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New telescopes see magnetic flux ropes on Sun (which can’t possibly affect Earths climate).

Posted By Joanne Nova On April 29, 2015 @ 4:06 pm In Global Warming | Comments Disabled

A new telescope has peered into the Sun to see solar magnetic flux ropes for the first time. Severe flux rope twists have been described as being like “earthquakes” on the sun, and are linked to eruptions of large solar flares that change magnetic fields, and cause radiation and energetic particles to rain on Earth.

We don’t know much about solar magnetic flux ropes. We know they affect space weather, but thanks to climate experts we already “know” they can’t possibly, ever in a million years, affect Earth’s weather. Even though we’ve only just been able to see them and have no long term data on them, we have Global Circulation Climate models (which don’t include these solar factors), so we have 95% certainty that none of the particles, fields or radiation changes have much impact on Earth. They might fritz satellites, electronics and communications, but Earth’s atmosphere has no electrical component (wink), and the models “work” (kinda, sorta, apart from “the pause”, the arctic, the ocean, the antarctic, and the holocene) without any of this fuzzy solar stuff. Got that? Repeat after me. The Sun does not affect Earth’s climate. (Good boys and girls. You are fit for a government grant.)

Fine details of a magnetic flux rope captured by the New Solar Telescope at Big Bear Solar Observatory for Solar Active Region 11817 on 2013 August 11. The structure is further demonstrated by the 3-D magnetic modeling based the observations of Helioseismic and Magnetic Imager on board Solar Dynamic Observatory. The image was created by Chang Liu, one of the co-authors of the paper.Credit: Chang Liu

 

Science Daily: Scientists at NJIT’s Big Bear Solar Observatory (BBSO) have captured the first high-resolution images of the flaring magnetic structures known as solar flux ropes at their point of origin in the Sun’s chromosphere.

Flux ropes are bundles of magnetic fields that together rotate and twist around a common axis, driven by motions in the photosphere, a high-density layer of the Sun’s atmosphere below the solar corona and chromosphere.

┬áDavid’s solar notch delay theory, which predicts cooling, by the way, is doing very well. We’ll be discussing an update and more news on his theory that TSI is a leading indicator (but not a direct cause) of temperature changes on Earth in up and coming posts. Energetic particles, solar winds, changes in radiation and magnetic fields, are all candidates for the force (or forces) that influence Earth’s climate, but are delayed by half a full solar cycle (of ~22 years) from changes in the TSI. Previous problems with Fourier transform approximations have been fixed, and a delay is indeed implied by the notch. Sorry about the big gap in publications on it, there is something scientifically big going on (separate from the ND solar theory) behind the scenes and he prefers to work with a low profile rather than in the “blood sport” distraction that publicity brings. Thanks to all the people who support our ground breaking research. Donations to this blog keep us both going. To the team who make independent science and independent science commentary possible — We’re very grateful, we can’t do this without you.

We will be entering the fray again soon. I have a series of posts lined up. Thanks for your patience.

The Press release: New solar telescope peers deep into the sun to track the origins of space weather

Scientists at NJIT’s Big Bear Solar Observatory (BBSO) have captured the first high-resolution images of the flaring magnetic structures known as solar flux ropes at their point of origin in the Sun’s chromosphere. Their research, published today in Nature Communications, provides new insights into the massive eruptions on the Sun’s surface responsible for space weather.

Flux ropes are bundles of magnetic fields that together rotate and twist around a common axis, driven by motions in the photosphere, a high-density layer of the Sun’s atmosphere below the solar corona and chromosphere. The NJIT images were taken from observations of the newly commissioned 1.6m New Solar Telescope (NST) at BBSO.

“These twisting magnetic loops have been much studied in the Sun’s corona, or outer layer, but these are the first high-resolution images of their origination in the chromosphere below it. For the first time, we can see their twisting motion in great detail and watch how it evolves,” said Haimin Wang, distinguished professor of physics at NJIT and the study’s lead author.

Wang and his co-authors strung together a series of images which trace the formation of an S-shaped bundle of magnetic fields from which a set of loops peel off and grow upward into a multi-strand flux rope within a few minutes. Two flare ribbons appear at the two sides of the rising flux rope.

“We have been looking for erupting twisted solar flux ropes in the chromosphere, but observations of these eruptions under excellent conditions are very rare,” Wang said, adding that the NST images they captured provide unprecedented detail, as well as powerful new clues about their initiation and their relationship to solar eruptions and coronal mass ejections.

Energy releases in solar flares and associated forms of eruptions occur when magnetic field lines, with their powerful underlying electric currents, are twisted beyond a critical point that can be measured by the number of turns in the twist. The largest of these eruptions cause what is known as space weather — the radiation, energetic particles and magnetic field releases from the Sun powerful enough to cause severe effects in Earth’s near environment, such as the disruption of communications, power lines and navigations systems.

“One of the exciting things about these new images is that we can now distinguish between mild twists and those severe enough to cause space weather,” said Wang, who likened the eruptions to earthquakes, which are energy releases following the build-up of tension as tectonic plates rub against each other along fault lines. The team is developing tools to predict space weather from solar observations and modeling.

REFERENCE

Haimin Wang, Wenda Cao, Chang Liu, Yan Xu, Rui Liu, Zhicheng Zeng, Jongchul Chae, Haisheng Ji. Witnessing magnetic twist with high-resolution observation from the 1.6-m New Solar Telescope. Nature Communications, 2015; 6: 7008 DOI: 10.1038/ncomms8008

Cue sneering trolls, in 1, 2, 3…

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