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Keyword: maunderminimum

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  • astronomy picture of the Day - Solar Minimum versus Solar Maximum

    12/11/2023 12:43:38 PM PST · by MtnClimber · 9 replies
    NASA ^ | 11 Dec, 2023 | Video Credit: NASA, SDO, SVS
    Explanation: The surface of our Sun is constantly changing. Some years it is quiet, showing relatively few sunspots and active regions. Other years it is churning, showing many sunspots and throwing frequent Coronal Mass Ejections (CMEs) and flares. Reacting to magnetism, our Sun's surface goes through periods of relative calm, called Solar Minimum and relative unrest, called Solar Maximum, every 11 years. The featured video shows on the left a month in late 2019 when the Sun was near Solar Minimum, while on the right a month in 2014 when near Solar Maximum. The video was taken by NASA's Solar...
  • A strong geomagnetic storm hit earth early Wednesday morning

    05/12/2021 8:50:22 PM PDT · by BenLurkin · 19 replies
    WTHI ^ | David Siple
    Early Wednesday morning the Space Weather Prediction Center put out an active warning for a G3 – Strong Geomagnetic Storm. (WABASH VALLEY) WTHI – A coronal mass ejection (CME) hit earth at 2:43 AM Eastern Wednesday, May 12. A CME is a large expulsion of plasma and magnetic fields from the Sun. The Deep Space Climate Observatory (DSCOVR) satellite discovered a CME racing toward earth at around 961,882 miles per hour. The Space Weather Prediction Center from NOAA said that this CME hit earth at a G3 or a Strong category. When this occurs, voltage corrections may be needed as...
  • England is on for its Coldest May since Record-Keeping Began back in 1659 (during the Maunder Minimum)

    05/10/2021 4:15:47 PM PDT · by george76 · 59 replies
    Electroverse ^ | MAY 7, 2021
    Following its coldest APRIL since 1922, England is now on for its coldest MAY since record-keeping began some 362 years ago–since the Maunder Minimum (1645-1715)! Back in 1659, England was still processing the death of Oliver Cromwell, who, after the execution of King Charles I, had ruled the Commonwealth of England for 5 years. The year 1659 is also the start date of the Central England Temperature (CET) dataset, which has proved an invaluable resource for meteorologists and climate scientists alike. Astonishingly, what the dataset reveals in 2021, in this time of supposed “catastrophic global heating,” is that England is...
  • Physicist: Upcoming Grand Solar Minimum Could Wipe Out Global Warming for Decades

    04/24/2021 4:46:10 AM PDT · by ConservativeInPA · 50 replies
    Climate Depot ^ | October 5, 2020 | Climate Depot
    Unknown to most people except those with an interest in solar science, the sun is about to shut down. Well, not completely – we’ll still have plenty of sunlight and heat, but the small dark blotches on the sun’s surface called sunspots, visible in the figure below, are on the verge of disappearing. According to some climate scientists, this heralds a prolonged cold stretch of maybe 35 years starting in 2020, despite global warming.How could that happen? Because sunspots, which are caused by magnetic turbulence in the sun’s interior, signal subtle changes in solar output or activity – changes that...
  • The Coming Modern Grand Solar Minimum

    04/20/2021 4:39:23 AM PDT · by MtnClimber · 43 replies
    American Thinker ^ | 20 Apr, 2021 | Anony Mee
    I wrote last week about the coming Grand Solar Minimum, something that will have much more impact on the environment than anything we puny humans can do. It generated a lot of interest from all sides, so it’s time to delve deeper into what we can expect. Starting with the hype: During the last grand solar minimum (GSM), the Maunder Minimum of 1645 to 1715, glaciers advanced, rivers froze, sea ice expanded -- in short, the Little Ice Age. Is another one is almost upon us? Probably not. Maunder occurred at the tail end of a bi-millennial cycle. These cycles...
  • Maverick astrophysicist calls for unusually intense solar cycle, straying from consensus view

    12/21/2020 9:58:17 AM PST · by BenLurkin · 54 replies
    Washington Post ^ | 12/19/2020 | Matthew Cappuci
    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...
  • Mars-sized 'Light-bridge' on Surface of Sun Appears to Signal Break-up of Vast Sunspot

