Category Archives: solar

Do Latest Solar Studies Confirm Upcoming Global Cooling?

Posted on February 13, 2012 by

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 23 predicts a significant temperature decrease in cycle 24  dated … Continue reading →

Posted in solar | Tagged , , , , , , , | 130 Comments

Quantifying the Solar Cycle 24 Temperature Decline

Posted on February 11, 2012 by

Guest post by David Archibald Three wise Norwegians – Jan-Erik Solheim, Kjell Stordahl and Ole Humlum – have just published a paper entitled “The long sunspot cycle 23 predicts a significant temperature decrease in cycle 24”. It is available online … Continue reading →

Posted in forecasting, Science, solar | Tagged , , , , , , , | 205 Comments

Interesting presentations from the Nagoya Workshop on the Relationship between Solar Activity and Climate Changes

Posted on February 8, 2012 by

As the sun goes blank today, just 15 months from the expected Cycle 24 solar maximum, Dr. Leif Svalgaard writes in to advise me of the presentations made in the workshop in Japan in mid January. Dr. Svalgaard was an … Continue reading →

Posted in Science, solar | Tagged , , , , , , , | 161 Comments

Headlines over solar cycle 25 and potential global cooling

Posted on January 29, 2012 by

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 Report. The headline is: Forget global warming – it’s Cycle … Continue reading →

Posted in climate data, solar | Tagged , , , , , , , , , | 186 Comments

Major x class solar flare

Posted on January 27, 2012 by

Blogging from my phone Check WUWT Solar Reference Page Updated: It was an X1.7 class eruption,  it does not appear to be headed towards Earth. JTF

Posted in solar flare | Tagged , , , , , | 26 Comments

First Estimate of Solar Cycle 25 Amplitude – may be the smallest in over 300 years

Posted on January 25, 2012 by

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 Prediction activity for Solar Cycle 24 seemed to have peaked … Continue reading →

Posted in solar | Tagged , , , , , , , | 251 Comments

Biggest solar storm since 2005

Posted on January 24, 2012 by

It is being called by WaPo “The Biggest solar storm since 2005“. The sun erupted late on January 22nd, 2012 with an M8.7 class flare. The Solar Dynamics Observatory captured the flare as seen below. From NASA: The coronal mass … Continue reading →

Posted in solar flare | Tagged , , , , , , , | 48 Comments

The Ridiculousness Continues – Climate Complexity Compiled

Posted on January 21, 2012 by

By WUWT regular “Just The Facts” With the help of an array of WUWT reader comments on this thread and several others documented within, I’ve been compiling a summary of all potential climatic variables in order to build a conceptual … Continue reading →

Posted in aerosols, AMO, Antarctic, Arctic, climate data, clouds, cosmic rays, dust storms, earth, Earthquakes, energy, ENSO, feedbacks, geothermal energy, Gravity, hurricanes, Methane, oceans, PDO, petroleum, Science, sea ice, snow, solar, solar power, thorium power, tornadoes, wind power | Tagged , , , , , , , , , , | 233 Comments

Big CME headed toward Earth

Posted on January 20, 2012 by

From Spaceweather.com : Active sunspot 1401 erupted yesterday, Jan. 19th around 16:30 UT, producing an M3-class solar flare and a full-halo coronal mass ejection (CME). The Solar and Heliospheric Observatory recorded the cloud expanding almost directly toward Earth:

Posted in solar, solar flare | Tagged , , , , , , , | 79 Comments

Solar Cycle 24 Length and Its Consequences

Posted on January 8, 2012 by

Guest post by David Archibald Solar Cycle 24 is now three years old and predictions of the date of solar maximum have settled upon mid-2013. For example, Jan Janssens has produced this graph predicting the month of maximum in mid-2013, … Continue reading →

Posted in Science, solar | Tagged , , , | 140 Comments

Solar cycle update: sunspots down, Ap index way down

Posted on January 4, 2012 by

The NOAA SWPC monthly solar cycle update has been published here, and after a big spike last month, the sunspot count is down again. There’s an even bigger drop though in the Ap geomagnetic index, as seen and discussed below … Continue reading →

Posted in NOAA, solar | Tagged , , , , , | 150 Comments

Solar-Terrestrial Power Update

Posted on December 25, 2011 by

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 of change of length of day

Posted in solar | Tagged , , , , , , | 204 Comments

Comet Lovejoy survives a brush with Sol

Posted on December 16, 2011 by

From Physorg.com Comet Lovejoy was only discovered a couple of weeks ago. It was supposed to melt as it came so close to the sun that the temperatures would hit several million degrees. But astronomers watching live with NASA telescopes … Continue reading →

