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The sun is dead!! Mini iceage???

11314151618

Comments

  • Registered Users Posts: 1,525 ✭✭✭SeaBreezes



    From zharkovas paper(2014):

    https://www.researchgate.net/publication/266799418_Prediction_of_Solar_Activity_from_Solar_Background_Magnetic_Field_Variations_in_Cycles_21-23

    predictions of reduced sunspot numbers compared to cycle 24: 80% in cycle 25 and 40% in cycle 26.


  • Registered Users Posts: 700 ✭✭✭bazlers


    Well I guess that's it for 2019 281 spotless. (77%)
    Roll on 2020 and we will see how quick or how late the next cycles kicks in...

    Spotless Days
    Current Stretch: 4 days
    2019 total: 281 days (77%)
    2018 total: 221 days (61%)
    2017 total: 104 days (28%)
    2016 total: 32 days (9%)
    2015 total: 0 days (0%)
    2014 total: 1 day (<1%)
    2013 total: 0 days (0%)
    2012 total: 0 days (0%)
    2011 total: 2 days (<1%)
    2010 total: 51 days (14%)
    2009 total: 260 days (71%)
    2008 total: 268 days (73%)
    2007 total: 152 days (42%)
    2006 total: 70 days (19%)
    Updated 31 Dec 2019


  • Posts: 31,118 ✭✭✭✭ [Deleted User]


    New Year, New cycle 25 sunspot, looks like it won't be around for too long.
    The transition between cycles is well underway now.


  • Registered Users, Registered Users 2 Posts: 14,584 ✭✭✭✭M.T. Cranium


    The comparisons to the Maunder have always seemed to miss the more obvious parallel, the Dalton minimum.

    Check out this comparison of sunspot cycles:

    1778 very strong peak ___ 1989 strong peak

    1787 moderately strong long-lasting peak ___ 1999-2001 same

    1801-04 rather weak peak _______________ 2012-14 quite weak

    1809-11 long solar quiet _________________ 2018-19 very quiet sun

    1815-16 weak peak _____________________ 2025 weak peak ?

    1829-30 another weak solar max

    1837-38 resumption of strong solar activity

    (1848-70 three strong peaks)

    Then a third minimum began. I have copied the above and inserted the data for that less referenced solar downturn.

    1778 very strong peak ___ (1860) 1989 strong peak (Carrington event 1859, Quebec solar storm power outage 1989)

    1787 moderately strong long-lasting peak (1870) ___ 1999-2001 same

    1801-04 rather weak peak (1883) _______________ 2012-14 quite weak

    1809-11 long solar quiet (1889-90)______________ 2018-19 very quiet sun

    1815-16 weak peak __ (1893 mod weak peak) ____ 2025 weak peak ?

    1829-30 another weak solar max (1905-07 weak) __ ??

    1837-38 resumption of strong solar activity __ 1917 resumption of strong solar activity

    1848,60,70 strong peaks _________________ (more strong peaks in 20th c, 1928,37,47,57,68,79, 89)

    ______________________________

    Rather similar timing and cadence in all three cases (so far with the recent one). Also similar -- Tamboro's eruption at weak peak April 1815 and Krakatoa in 1883. Although different peaks in the analogy, seems like quite a coincidence and one wonders what might erupt in 2025 as we have dodged this bullet of a major dust veil producer thus far in the recent minimum.


  • Posts: 31,118 ✭✭✭✭ [Deleted User]


    Yes, I am also of the opinion that a Dalton type minimum is more likely, and not just because it is the maternal family name. ;)
    The 200 year pattern looks like it's repeating rather than the 400 year one that is less detailed due to it being based on reconstructions as opposed to actual observations.


  • Registered Users Posts: 700 ✭✭✭bazlers


    "Rather similar timing and cadence in all three cases (so far with the recent one). Also similar -- Tamboro's eruption at weak peak April 1815 and Krakatoa in 1883. Although different peaks in the analogy, seems like quite a coincidence and one wonders what might erupt in 2025 as we have dodged this bullet of a major dust veil producer thus far in the recent minimum"

    The next eruption I think will occur around then or possibly before will be Katla. It is over due anyhow.
    Not sure if it will be big enough to effect on a global scale but certainly our neck of the woods.