    08/10/2020 8:57:01 PM PDT · by BenLurkin · 23 replies
    Newsweek ^ | 8/10/20 | Aristos Georgiou
    Amateur astronomer and Florida resident Howard Eskildsen snapped an image of the "light bridge"—which has a length that's roughly equal to the diameter of Mars—in a recently formed sunspot dubbed AR2770, spaceweather.com reported. These phenomena are caused by strong magnetic field concentrations, which inhibit convection—the transfer of heat from one place to another within gases and liquids. This process heats the solar surface. Hot "bubbles" of plasma—charged particles that are one of the four fundamental states of matter—are transported from deeper, hotter layers to the surface, whereas cooler plasma is transported back to the interior... According to Felipe, light bridges...
  • Massive sunspot is turning towards Earth this can result in major solar flares that can effect electrical systems

    08/07/2020 7:10:31 PM PDT · by BenLurkin · 73 replies
    First Post ^ | 08/07/2020
    A massive sunspot on the Sun is turning towards our planet and this could result in strong solar flares. The sunspot AR2770 was detected earlier this week and is expected to grow in size in the upcoming days. A report by SpaceWeather.com - a space weather forecasting website - said that multiple minor flares have been emitted by the sunspot already as it faced towards the earth. These flares have caused "minor waves of ionization to ripple through Earth's upper atmosphere" but nothing major yet. A clear picture of the AR2770 has also surfaced that gives a better idea into...
  • NASA spots piping hot batch of new sunspots

    06/03/2020 10:01:41 PM PDT · by BenLurkin · 42 replies
    NY Post ^ | June 2, 2020 | | Mike Wehner
    Just a couple of days ago, NASA helped spot a new batch of sunspots and the flares arcing above them. In a new blog post, NASA explains that the flares weren’t particularly powerful and didn’t register with NOAA’s Space Weather Prediction Center, but NASA’s own hardware was able to detect them. The space agency suggests that the sunspots and flares could be an indication that the star is becoming more active yet again. The Sun typically runs on cycles that last around 11 years on average. During times of high activity, called the solar maximum, sunspots and flares are frequent....
  • Sun unleashes biggest flare since 2017. Is our star waking up?

    05/31/2020 6:40:04 PM PDT · by BenLurkin · 23 replies
    Space.com ^ | 31 May 2020 | Mike Wall -
    Today's flare was an M-class eruption, so it was no monster. (And it wasn't aimed at Earth, so there's no chance of supercharged auroras from a potential associated coronal mass ejection of solar plasma.) But the outburst could still be a sign that the sun is ramping up to a more active phase of its 11-year activity cycle, NASA officials said. If that's the case, the most recent such cycle, known as Solar Cycle 24, may already have come to an end. Scientists peg the start of new cycles at "solar minimum," the time when the sun sports the fewest...
  • The last time the sun was this quiet, Earth experienced an ice age

    05/20/2020 8:33:22 AM PDT · by BenLurkin · 64 replies
    9News ^ | 05/20/2020
    The last time this occurred was between 1650 and 1715, during what's known as the Little Ice Age in Earth's Northern Hemisphere... Scientists have known this solar minimum was coming because it's a regular aspect of the sun's cycle. Sunspots were peaking in 2014, with low points beginning in 2019, according to NASA. The sun is also responsible for what's known as space weather, sending particles and cosmic rays streaming across our solar system. The sun's strongly magnetised sunspots release solar flares, which can send X-rays and ultraviolet radiation hurtling toward Earth. Even when the sun is quiet during the...
  • Sun’s Activity Is Extremely Weak Compared to Similar Stars – “We Were Very Surprised

    05/03/2020 6:59:35 AM PDT · by BenLurkin · 28 replies
    Sci-Tech Daily ^ | May 1, 2020 | Max Planck Institute for Solar System Research
    The extent to which solar activity...varies can be reconstructed using various methods — at least for a certain period of time. Since 1610, for example, there have been reliable records of sunspots covering the Sun; the distribution of radioactive varieties of carbon and beryllium in tree rings and ice cores allows us to draw conclusions about the level of solar activity over the past 9000 years. For this period of time, scientists find regularly recurring fluctuations of comparable strength as during recent decades. A comprehensive catalog containing the rotation periods of thousands of stars has been available only for the...
  • Understanding Solar Maximum and Minimum

