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Aurora & Sun Activity Resources Thread


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  • Location: CARDIFF
  • Location: CARDIFF

    The effects of solar flares on weather by NASA

    There is no known relationship between individual solar flares and weather. There is, however, evidence for a relationship between the solar activity cycle and global climate. The best known case is the correlation of a long period of solar inactivity called the Maunder Minimum (1645-1715) with the lowest temperatures recorded during the "Little Ice Age" that occurred from 1500 to 1850. Almost no spots were observed on the Sun during this period. There is evidence for the correlation of other periods of low solar activity with cooler temperatures on Earth as well.

    The temperature above the north pole in the stratosphere (about 10 km above the surface of the earth) appears to be correlated with the 11 year sunspot cycle. The stratospheric temperature above the pole is relatively warm or cool when the Sun is active, depending upon which way stratospheric winds are blowing above the equator. There are also other climatic effects that appear to be associated with the sunspot cycle.

    The physical mechanism responsible for these apparent correlations is not known. Until such a mechanism is found, the existence of a direct relationship between the solar cycle and climate will not be generally accepted.

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  • Location: CARDIFF
  • Location: CARDIFF

    Some one said

    Hello Ian, I must admit, I am a little suprised by your apparent dismissive attitude to solar activity.

    I understand the arguments that this may be more appropriate in another thread but at the end of the

    day, everything is inter related in this science. How many times have people mentioned the strat over the

    last week or so in this thread? This has been mentioned because of it's obvious effects on our weather and

    is understood more than solar activity but I would argue that the sun probably affects our weather more so.

    solar flares might be huge compared to earth, but they have very little energy in comparrison to what leaves the sun every second.

    The energy that does reach us is taken in the ionsphere and not effect the troposphere at all, Cumalatively there is some effect but anyone who thinks one flare will make or break our forecasted possible cold spell is living in fi. CME'S will not have huge effect either if they were to occur. CME and flares will effect the very outer parts of the atmosphere, beyond stratosphere with an aurora visible. Long term solar cycles can cause cooling and warming but we are really looking at a longterm trend. The current run of very active sun until cycle 23 was in my opinion a part of climate warming. But flares are common and alot of study has been done without evidence that a flare can cause any pattern change.

    Does the sun effect our weather ?

    of course it does, its the main factor, every day, but not with a single solar flare.

    Edited by pyrotech
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  • Location: Somerset midway between Bath&Wells. Mendips 200m asl
  • Weather Preferences: Snow and lots of it or warm and sunny, no mediocre dross
  • Location: Somerset midway between Bath&Wells. Mendips 200m asl

    Loads of info here on the Sun and the impact it has here on Earth, and our weather:

    http://www.met.reading.ac.uk/users/users/1353

    Also:

    http://news.bbc.co.uk/1/hi/8615789.stm

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