  • Registered Users Posts: 1,525 ✭✭✭SeaBreezes


    Looking at Dr. Ned Nikolov twitter I see:

    https://mobile.twitter.com/NikolovScience/status/1213553938798006272

    He says:
    The predicted solar grand minimum around 2050 is not likely to have a TSI reduction of 8 W m-2, but 1.5-2 W m-2 is possible.
    A key point to remember is that TSI changes only slightly affect Global Temp., because the temp. sensitivity to TSI is just 0.053 K/(W m-2).


  • Registered Users Posts: 1,525 ✭✭✭SeaBreezes


    https://tallbloke.wordpress.com/2019/07/14/nasa-goes-with-low-solar-cycle-25-prediction-30-50-lower-than-cycle-24/#comments
    The maximum of this next cycle – measured in terms of sunspot number, a standard measure of solar activity level – could be 30 to 50% lower than the most recent one.
    The new research was led by Irina Kitiashvili, a researcher with the Bay Area Environmental Research Institute at NASA’s Ames Research Center, in California’s Silicon Valley

    (Though they got the last cycle prediction spectacularly wrong)
    There's an interesting discussion in the comments section..

    Leif Svalgaard predicted that cycle 25 would be higher than 24, but lower than cycle 20.

    And I've already posted Zharakovas prediction..


  • Posts: 0 [Deleted User]


    Confirmation bias ahead but has there been an upswing in volcanic eruptions this past few months? Or just been reported on more?


  • Registered Users Posts: 1,985 ✭✭✭BLIZZARD7


    After a flurry of activity early in the year the Sun has gone all quiet again -

    Spotless Days
    Current Stretch: 13 days
    2020 total: 16 days (67%)
    2019 total: 281 days (77%)
    2018 total: 221 days (61%)
    2017 total: 104 days (28%)
    2016 total: 32 days (9%)
    2015 total: 0 days (0%)
    2014 total: 1 day (<1%)
    2013 total: 0 days (0%)
    2012 total: 0 days (0%)
    2011 total: 2 days (<1%)
    2010 total: 51 days (14%)
    2009 total: 260 days (71%)
    2008 total: 268 days (73%)
    2007 total: 152 days (42%)
    2006 total: 70 days (19%)
    Updated 24 Jan 2020


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  • Posts: 31,118 ✭✭✭✭ [Deleted User]


    Just a little reminder that we are still in the transition phase between cycles.


    spaceweather.com



    TWO SOLAR CYCLES ACTIVE AT ONCE: Today, there are two active regions on the surface of the sun, places where strong magnetic fields are bubbling up from below. The magnetic polarity of the regions reveals something interesting: Two solar cycles are active at once. One region belongs to old Solar Cycle 24, the other to new Solar Cycle 25. This is normal. Solar cycles always overlap at their boundaries. It's just the latest sign that change is occurring on the sun. Aurora alerts: SMS Text.


  • Registered Users Posts: 52 ✭✭damino


    34 continous days without sunspots. 50 days so far this year.


  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    So is the sun waking up at all then ?


  • Posts: 31,118 ✭✭✭✭ [Deleted User]


    So is the sun waking up at all then ?
    Yes it is, cycle 25 is revving up in the background.
    Over the past few months, there have been several cycle 25 sunspots, but they are very weak. Cycle 24 is still throwing up the odd sunspot from time to time as well because there is an overlap of several years that matches the solar minimum.


  • Posts: 31,118 ✭✭✭✭ [Deleted User]


    A new sunspot from cycle 25 has appeared.
    I suspect that many of these smaller ones wouldn't have been recorded during the Maunder minimum.
    hmi1898.gif


  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    A new sunspot from cycle 25 has appeared.
    I suspect that many of these smaller ones wouldn't have been recorded during the Maunder minimum.
    hmi1898.gif

    Would they have had the ability to see in such detail as they have today ? could have easily been missed.


