Sunspot Cycle 25 Stronger than 24 per Scientists

Discussion in 'Ham Radio Discussions' started by N8FVJ, Apr 11, 2019.

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  1. N8FVJ

    N8FVJ Ham Member QRZ Page

    The latest 11-year cycle of the sun is almost over and scientists have just released predictions for the next one.

    Based on the number of sunspots which formed, scientists considered the last solar cycle, number 24, “weak." They predict that the upcoming cycle, number 25, will be a little more intense, but still in the weak category.



    Lisa Upton, a solar physicist with Space Systems Research Corporation and co-chair of the panel issuing predictions, said cycle 25 should begin between mid-2019 and late 2020 and that it should reach its maximum between 2023 and 2026 when about 95 and 130 sunspots are projected. Average is between 140 and 220 sunspots.

    Cycle 24 peaked in April 2014 with 82 sunspots. Should Cycle 25 actually reach the predicted values, that would stem the trend of the past few cycles that showed a continued decline.

    The continued decline was worrisome to some space weather scientists in that it suggested a return to a lengthy “solar drought,” reminiscent of the Maunder Minimum period of 1645-1715. Records show the Sun was essentially spotless for this lengthy period, coinciding with the “Little Ice Age” in Europe and tickling the interest of scientists to wonder if there is a cause and effect relationship between solar behavior and earth’s climate.

    The prediction panel, in future work, will attempt to better understand the strength, timing, and location of sunspot formation across the sun’s hemispheres and the likelihood of solar flares and coronal mass ejections. These are blasts of charged particles off the sun which can disrupt satellite and radio communications and even power grids in extreme cases.

    Frank Hill, a physicist at the National Solar Observatory, detected measurements heralding the start of Cycle 25 about one year ago. The small sample of data available hampers the confidence of prediction, but he estimates Cycle 25 will commence around October 2019.

    The prediction of solar cycle behavior is very difficult. “We are not really ‘there’ on the underlying physics of the problem. It’s a bit like pin the tail on the donkey," said Scott McIntosh, a solar physicist at the National Center for Atmospheric Research.

    Solar scientists are most concerned about a major eruption from the sun which could cause substantial damage to electronic communication systems and power grids. Past history suggests such extreme events are possible.

    During the “Carrington event" in 1859, for example, the northern lights were seen as far south as Cuba and Hawaii according to historical accounts. The solar eruption “caused global telegraph lines to spark, setting fire to some telegraph offices,” NASA wrote. A similar event today would have the potential to cause serious damage to satellite communications and power grids.

    During weak cycles, such events are less likely but still possible.

    “While we are not predicting a particularly active Solar Cycle 25, violent eruptions from the sun can occur at any time,” said Doug Biesecker, a solar physicist at NOAA’s Space Weather Prediction Center, in a press release.

    In any cycle, strong or weak, the strongest solar storms are most likely at the solar maximum, which is projected between 2023 and 2026 in cycle 25.
    [​IMG]
    [​IMG]


    This consensus forecast was made public at the annual Space Weather Workshop last week, hosted by the National Oceanic and Atmospheric Administration’s Space Weather Prediction Center.

    Lisa Upton, a solar physicist with Space Systems Research Corporation and co-chair of the panel issuing predictions, said cycle 25 should begin between mid-2019 and late 2020 and that it should reach its maximum between 2023 and 2026 when about 95 and 130 sunspots are projected. Average is between 140 and 220 sunspots.

    Cycle 24 peaked in April 2014 with 82 sunspots. Should Cycle 25 actually reach the predicted values, that would stem the trend of the past few cycles that showed a continued decline.

    The continued decline was worrisome to some space weather scientists in that it suggested a return to a lengthy “solar drought,” reminiscent of the Maunder Minimum period of 1645-1715. Records show the Sun was essentially spotless for this lengthy period, coinciding with the “Little Ice Age” in Europe and tickling the interest of scientists to wonder if there is a cause and effect relationship between solar behavior and earth’s climate.

    The prediction panel, in future work, will attempt to better understand the strength, timing, and location of sunspot formation across the sun’s hemispheres and the likelihood of solar flares and coronal mass ejections. These are blasts of charged particles off the sun which can disrupt satellite and radio communications and even power grids in extreme cases.

    Frank Hill, a physicist at the National Solar Observatory, detected measurements heralding the start of Cycle 25 about one year ago. The small sample of data available hampers the confidence of prediction, but he estimates Cycle 25 will commence around October 2019.

    The prediction of solar cycle behavior is very difficult. “We are not really ‘there’ on the underlying physics of the problem. It’s a bit like pin the tail on the donkey," said Scott McIntosh, a solar physicist at the National Center for Atmospheric Research.

    Solar scientists are most concerned about a major eruption from the sun which could cause substantial damage to electronic communication systems and power grids. Past history suggests such extreme events are possible.

    During the “Carrington event" in 1859, for example, the northern lights were seen as far south as Cuba and Hawaii according to historical accounts. The solar eruption “caused global telegraph lines to spark, setting fire to some telegraph offices,” NASA wrote. A similar event today would have the potential to cause serious damage to satellite communications and power grids.

    During weak cycles, such events are less likely but still possible.

    “While we are not predicting a particularly active Solar Cycle 25, violent eruptions from the sun can occur at any time,” said Doug Biesecker, a solar physicist at NOAA’s Space Weather Prediction Center, in a press release.

    In any cycle, strong or weak, the strongest solar storms are most likely at the solar maximum, which is projected between 2023 and 2026 in cycle 25. Pete Riley, a scientist with Predictive Science Inc. said at the recent workshop that the probability of a “Carrington Event” during solar minimum is about 1.4 percent, whereas during solar maximum it balloons to about 28 percent.

    The Cycle 25 prediction panel will continue its work and periodically update its forecasts.
     
  2. W4IOA

    W4IOA Ham Member QRZ Page

    We're all doomed.
     
    WZ7U and KA4DPO like this.
  3. KP4SX

    KP4SX XML Subscriber QRZ Page

  4. W3MMM

    W3MMM Ham Member QRZ Page

    I will call in sick for the 2023-2026 peak.
     
    WZ7U, KE4YOG, KC8YLT and 3 others like this.
  5. K7MH

    K7MH Ham Member QRZ Page

    I gotta go dig up enough parts to turn my 2 element quad into a 6 element quad.
     
    W4IOA likes this.
  6. K7MH

    K7MH Ham Member QRZ Page

    masked-singer-fox.jpg
     
    KC8VWM likes this.
  7. W4NNF

    W4NNF XML Subscriber QRZ Page

    Sorry...it appears Maunder Minimum II is not upon us. Maybe the doom and gloomers can go back to worrying about EMP... :p
     
    W4IOA likes this.
  8. W4IOA

    W4IOA Ham Member QRZ Page

    They'll be sorely disappointed when 10m dxcc is possible on a vertical. It might only be for a brief time but I have no doubt it'll happen......when I'm out of town.
     
    W4NNF, KE4YOG and AC8UN like this.
  9. K1VSK

    K1VSK Ham Member QRZ Page

    And we all know how precise predictions are:cool:
     
    K7MH and KC8VWM like this.
  10. NL7W

    NL7W Premium Subscriber QRZ Page

    Good luck with that! From the above article, which isn't referenced:

    "The prediction of solar cycle behavior is very difficult. “We are not really ‘there’ on the underlying physics of the problem. It’s a bit like pin the tail on the donkey," said Scott McIntosh, a solar physicist at the National Center for Atmospheric Research."

    We'll know soon enough, won't we. ;)
     

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