    02/08/2020 10:52:48 AM PST · by Diana in Wisconsin · 18 replies
    NTD News ^ | February 8, 2020 | Miguel Moreno
    That fiery ball in space does settle down every 11 years or so. It’s called the solar minimum, and the Space Weather Prediction Center indicates that this phase of low sunspot activity will continue for a few more years. During a solar minimum, the sun has very few sunspots on its surface, which some speculate could affect the earth’s weather. In contrast, a solar maximum has more sunspots on its surface and solar activity is high. “Usually a solar minimum lasts about a year or so, but then sometimes it can last for decades or even longer,” said Prof. Jason...
  • Weather warning: Earth could be hit by MINI ICE-AGE as Sun ‘hibernates’ (only 10.96 years left)

    02/03/2020 2:25:53 PM PST · by Libloather · 82 replies
    Express ^ | 2/03/20 | SEAN MARTIN
    Sunspot activity on the surface of the Sun follows a well-known but little understood 11 year cycle. Activity rises and falls creating the so-called solar maximum and then solar minimum. During a solar maximum, the Sun is more powerful and is littered with sunspots. Conversely when the Sun enters a solar minimum – which it did about two years ago - energy from our host star begins to lessen. However, one expert has warned that the Sun will enter a period of “hibernation” this year, in what as known as a Grand Solar Minimum (GSM). **SNIP** “The reduction in temperature...
  • Deep solar minimum on the verge of an historic milestone

    12/13/2019 1:17:04 PM PST · by Red Badger · 147 replies
    wattsupwiththat.com ^ | December 12, 2019 | by Paul Dorian
    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...
  • Professor Valentina Zharkova’s ‘Expanded’ Analysis still Confirms Super Grand Solar Minimum (2020-2055)

    12/13/2019 11:54:44 AM PST · by CedarDave · 35 replies
    Electroverse ^ | July 2, 2019 | Cap Allon
    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...
  • Climate and the Solar Magnetic Field (Upcoming Grand Minimum 2020 - 2050)

    11/10/2019 9:21:20 AM PST · by 11th_VA · 49 replies
    YouTube by GWPF ^ | Nov 8, 2018 | Professor Valentina Zharkova
    Video at the LinkUpcoming Modern Grand Minimum To occur 2020 - 2050 Big Impact on the terrestrial temperature via SI and reduction of Magnetic field Shortage of vegetation periods can lead to possible food shortage in 2028 - 2032 (Conclusions at the 45:00 minute mark)
  • Quiet sun sets new record for spotless days (Maunder like Min on the way)

    11/01/2019 9:36:16 PM PDT · by LesbianThespianGymnasticMidget · 28 replies
    wattsupwiththat.com ^ | November 1, 2019 | Anthony Watts
    As of November 1st, the current stretch of days without any observable sunspots in solar cycle 24 has reached a total of 228 spotless days in 2019 so far That’s 75% of the year so far. During the 2008 solar minimum, there were 268 days without sunspots, or 73% of the year. The sun as seen by the Solar Dynamics Observatory on Oct 31 2019 Here’s a tally of spotless days for the last solar cycle: 2019 total: 228 days (75%) 2018 total: 221 days (61%) 2017 total: 104 days (28%) 2016 total: 32 days (9%) 2015 total: 0 days...
  • Oscillations of the baseline of solar magnetic field and solar irradiance on a millennial timescale

    07/08/2019 3:18:24 PM PDT · by CedarDave · 29 replies
    Nature ^ | 24 June 2019 | V. V. Zharkova, S. J. Shepherd, S. I. Zharkov & E. Popova
    Abstract:Recently discovered long-term oscillations of the solar background magnetic field associated with double dynamo waves generated in inner and outer layers of the Sun indicate that the solar activity is heading in the next three decades (2019–2055) to a Modern grand minimum similar to Maunder one. On the other hand, a reconstruction of solar total irradiance suggests that since the Maunder minimum there is an increase in the cycle-averaged total solar irradiance (TSI) by a value of about 1–1.5 Wm−2 closely correlated with an increase of the baseline (average) terrestrial temperature. In order to understand these two opposite trends, we...
  • Solving the sun's super-heating mystery with Parker Solar Probe

    06/06/2019 12:08:09 AM PDT · by SunkenCiv · 22 replies
    Phys dot org ^ | June 2019 | James Lynch, University of Michigan
    ...why is its outer atmosphere hotter than its fiery surface? University of Michigan researchers believe they have the answer, and hope to prove it with help from NASA's Parker Solar Probe. In roughly two years, the probe will be the first manmade craft to enter the zone surrounding the sun where heating looks fundamentally different than what has previously been seen in space. This will allow them to test their theory that the heating is due to small magnetic waves travelling back and forth within the zone... Such high temperatures cause the solar atmosphere to swell to many times the...