  • Registered Users Posts: 700 ✭✭✭bazlers


    Dolanbaker, do you think sunspots will kick into action soon or are will likely to see repeat of 2019?


  • Posts: 31,118 ✭✭✭✭ [Deleted User]


    I expect that we will see the odd small sunspot from the next cycle from time to time, if the predictions are correct there will be more than last year, but only just.
    All the indications so far seem to show that cycle 25 will be far weaker than cycle 24.

    As it is, we've matched the percentage of spotless days as last year now.
    Sunspot number: 0
    What is the sunspot number?
    Updated 26 Mar 2020

    Spotless Days
    Current Stretch: 16 days
    2020 total: 66 days (77%)
    2019 total: 281 days (77%)
    2018 total: 221 days (61%)
    2017 total: 104 days (28%)
    2016 total: 32 days (9%)
    2015 total: 0 days (0%)
    2014 total: 1 day (<1%)

    EDIT: current forecast from NOAA
    https://www.swpc.noaa.gov/news/solar-cycle-25-forecast-update

    Solar Cycle 25 Forecast Update
    published: Monday, December 09, 2019 22:30 UTC

    The NOAA/NASA co-chaired, international panel to forecast Solar Cycle 25 released their latest forecast for Solar Cycle 25. The forecast consensus: a peak in July, 2025 (+/- 8 months), with a smoothed sunspot number (SSN) of 115. The panel agreed that Cycle 25 will be average in intensity and similar to Cycle 24.

    Additionally, the panel concurred that solar minimum between Cycles 24 and 25 will occur in April, 2020 (+/- 6 months). If the solar minimum prediction is correct, this would make Solar Cycle 24 the 7th longest on record (11.4 years).


  • Posts: 31,118 ✭✭✭✭ [Deleted User]


    Well we're now in the most spotless year of the space age, according to the way spaceweather.com records the sunspots anyway.

    Sunspot number: 0
    What is the sunspot number?
    Updated 29 Mar 2020

    Spotless Days
    Current Stretch: 19 days
    2020 total: 69 days (78%)
    2019 total: 281 days (77%)
    2018 total: 221 days (61%)
    2017 total: 104 days (28%)
    2016 total: 32 days (9%)
    2015 total: 0 days (0%)
    2014 total: 1 day (<1%)
    2013 total: 0 days (0%)
    2012 total: 0 days (0%)
    2011 total: 2 days (<1%)
    2010 total: 51 days (14%)
    2009 total: 260 days (71%)
    2008 total: 268 days (73%)
    2007 total: 152 days (42%)
    2006 total: 70 days (19%)
    Updated 29 Mar 2020


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  • Registered Users Posts: 1,525 ✭✭✭SeaBreezes


    https://www.longdom.org/open-access/sunspot-cycle-minima-and-pandemics-the-case-for-vigilance-2332-2519-1000159.pdf

    Came accross this paper, linking pandemics and the sun.
    Because of current events, thought you may be interested..


  • Registered Users, Registered Users 2 Posts: 18,666 ✭✭✭✭silverharp


    A belief in gender identity involves a level of faith as there is nothing tangible to prove its existence which, as something divorced from the physical body, is similar to the idea of a soul. - Colette Colfer



  • Registered Users, Registered Users 2 Posts: 11,764 ✭✭✭✭Say my name


    silverharp wrote: »

    Since the krakatoa volcano has been mentioned there's also increased activity being recorded in Iceland.


  • Posts: 31,118 ✭✭✭✭ [Deleted User]


    Strange, we seem to have been stuck on 77% for about a week now and zero sunspots.

    spaceweather.com
    Sunspot number: 0
    What is the sunspot number?
    Updated 24 Apr 2020

    Spotless Days
    Current Stretch: 19 days
    2020 total: 89 days (77%)
    2019 total: 281 days (77%)
    2018 total: 221 days (61%)
    2017 total: 104 days (28%)
    2016 total: 32 days (9%)


  • Registered Users, Registered Users 2 Posts: 28,304 ✭✭✭✭blanch152


    Strange, we seem to have been stuck on 77% for about a week now and zero sunspots.

    spaceweather.com

    89/115 is 77.39%
    88/114 is 77.19%
    87/113 is 76.99%
    86/112 is 76.78%
    85/111 is 76.57%

    So for five days in a row, rounding would give 77%.


