Keyword: solarcycle
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FTA: "The model developed by the team could help scientists better understand the 11-year solar cycle and improve the forecasting of space weather, which can disrupt GPS and communication satellites as well as dazzle night sky watchers with auroras."
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The solar cycle of the Sun's magnetic field lasts for around 11 years. We are currently at the beginning of Cycle 25, the 25th cycle since humans started recording them. The solar minimum is the part of the cycle that has the least amount of activity, while the solar maximum – which is due for July 2025 – is the most active, causing the Sun's magnetic poles to flip, sunspots, and solar eruptions of particles. The new study, reported in the journal Solar Physics, has found that solar storms will either occur before the maximum or after the maximum depending...
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The key to this proposed solar-weather connection lies in “terminator” events, which spell the end of a solar cycle. Over the course of 22 years, bands of magnetism wrapping around the sun slowly migrate toward the equator, interacting with one another to produce sunspots. Those sunspots, or cool, dark discolorations on the sun’s surface, pulsate with magnetic energy, occasionally hurling it into space in solar storms that can spark displays of the northern lights. There are two bands of magnetism per hemisphere on the sun. At solar minimum, both sets of bands are of equal and opposite strength, so the...
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The sun has begun a new 11-year cycle, and scientists have very different ideas on just how much energy will be available to fuel its eruptions. The consensus view of an international panel of 12 scientists calls for the new cycle, Solar Cycle 25, to be small to average, much like its predecessor, Solar Cycle 24. Scott McIntosh, foresees the sun going gangbusters. The cycle is already off to a fast start, coinciding with the recent publication of McIntosh's paper in Solar Physics. The study, with contributions from several of his colleagues, forecasts the nascent sunspot cycle to become one...
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The Sun may be in for a very busy time. According to new predictions, the next maximum in its activity cycles could be the one of the strongest we've seen. This is in direct contradiction to the official solar weather forecast from NASA and the NOAA, but if it bears out, it could confirm a theory about solar activity cycles that scientists have been working on for years. "Scientists have struggled to predict both the length and the strength of sunspot cycles because we lack a fundamental understanding of the mechanism that drives the cycle," said solar physicist Scott McIntosh...
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Giant flares and eruptions from the sun can cause space weather, and stormy space weather can interfere with everything from satellites to the electrical grid to airplane communications. Now, though, there's good news for people who monitor the phenomenon — the sun has passed from one of its 11-year activity cycles into another, and scientists predict that the new cycle should be just about as calm as the last. That doesn't mean, however, zero risk of extreme weather events. Even during the last, relatively weak solar cycle, drama on the sun triggered occasional weirdness on Earth like radio blackouts, disruptions...
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The cycle may result in dramatic space weather that could disrupt communications and power grids here on Earth. Two new sunspots have ended a long period of relative quiet on the surface of our blazing host star, heralding the start of a new 11-year cycle of sunspot activity — resulting in sometimes dramatic space weather that could disrupt communications and power grids here on Earth. The two new sunspots, designated as NOAA 2753 and 2754, were seen on Dec. 24 by NASA's Solar Dynamics Observatory — a satellite that monitors the exterior and interior of the sun from a geosynchronous...
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Professor Valentina Zharkova’s recent paper ‘Oscillations of the Baseline of Solar Magnetic Field and Solar Irradiance on a Millennial Timescale’ has been accepted for publishing in Nature. It confirms a Grand Solar Minimum (GSM) from 2020 to 2055, as all four magnetic fields of the sun go out of phase, while also suggesting centuries of natural warming post-Minima. Zharkova’s team’s expanded ‘double dynamo’ calculations match-up almost perfectly with the timelines of past Grand Minimas: the Maunder Minimum (1645–1715), Wolf minimum (1300–1350), Oort minimum (1000–1050), Homer minimum (800–900 BC); as well as with the past Grand Maximas: the Medieval Warm Period...
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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. The recent low sunspot activity is clearly reflected in the recent low values for the total solar irradiance. Data source: WDC-SILSO, Royal Observatory of Belgium, Brussels. Last day shown: 31 October 2019. Last diagram update: 1 November 2019. [Courtesy climate4you.com] *Deep solar minimum on the verge of an historic milestone* Overview The sun is currently in the midst of a deep solar...
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Have you been keeping an eye on Sol lately? One of the top astronomy stories for 2018 may be what’s not happening, and how inactive our host star has become. The strange tale of Solar Cycle #24 is ending with an expected whimper: as of May 8th, the Earthward face of the Sun had been spotless for 73 out of 128 days thus far for 2018, or more than 57% of the time. This wasn’t entirely unexpected, as the solar minimum between solar cycle #23 and #24 saw 260 spotless days in 2009 – the most recorded in a single...
