeping up with the prediction line…
The Sun has changed its character
Guest post by David Archibald A number of solar parameters are weak, and none is weaker than the Ap Index: Figure 1: Ap Index 1932 to 2026 Figure 1 shows…
A quiet cue ball sun
Source: http://sdo.gsfc.nasa.gov/assets/img/latest/latest_4096_4500.jpg A couple of people have noticed (as did I) that the sun is essentially blank.
NASA June 2012 Solar Cycle 24 Prediction
Compiled by Joe D’aleo WeatherBell via NASA MSFC The current prediction for Sunspot Cycle 24 gives a smoothed sunspot number maximum of about 60 in the Spring of 2013. We…
NASA/Hathaway's updated solar cycle prediction – smallest in 100 years
…the predicted size makes this the smallest sunspot cycle in about 100 years (Updated 2012/05/01) From: http://solarscience.msfc.nasa.gov/predict.shtml The current prediction for Sunspot Cycle 24 gives a smoothed sunspot number maximum…
Solar Update March 2012
by David Archibald Figure 1: Heliospheric Current Sheet Tilt Angle 1976 – 2012 The heliospheric current sheet tilt angle is currently at 67°. Solar maximum occurs when it reaches 74°…
The sun is still in a funk: sunspot numbers are dropping when they should be rising
The sunspot number for February from SIDC is down again, to 33.1 Here’s the source of that data: http://sidc.oma.be/DATA/monthssn.dat So far, cycle 24 is significantly lower in SSN number that…
Do Latest Solar Studies Confirm Upcoming Global Cooling?
Guest post by Matti Vooro I fully support the findings of Jan –Erik Solheim , Kjell Stordahl and Ole Humlum and their very recent paper called The long sunspot cycle…
Headlines over solar cycle 25 and potential global cooling
There’s a story about solar cycle 25, and a potential “mini ice age” in the UK Daily Mail by David Rose that is making headlines today, even hitting the Drudge…
First Estimate of Solar Cycle 25 Amplitude – may be the smallest in over 300 years
Guest post by David Archibald Predicting the amplitude of Solar Cycle 24 was a big business. Jan Janssens provides the most complete table of Solar Cycle 24 predictions at: http://users.telenet.be/j.janssens/SC24.html…
Solar-Terrestrial Power Update
By Paul L. Vaughan, M.Sc. The amplitude of Earth’s zonal winds is modulated by the solar cycle. Here’s a concise visual update based on the latest data: LOD’ = rate…
Hathaway's November Solar Prediction
By David Archibald Joe D’Aleo asked for my comments on NASA’s James Hathaway’s latest solar prediction, available here: http://solarscience.msfc.nasa.gov/predict.shtml When I read May 2013 for solar cycle maximum, I thought…
BREAKING – major AAS solar announcement: Sun's Fading Spots Signal Big Drop in Solar Activity
“If we are right, this could be the last solar maximum we’ll see for a few decades,” Hill said. “That would affect everything from space exploration to Earth’s climate.” Update:…
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