  • Posts: 31,118 ✭✭✭✭ [Deleted User]


    blanch152 wrote: »
    89/115 is 77.39%
    88/114 is 77.19%
    87/113 is 76.99%
    86/112 is 76.78%
    85/111 is 76.57%

    So for five days in a row, rounding would give 77%.
    Just goes to show why resetting the counters at the start of the year is so inaccurate.
    It really should be a rolling average over a set number of days.


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  • Posts: 31,118 ✭✭✭✭ [Deleted User]


    Mathematically, according to spaceweather, we are now officially in the deepest solar minimum since the start of the "space age".


  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    Could explain why we haven't had the "April Showers" we used to always have up to about 2 or 3 years ago. Sunshine and downpours.

    Could explain why now we get winter and straight to Summer.

    When you want to fertilise the lawn ye can't because there's no bloody rain! :D


  • Posts: 31,118 ✭✭✭✭ [Deleted User]


    Not exactly sunspot related, but still a good video (robbed from cool vids & Pics forum)

    https://twitter.com/i/status/1261182070065451009


  • Posts: 0 [Deleted User]


    Not exactly sunspot related, but still a good video (robbed from cool vids & Pics forum)

    https://twitter.com/i/status/1261182070065451009




    What speed is that travelling at!


  • Registered Users Posts: 822 ✭✭✭lapua20grain




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  • Registered Users, Registered Users 2 Posts: 3,633 ✭✭✭Pa ElGrande


    Magnetometeorology: Relationships Between the Weather and Earth's Magnetic Field.
    If Earth's magnetic field influences' meteorological phenomena, long-term changes in the geomagnetic field should produce corresponding changes in climate. Figure 2 shows, in the upper section, the variation of the magnetic inclination at Paris since about 700 A.D. The lower section shows 50-yr averages of the temperatures prevailing in central England since about 900 A.D. These two sets of data exhibit similar variations. The"Little Ice Age" (Lamb, 1966) that occurred in Britain during the period 1550 to 1850 A.D. is clearly associated with an epoch of high magnetic particles, it does point to the need for further studies of this kind.

    source


    Satellites and spacecraft malfunction as Earth's magnetic field mysteriously weakens
    Scientists are finding that the weakening is causing technical problems for satellites, and seems to be growing in its effects.

    Earth's magnetic field, which is vital to protecting life on our planet from solar radiation, is mysteriously weakening.

    On average the planet's magnetic field has lost almost 10% of its strength over the last two centuries, but there is a large localised region of weakness stretching from Africa to South America.

    Known as the South Atlantic Anomaly, the field strength in this area has rapidly shrunk over the past 50 years just as the area itself has grown and moved westward.

    source

    Net Zero means we are paying for the destruction of our economy and society in pursuit of an unachievable and pointless policy.



  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    I remember watching a Documentary on this years ago, amazing to be actually live in this time.

    So much could influence the Earths climate too such as this and the low solar activity and I really feel the Climatologists and their Global warming religion is just way too narrow minded with Co2 this and Co2 that.

    Though in areas with a weak magnetic field could see a much greater instance of skin cancer.


  • Posts: 31,118 ✭✭✭✭ [Deleted User]


    I remember watching a Documentary on this years ago, amazing to be actually live in this time.

    So much could influence the Earths climate too such as this and the low solar activity and I really feel the Climatologists and their Global warming religion is just way too narrow minded with Co2 this and Co2 that.

    Though in areas with a weak magnetic field could see a much greater instance of skin cancer.
    CO2 is just an indicator that CO2 is being produced faster than it is being absorbed, nothing more than that really.