Posted in solar, Astronomy | Tagged , , , , , , , | 74 Comments

November Solar Activity Report – sunspots and 10.7cm radio flux up, but the solar magnetic Ap index crashes

Posted on December 6, 2011 by

This is strange. Usually we see the geomagnetic Ap Index increase with increasing sunspots and 10.7 cm radio flux. But the Ap index (the third graph below) has crashed to the third lowest level since January 2000, matching what it … Continue reading →

Posted in Science, solar | 149 Comments

New paper suggests sun may be headed for a Maunder minimum

Posted on December 2, 2011 by

Just published in GRL, a new paper by Lockwood et al that suggests the sun may be headed for a Maunder type minimum.: The persistence of solar activity indicators and the descent of the Sun into Maunder Minimum conditions Key … Continue reading →

Posted in Science, solar | Tagged , , | 189 Comments

Are secular correlations between sunspots, geomagnetic activity, and global temperature significant?

Posted on November 15, 2011 by

New paper by Love et al suggests no prominent role for solar‐terrestrial interaction in global climate change. I’m providing it here for discussion. We are not convinced that the combination of sunspot‐number, geomagnetic‐activity, and global‐temperature data can, with a purely … Continue reading →

Posted in Science, solar | Tagged , , , | 273 Comments

Hathaway’s November Solar Prediction

Posted on November 6, 2011 by

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 “That is my prediction”. But then at the bottom of … Continue reading →

Posted in Science, solar | Tagged , , , , | 125 Comments

Big CME hits earth, low latitude auroras possible

Posted on October 24, 2011 by

From the Rice University Spaceweather listserv Our space weather alert system is in level yellow, and the CME input of energy to the Earth’s magnetosphere still continues. So, if you live in northern latitudes, go out and look for auroras … Continue reading →

Posted in solar flare, Spaceweather | Tagged , , , | 31 Comments

Shifting Sun-Earth-Moon Harmonies, Beats, & Biases

Posted on October 15, 2011 by

Paul L. Vaughan, M.Sc. – October 2011 This post has no introduction, per the author’s request, start with the graphs. A PDF of a more complete paper is linked at the end. – Anthony

Posted in solar | Tagged , , | 226 Comments

Solar and climate- no longer taboo

Posted on October 13, 2011 by

Paul Hudson of the BBC writes: This is an exciting time for solar physics, and its role in climate. As one leading climate scientist told me last month, it’s a subject that is now no longer taboo. And about time, … Continue reading →

Posted in Science, solar | Tagged , , | 228 Comments

High hopes for the Advanced Technology Solar Telescope

Posted on October 13, 2011 by

Sun-watchers hope giant telescope will get green light Observatory would reveal structures that trigger sunspots and space weather. Eric Hand Close and bright though it is, the Sun still defies a thorough understanding. One reason is that some of the … Continue reading →

Posted in solar, Technology | Tagged , | 72 Comments

Big jumps in September solar activity metrics

Posted on October 5, 2011 by

NOAA’s Space weather prediction center released their solar cycle progression updates, and it shows one of the largest jumps for all common solar metrics since cycle 24 began. Of course we know that the sunspot number has jumped significantly partly … Continue reading →

Posted in solar | Tagged , , | 68 Comments

Solar activity on the upswing, big sunspot rotating into view is producing x-class solar flares. Large CME expected soon, may hit earth.

Posted on September 25, 2011 by

From Spaceweather.com: New sunspot 1302 has already produced two X-flares(X1.4 on Sept. 22nd and X1.9 on Sept. 24th), can another be far behind? NOAA forecasters put the 24-hour probability at 20%. The sheer size of the active region suggests the … Continue reading →

Posted in solar flare | Tagged , , , , | 71 Comments

UV low during recent solar minimum

Posted on September 20, 2011 by

From the American Geophysical Union: Ultraviolet solar irradiance was low during recent solar minimum Solar irradiance, which varies with the 11-year solar cycle and on longer time scales, can affect temperature and winds in the atmosphere, influencing Earth’s climate. As … Continue reading →

Posted in Science, solar | Tagged , , , , | 53 Comments

Nir Shaviv on the CLOUD experiment, worth a read

Posted on September 1, 2011 by

Israeli Astrophysicist Dr. Nir Shaviv posted a guest essay at Luboš Motl The Reference Frame titled: The CLOUD is clearing In a nutshell he’s saying that cosmic ray flux modulated by solar variability has a strong place right alongside CO2, and … Continue reading →

Posted in cosmic rays, solar | 174 Comments