Articles Tagged "Solar News"

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How Well Do Scientists Understand How Changes in Earth's Orbit Affect Long-Term Natural Climate Trends? ScienceDaily.com
Saturday, February 6th 2010, 11:52 AM EST
Co2sceptic (Site Admin)
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ScienceDaily (Feb. 5, 2010) — The notion that scientists understand how changes in Earth's orbit affect climate well enough for estimating long-term natural climate trends that underlie any anthropogenic climate change is challenged by findings just published.

The new research was conducted by a team led by Professor Eelco Rohling of the University of Southampton's School of Ocean and Earth Science hosted at the National Oceanography Centre, Southampton.

"Understanding how climate has responded to past change should help reveal how human activities may have affected, or will affect, Earth's climate. One approach for this is to study past interglacials, the warm periods between glacial periods within an ice age," said Rohling.

He continued: "Note that we have here focused on the long-term natural climate trends that are related to changes in Earth's orbit around the Sun. Our study is therefore relevant to the long-term climate future, and not so much for the next decades or century."

Click source to read more
Source Link: sciencedaily.com
NASA has announced substantial changes are occurring in the surface of the Sun which could bring about the next long lasting cold era.
Friday, October 9th 2009, 3:43 AM EDT
Co2sceptic (Site Admin)
The Space and Science Research Center (SSRC) in Florida conducted further research into the announcement and discovered the sun's changes are the outcome of a family of cycles which result in climate shifts from cold to warm and back again.

"The Sun's surface flows have slowed dramatically as NASA has indicated,” said SSRC director, John Casey regarding the nature of these changes.

“When the surface movement slows down, sunspot counts drop significantly. And when we have sunspot counts lower than 50 it means only one thing - an intense cold climate, globally,” Casey said.

NASA says the solar cycle 25, the one after the next that starts this spring will be at 50 or lower. The general opinion of SSRC scientists is that it could begin even sooner within three years with the start of the next solar cycle 24.
Source Link: meteolive.leonardo.it
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Mystery of the Missing Sunspots, Solved? - NASA: Updated by Leif Svagaard
Thursday, June 18th 2009, 4:38 AM EDT
Co2sceptic (Site Admin)
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Above: A helioseismic map of the solar interior

The sun is in the pits of a century-class solar minimum, and sunspots have been puzzlingly scarce for more than two years. Now, for the first time, solar physicists might understand why.

Updated below by Leif Svalgaard via WUWT
Source Link: science.nasa.gov
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Solar Cycle and El Nino: New research points to stronger connection by Steve LaNore, Chief meteorologist at KDAF-TV Dallas (1998-2000), Chief at KXII-TV (Sherman) since 2006
Saturday, July 18th 2009, 6:26 AM EDT
Co2sceptic (Site Admin)
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New research led by the National Center for Atmospheric Research (NCAR) in Boulder, Colorado shows that maximum solar activity and solar fluctuations through the complete solar cycle have impacts on Earth that mimic La Nina and El Nino events in the Pacific Ocean. This research may set the stage for more accurate predictions of weather patterns at various times during the Solar Cycle, which lasts approximately 11 years.
Source Link: examiner.com
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New Paper: Solar irradiance at Earth surface varies up to 24 times more than expected
Monday, February 14th 2011, 6:09 PM EST
Co2sceptic (Site Admin)
A new peer-reviewed paper published in the journal Atmospheric Chemistry and Physics finds that measurements of solar irradiance at ground level at the South Pole show variations of up to 24 times more than would be expected over the course of a solar cycle. While satellite measurements find that total solar irradiance only varies 0.1% from a solar minimum to solar maximum, the ground-level measurements analyzed by the authors show a change of 1.8 ± 1.0% in the UV-A (320–400 nm) spectrum and 2.4 ± 1.9% in the visible (400–600 nm) spectrum over the course of a solar cycle.

Regressions based on all 17 solstice periods indicate approximate 1.8% and 2.4% decreases in ground-level irradiance for the wavelength regions 320–400 nm and 400–600 nm, respectively, from solar maximum to solar minimum. The associated uncertainty ranges are approximately 0.8–2.7% for the UV-A and 0.5%–4.3% for the visible.