    The possible affects of a deep solar minimum are becoming clearer as noted in previous posts, one other factor is the weakening magnetic field has been to allow more radiation to penetrate further into the upper atmosphere and changing cloud formation as well as having what appears to be a stabilising affect on the jet stream.

    During the last minimum around 2010, we had two extended periods of stable Arctic jet-stream which resulted on two extended periods of excessively cold weather.

    We have just come to the end of a longer than usual period of warm weather.


    Could we see an extended period of Arctic air this winter?


  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    CO2 is just an indicator that CO2 is being produced faster than it is being absorbed, nothing more than that really.

    The possible affects of a deep solar minimum are becoming clearer as noted in previous posts, one other factor is the weakening magnetic field has been to allow more radiation to penetrate further into the upper atmosphere and changing cloud formation as well as having what appears to be a stabilising affect on the jet stream.

    During the last minimum around 2010, we had two extended periods of stable Arctic jet-stream which resulted on two extended periods of excessively cold weather.

    We have just come to the end of a longer than usual period of warm weather.


    Could we see an extended period of Arctic air this winter?

    Well we could have seen it this year if the recent high had have been in November - February. Except we got battered with low after low with tonnes of rain and hardly any rain here where I am since March.


  • Registered Users, Registered Users 2 Posts: 18,666 ✭✭✭✭silverharp


    only a sample of one but given that "plagues" of locusts seem to be thing this year, there also was one in 2010 that was record breaking. Could be nothing, maybe some country every year has the worst plague evar or might they be tied in weather shifts brought on by changes in solar output?

    https://www.independent.co.uk/environment/nature/australia-faces-worst-plague-of-locusts-in-75-years-2089919.html
    Australia faces worst plague of locusts in 75 years
    Ideal breeding conditions for grasshoppersare expected to cost farmers billions
    By Paul Rodgers
    Sunday 26 September 2010 00:00

    A belief in gender identity involves a level of faith as there is nothing tangible to prove its existence which, as something divorced from the physical body, is similar to the idea of a soul. - Colette Colfer



  • Closed Accounts Posts: 2,655 ✭✭✭i57dwun4yb1pt8


    SeaBreezes wrote: »
    Scot Chapman walks through the Grand Solar Min, and its effects on the Heliosphere and Volcanoes and the earth in general in this video.
    Its really well done, I find it interesting.

    But a cup of tea and settle in to watch video, Enjoy!:

    https://www.youtube.com/watch?v=wqGVJWC-l-E&t=1484s

    sh1t , , this is not good in any way


  • Registered Users Posts: 27 Ckit1


    Recent timelapse video from NASA - 'A Decade of Sun' - 2010~2020

    Interesting to watch (sped up) the quiet sun firing up, during the middle years of the decade, until it moderates again towards the recent/imminent solar minimum.

    https://youtu.be/l3QQQu7QLoM
    l3QQQu7QLoM


  • Registered Users, Registered Users 2 Posts: 18,666 ✭✭✭✭silverharp


    hmmm! , I don't know how unusual this is, but this southern Norway not the Artic, similar latitude to the Orkney Islands, is the Sun broken?

    https://twitter.com/ZdenekNejedly/status/1279109846370004995

    A belief in gender identity involves a level of faith as there is nothing tangible to prove its existence which, as something divorced from the physical body, is similar to the idea of a soul. - Colette Colfer



  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    You’d know if it was hot and unusual the media would be all over it but cold events are not news worthy.


  • Registered Users, Registered Users 2 Posts: 4,647 ✭✭✭beggars_bush


    The sudden global reduction of carbon emissions since March will have an effect on the atmosphere


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  • Registered Users, Registered Users 2 Posts: 2,855 ✭✭✭Nabber


    The sudden global reduction of carbon emissions since March will have an effect on the atmosphere

    What sort of effect?


  • Posts: 31,118 ✭✭✭✭ [Deleted User]


    The sudden global reduction of carbon emissions since March will have an effect on the atmosphere
    I don't know about "carbon emissions", but, particulate pollution dropped dramatically in many urban areas resulting is a vast improvement in air quality when the lockdown happened.