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In linking to my sunspot update this week, there has been a lot of speculation at the climate website WattsUpWithThat that the next solar cycle has begun...which suggested that this sunspot was the first such sunspot this cycle, was not quite accurate however. This sunspot with an opposite polarity, which decayed so quickly that it did not rate getting a sunspot number, was not the first... The grand minimum of the 1600s, dubbed the Maunder Minimum in honor of the scientist who first identified it, was a century where almost no sunspots were visible. There was no apparent solar cycle....
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Blizzards, like the one that battered the East Coast this weekend, have doubled in number over the past 20 years. From 1960-94, the US had an average of nine blizzards per year. Since 1995, that annual average has risen to 19. And it's not just their frequency that's increasing. More blizzards are forming outside the normal storm season of October to March, scientists have found.
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The sun is almost completely blank. The main driver of all weather and climate, the entity which occupies 99.86% of all of the mass in our solar system, the great ball of fire in the sky has gone quiet again during what is likely to be the weakest sunspot cycle in more than a century. The sun's X-ray output has flatlined in recent days and NOAA forecasters estimate a scant 1% chance of strong flares in the next 24 hours. Not since cycle 14 peaked in February 1906 has there been a solar cycle with fewer sunspots. We are currently...
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Now we can see there are bright points in the solar atmosphere, which act like buoys anchored to what's going on much deeper down. They help us develop a different picture of the interior of the sun." ... Beginning in 2010, McIntosh and his colleagues began tracking the size of different magnetically balanced areas on the sun, that is, areas where there are an equal number of magnetic fields pointing down into the sun as pointing out. The team found magnetic parcels in sizes that had been seen before, but also spotted much larger parcels than those previously noted—about the...
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Some researchers predict that the following sunspot Cycle #25 may even be absent all together. “If this trend continues, there will be almost no spots in Cycle 25,” Noted Matthew Penn of the National Solar Observatory, hinting that we may be on the edge of another Maunder Minimum.
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Ice core data shows CO2 levels changed less than 10 parts per million from 1600-1800 during the MWP. From the Hockey Schtick: A new paper from Schurer et al (with Mann as co-author) finds that climate “models cannot explain the warm conditions around 1000 [years before the present, during the Medieval Warming Period] seen in some [temperature] reconstructions.”According to Schurer et al, “We find variations in solar output and explosive volcanism to be the main drivers of climate change from 1400-1900.” They also claim, “but for the first time we are also able to detect a significant contribution from greenhouse gas...
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Solar Cycle Warnings Politics / Environmental IssuesApril 01, 2013 - 01:31 PM GMT By: Andrew McKillop RECORD LOW SUNSPOT NUMBERS For reasons including "pure politically correct", NASA has fought a losing battle - against reality - on the subject of Global Warming, which it feels obliged to believe in as a "scientifically correct" theory. Linked to this, quite directly, NASA has also battled against reality on the subject of sunspot frequency, size, location on the Sun's surface and other variables linked to sunspot cycles in this present Cycle 24 of approximately 11-year-long cycles. These have been accurately recorded since Cycle...
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…the predicted size makes this the smallest sunspot cycle in about 100 years *********************************snip**************************From: http://solarscience.msfc.nasa.gov/predict.shtmlThe current prediction for Sunspot Cycle 24 gives a smoothed sunspot number maximum of about 60 in the Spring of 2013. We are currently over three years into Cycle 24. The current predicted size makes this the smallest sunspot cycle in about 100 years.The prediction method has been slightly revised. The previous method found a fit for both the amplitude and the starting time of the cycle along with a weighted estimate of the amplitude from precursor predictions (polar fields and geomagnetic activity near cycle minimum)....
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Thursday PM 12 Apr 2012 "Solar Cycle 24 Update" by The SI Weather TheSIWeather Could a trending pattern of low solar activity could result in global cooling?The SI Organization
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I’ve managed to get a copy of the official press release provided by the Southwest Research Institute Planetary Science Directorate to MSM journalists, for today’s stunning AAS announcement and it is reprinted in full here: WHAT’S DOWN WITH THE SUN? MAJOR DROP IN SOLAR ACTIVITY PREDICTED Latitude-time plots of jet streams under the Sun's surface show the surprising shutdown of the solar cycle mechanism. New jet streams typically form at about 50 degrees latitude (as in 1999 on this plot) and are associated with the following solar cycle 11 years later. New jet streams associated with a future 2018-2020 solar...
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