Changes in extraterrestrial irradiance over the solar cycle surely contribute a portion of the variability deduced at the polar surface for the 320–400 nm region, although the magnitude of this contribution is uncertain. However, the inferred solar cycle dependence in the 400–600 nm visible band is too large to be of extraterrestrial origin unless one adopts values at the lowest end of the error range.
Source Link: hockeyschtick.blogspot.com
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SC25.Com Forecast: Overlay Produced With Old Style "Solar Irradiance" Chart.
Sunday, May 10th 2009, 12:46 PM EDT
Co2sceptic (Site Admin)
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We have put together an overlay onto the original SI graph from NCDC.NOAA.GOV (thanks to the JunkScience archive Solar Irradiance) to show you the expected fall in the Sun's Solar Output during Solar Cycle 24 (SC24). As you can see the fall is very steep when you compare it to what we have experienced in the past 50-60 years (The Modern Day Warming Period). The Earth warmed as a consequence of Higher Solar Activity and NOT "Man Made CO2"

The next question will be how low will SC25 (the next Solar Cycle) be as a result of this, and could we see the start of another Dalton Minimum (the period between 1790-1830) in 10-12 years time, this was the last time our Sun had long term low Solar Activity and our climate went into Global Cooling.
NASA Shows Quiet Sun Means Cooling of Earth's Upper Atmosphere
Thursday, December 17th 2009, 5:41 AM EST
Co2sceptic (Site Admin)
HAMPTON, Va., Dec. 16 /PRNewswire-USNewswire/ -- New measurements from a NASA satellite show a dramatic cooling in the upper atmosphere that correlates with the declining phase of the current solar cycle. For the first time, researchers can show a timely link between the Sun and the climate of Earth's thermosphere, the region above 100 km, an essential step in making accurate predictions of climate change in the high atmosphere.

Scientists from NASA's Langley Research Center and Hampton University in Hampton, Va., and the National Center for Atmospheric Research in Boulder, Colo., will present these results at the fall meeting of the American Geophysical Union in San Francisco from Dec. 14 to 18.

Earth's thermosphere and mesosphere have been the least explored regions of the atmosphere. The NASA Thermosphere-Ionosphere-Mesosphere Energetics and Dynamics (TIMED) mission was developed to explore the Earth's atmosphere above 60 km altitude and was launched in December 2001. One of four instruments on the TIMED mission, the Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) instrument, was specifically designed to measure the energy budget of the mesosphere and lower thermosphere. The SABER dataset now covers eight years of data and has already provided some basic insight into the heat budget of the thermosphere on a variety of timescales.

Click source to read FULL report
Source Link: au.sys-con.com
The Interplanetary Magnetic Field, It comes from the Sun!
Wednesday, June 3rd 2009, 6:29 PM EDT
Co2sceptic (Site Admin)
Image AttachmentThe Sun is a big magnet.

During solar minimum the Sun's magnetic field, like Earth's, resembles that of an iron bar magnet, with great closed loops near the equator and open field lines near the poles. Scientists call such a field a "dipole." The Sun's dipolar field is about as strong as a refrigerator magnet, or 50 gauss. Earth's magnetic field is 100 times weaker.

During the years around solar maximum (2000 and 2001 are good examples) spots pepper the face of the Sun. Sunspots are places where intense magnetic loops -- hundreds of times stronger than the ambient dipole field -- poke through the photosphere. Sunspot magnetic fields overwhelm the underlying dipole; as a result, the Sun's magnetic field near the surface of the star becomes tangled and complicated.
Source Link: spaceweather.com
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Russians may be the first to reach the Sun by Irina Shlionskaya
Friday, June 3rd 2011, 6:45 AM EDT
Co2sceptic (Site Admin)
Despite the fact that the Sun is our "native" star, to date no one has been able to examine it at a close range. Now helio-physicists of several countries are working to create devices that would allow them to approach the sun as close as possible and study the processes taking place there. It is possible that the first solar probe will be launched in Russia.

The idea of ​​sending a spacecraft to the sun originated in the Russian scientific community in the 1970 (under Brezhnev). It involved not a manned spacecraft, but rather a research probe that was to be sent to the Sun. At the time, however, this project seemed technically unfeasible. The real work on the device able to explore the Sun from an extremely small distance (30-40 solar radii), was commenced by the Russian scientists only in 2005. Later, the project was included in the federal space program.

Now experts of the Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation named after Pushkov (IZMIRAN), Physics Institute of the Academy of Sciences (FIAN) and other research institutions along with their colleagues from the "Space Agency" are working on the completion of the project of Interhelioprobe device. By the end of the year the NGO named after Lavochkin will complete design sketches to determine the composition of the research equipment and the appearance of the "solar spy" planned to be "delivered" in the space at the top of the rocket Soyuz-2. It is assumed that 17 units will be housed on board of the domestic probe. Since their combined weight must not exceed 120 kilograms, specialists will use the most advanced technology and materials for the construction of the equipment.
Source Link: english.pravda.ru
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Solar geomagnetic activity is at an all time low – what does this mean for climate?
Wednesday, December 9th 2009, 4:44 PM EST
Co2sceptic (Site Admin)
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I’ve mentioned this solar data on WUWT several times, it bears repeating again. Yesterday, NOAA’s Space Weather Prediction Center released their latest data and graph of the interplanetary geomagnetic index (Ap) which is a proxy for the activity of the solar dynamo. Here is the data provided by SWPC. Note the graph, which I’ve annotated above.

Click source for FULL report
Source Link: wattsupwiththat.com
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