    Global CO2 levels have hardly moved, local levels measured at street level did (briefly) drop.


    The reduction in air travel would have had the greatest affects on the upper atmosphere as there would be far fewer aircraft seeding contrails.


  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    I would be far more concerned with all the plastic entering the Oceans and the food chain than some CO2 in the Atmosphere + the PM 2.5 from Diesel exhaust, this is having a much greater impact with no sign of the Government tackling this by reducing tax on Petrol and making Diesel much more expensive and also new diesel cars, they still have a Co2 based tax system and this is ridiculous as Co2 is a non toxic gas in the environment and harmless to human health and good for plants, trees etc but oh no they still allow new diesel cars with no extra taxes and penalise the Person buying the cleaner Petrol car, you couldn't make the sh1t up if you tried.

    The Global temps have hardly moved in relation to increased Co2, sure weather patterns have changed somewhat but this can be linked to past solar minimum and I expect we will see more and more chaotic weather events the longer the Sun sleeps.


  • Registered Users, Registered Users 2 Posts: 2,855 ✭✭✭Nabber


    I would be far more concerned with all the plastic entering the Oceans and the food chain than some CO2 in the Atmosphere + the PM 2.5 from Diesel exhaust, this is having a much greater impact with no sign of the Government tackling this by reducing tax on Petrol and making Diesel much more expensive and also new diesel cars, they still have a Co2 based tax system and this is ridiculous as Co2 is a non toxic gas in the environment and harmless to human health and good for plants, trees etc but oh no they still allow new diesel cars with no extra taxes and penalise the Person buying the cleaner Petrol car, you couldn't make the sh1t up if you tried.

    The Global temps have hardly moved in relation to increased Co2, sure weather patterns have changed somewhat but this can be linked to past solar minimum and I expect we will see more and more chaotic weather events the longer the Sun sleeps.

    It's a system based on the efficiency of diesel vs petrol, the deficiency has changed with increased technology particularly in the hybrid market.

    France tried to change abbeit after people bought diesel as it was long touted as the lesser evil of combustion engines, I would say in general it wont be too easy for have a model shift from pro diesel to pro petrol.

    I'm against taxation to deter consumers, they generally tend to be a working class tax like tobacco and alcohol. If there is justified concern for the nations health then ban them.
    There is also no indication that tax deters consumers. Education and alternatives work a whole lot better.


  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    Nabber wrote: »
    It's a system based on the efficiency of diesel vs petrol, the deficiency has changed with increased technology particularly in the hybrid market.

    No it's not a system based on efficiency it's a system based on a tax created to make Ireland do what the rest of Europe were doing for fear of looking bad for not doing the same.
    Nabber wrote: »
    France tried to change abbeit after people bought diesel as it was long touted as the lesser evil of combustion engines, I would say in general it wont be too easy for have a model shift from pro diesel to pro petrol.

    You're correct it won't be as easy because it would mess everything up, first tax was based on ending CC, next on Co2 and to change it to proper pollution tax would mean another change. So the best way is to electrification, as an ev owner for 5 and a half years I wouldn't go back to Petrol or Diesel again, the range is good enough now, 400 odd kms is the new norm from 100 Kms back in 2011. The cost needs to come down more + there needs to be more EV models to choose + there needs to be a lot more of the fast DC public chargers installed, the Government are not doing much here and the ESB are seriously dragging their heals.
    Nabber wrote: »
    I'm against taxation to deter consumers, they generally tend to be a working class tax like tobacco and alcohol. If there is justified concern for the nations health then ban them.
    There is also no indication that tax deters consumers. Education and alternatives work a whole lot better.

    Tax does change people's habits, for instance, over night when the Co2 tax system was introduced there was a substantial shift to much higher polluting diesel cars.

    Hybrids are fine but they are old tech, for instance, there is not much difference to Toyota's Hybrid system since 2004, they're still using tiny NiMh batteries, the greatest change has come from tweaking the ICE not from the hybrid system and their main source of power is still the ICE so they consume mostly Petrol.

    Electrics on the other hand can use the ever increasing amount of Green electricity on the grid + the electricity doesn't have to be refined from oil like Petrol and diesel which consumes a large amount of energy.

    We all know what VW did to fool people into thinking their Diesels were clean, of course this was much more of an issue in the USA where their emissions standards are far higher than in the E.U, it wasn't just VW of course, then we had the car tests, former NEDC which was a farce and allowed the car manufacturers build cars that were much higher polluting than should have been because the test system didn't reflect actual real driving.

    The Amount of PM 2.5 and Nox emissions from cars would be incredibly higher in the E.U than allowed in the USA if the car manufacturers selling cars in the E.U had to adhere to the same standards years ago diesels would have been banned years ago.

    So my gripe is that there is still nothing happening to stop the sale of these diesel cars in Ireland by making new Diesels taxed much higher, for instance, VRT on new diesels should reflect the fact that they are the most polluting form of transport available, tax on Petrol should be lowered and increased on Diesel.

    So many People buying new diesels to drive around town and cities which is the worst place and form of driving for Diesels when they are at their most inefficient and highest polluting.


  • Registered Users, Registered Users 2 Posts: 6,238 ✭✭✭Oneiric 3


    Running 365 day % total of spotless days since January 2000 to the end of June this year (2020)

    CgBZaRT.png

    To date, the highest running % value of the current 'cycle' peaked 84.4% between 27th and 30th May this year, while the top value in the previous event topped out at 80.8% in the last week of June 2009.

    Current value up to today (July 5th 2020) is 80.3% in a slightly falling trend.

    Data from: http://www.sidc.be/silso/home

    Edit: Date of graph should read January 2000 and not January 2020...

    New Moon



  • Moderators, Society & Culture Moderators Posts: 1,719 Mod ✭✭✭✭star gazer


    There are new images from the Solar Orbiter and they are looking at a new feature: "campfires".
    Solar_Orbiter_s_first_view_of_the_Sun_article.jpg
    The first images from Solar Orbiter, a new Sun-observing mission by ESA and NASA, have revealed omnipresent miniature solar flares, dubbed ‘campfires’, near the surface of our closest star.

    “The campfires are little relatives of the solar flares that we can observe from Earth, million or billion times smaller,” says David Berghmans of the Royal Observatory of Belgium (ROB), Principal Investigator of the EUI instrument, which takes high-resolution images of the lower layers of the Sun’s atmosphere, known as the solar corona. “The Sun might look quiet at the first glance, but when we look in detail, we can see those miniature flares everywhere we look.”
    “These campfires are totally insignificant each by themselves, but summing up their effect all over the Sun, they might be the dominant contribution to the heating of the solar corona,” says Frédéric Auchère, of the Institut d'Astrophysique Spatiale (IAS), France, Co-Principal Investigator of EUI.


  • Moderators, Society & Culture Moderators Posts: 1,719 Mod ✭✭✭✭star gazer


    For scale

    Solar_Orbiter_spots_campfires_on_the_Sun_annotated_article.jpg


  • Registered Users, Registered Users 2 Posts: 6,238 ✭✭✭Oneiric 3


    Running percentage of spotless days over the last year:

    zy5LvnZ.png

    Current 365 day % value is standing at a steady 73.2% but within a broader falling trend.

    New Moon



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  • Registered Users Posts: 1,717 ✭✭✭firemansam4


    We are officially into Solar Cycle 25 according to NOAA..

    https://www.weather.gov/news/201509-solar-cycle

    They state that solar minimum occurred in December 2019 and we are heading towards a solar maximum in 2025.

    They predict solar cycle 25 to be small but similar to solar cycle 24. They are not expecting there to be any Maunder type minimum approaching after that.

    But then again these solar predictions are very hard to make so anything is still possible in that respect, and we will probably know a lot more when this cycle progresses to see how right they are.


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