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uk.sci.weather (UK Weather) (uk.sci.weather) For the discussion of daily weather events, chiefly affecting the UK and adjacent parts of Europe, both past and predicted. The discussion is open to all, but contributions on a practical scientific level are encouraged. |
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#1
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Yes I know its a weather NG but be fair, others post about these
topics all the time, Anyhow it would seem the Arctic ice extent is at its greatest on this date for eight years! Have a look for yourself http://www.ijis.iarc.uaf.edu/en/home/seaice_extent.htm. Okay there will be the 'its first year ice ' comments and such but lets be honest about the ice, rumours of its death seem to have been greatly exaggerated. Take the polar bears of suicide watch. |
#2
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On Apr 20, 10:48*pm, wrote:
Yes I know its a weather NG but be fair, others post about these topics all the time, Anyhow it would seem the Arctic ice extent is at its greatest on this date for eight years! Have a look for yourself http://www.ijis.iarc.uaf.edu/en/home/seaice_extent.htm. Okay there will be the 'its first year ice ' comments and such but lets be honest about the ice, rumours of its death seem to have been greatly exaggerated. Take the polar bears of suicide watch. It could be just a blip in the general trend, nothing works to a perfect rhythm, so I'm not convinced. The past 12 months the UK has seen quite a number of cooler months, but my gut feeling is we've seen the last of them for a while, infact April is looking particularly warmer than average, but we will have to see what the summer brings, but I wouldn't be surprised to see higher temperatures again. Even a massive volcanic eruption would only slow the trend down for a year or two. Keith (Southend) http://www.southendweather.net "Weather Home & Abroad" |
#3
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On Mon, 20 Apr 2009 at 15:03:18, "Keith (Southend)G"
wrote in uk.sci.weather : It could be just a blip in the general trend, nothing works to a perfect rhythm, so I'm not convinced. The past 12 months the UK has seen quite a number of cooler months, but my gut feeling is we've seen the last of them for a while, infact April is looking particularly warmer than average, but we will have to see what the summer brings, but I wouldn't be surprised to see higher temperatures again. Even a massive volcanic eruption would only slow the trend down for a year or two. I've heard that solar activity is the lowest for about a century, so that could well be overriding any man-made climate effects. -- Paul Hyett, Cheltenham (change 'invalid83261' to 'blueyonder' to email me) |
#4
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On 21 Apr, 08:09, Paul Hyett wrote:
On Mon, 20 Apr 2009 at 15:03:18, "Keith (Southend)G" wrote in uk.sci.weather : It could be just a blip in the general trend, nothing works to a perfect rhythm, so I'm not convinced. The past 12 months the UK has seen quite a number of cooler months, but my gut feeling is we've seen the last of them for a while, infact April is looking particularly warmer than average, but we will have to see what the summer brings, but I wouldn't be surprised to see higher temperatures again. Even a massive volcanic eruption would only slow the trend down for a year or two. I've heard that solar activity is the lowest for about a century, so that could well be overriding any man-made climate effects. -- Paul Hyett, Cheltenham (change 'invalid83261' to 'blueyonder' to email me) Yes, I just found this on the BBC website: Scientists warn sun has dimmed http://news.bbc.co.uk/1/hi/sci/tech/8009492.stm An interesting peice of the puzzle. Keith (Southend) http://www.southendweather.net "Weather Home & Abroad" |
#5
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On 21 Apr, 08:17, "Keith (Southend)G"
wrote: On 21 Apr, 08:09, Paul Hyett wrote: On Mon, 20 Apr 2009 at 15:03:18, "Keith (Southend)G" wrote in uk.sci.weather : It could be just a blip in the general trend, nothing works to a perfect rhythm, so I'm not convinced. The past 12 months the UK has seen quite a number of cooler months, but my gut feeling is we've seen the last of them for a while, infact April is looking particularly warmer than average, but we will have to see what the summer brings, but I wouldn't be surprised to see higher temperatures again. Even a massive volcanic eruption would only slow the trend down for a year or two. I've heard that solar activity is the lowest for about a century, so that could well be overriding any man-made climate effects. -- Paul Hyett, Cheltenham (change 'invalid83261' to 'blueyonder' to email me) Yes, I just found this on the BBC website: Scientists warn sun has dimmedhttp://news.bbc.co.uk/1/hi/sci/tech/8009492.stm An interesting peice of the puzzle. Keith (Southend)http://www.southendweather.net "Weather Home & Abroad"- Hide quoted text - - Show quoted text - Now if this doesn't bring a long hot dry summer, I'll "Eat my hat" ;-) http://newsvote.bbc.co.uk/1/hi/uk/8010322.stm Keith (Southend) |
#6
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On 21 Apr, 14:48, "Keith (Southend)G"
wrote: On 21 Apr, 08:17, "Keith (Southend)G" wrote: On 21 Apr, 08:09, Paul Hyett wrote: On Mon, 20 Apr 2009 at 15:03:18, "Keith (Southend)G" wrote in uk.sci.weather : It could be just a blip in the general trend, nothing works to a perfect rhythm, so I'm not convinced. The past 12 months the UK has seen quite a number of cooler months, but my gut feeling is we've seen the last of them for a while, infact April is looking particularly warmer than average, but we will have to see what the summer brings, but I wouldn't be surprised to see higher temperatures again. Even a massive volcanic eruption would only slow the trend down for a year or two. I've heard that solar activity is the lowest for about a century, so that could well be overriding any man-made climate effects. -- Paul Hyett, Cheltenham (change 'invalid83261' to 'blueyonder' to email me) Yes, I just found this on the BBC website: Scientists warn sun has dimmedhttp://news.bbc.co.uk/1/hi/sci/tech/8009492.stm An interesting peice of the puzzle. Keith (Southend)http://www.southendweather.net "Weather Home & Abroad"- Hide quoted text - - Show quoted text - Now if this doesn't bring a long hot dry summer, I'll "Eat my hat" ;-) http://newsvote.bbc.co.uk/1/hi/uk/8010322.stm Keith (Southend) Did anybody see the article in the Daily Telegraph today (Tues)? Lord Stern, apparently an 'expert', has written a new book on global warming. According to the DT he states that temperatures may rise by 6C (DT slips in 43F!!!!) and alligators could live at the North Pole! I guess average temps at the NP in Winter are around -40 degs and about zero in mid Summer. So those lucky old 'gators are going to have fun at -34 degs in Winter and will be getting heat stroke in balmy temperatures of 6 degs in Summer! No wonder there are sceptics like me around when such total rubbish is being fed to the press..... |
#7
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On Apr 21, 8:09*am, Paul Hyett wrote:
On Mon, 20 Apr 2009 at 15:03:18, "Keith (Southend)G" wrote in uk.sci.weather : It could be just a blip in the general trend, nothing works to a perfect rhythm, so I'm not convinced. The past 12 months the UK has seen quite a number of cooler months, but my gut feeling is we've seen the last of them for a while, infact April is looking particularly warmer than average, but we will have to see what the summer brings, but I wouldn't be surprised to see higher temperatures again. Even a massive volcanic eruption would only slow the trend down for a year or two. I've heard that solar activity is the lowest for about a century, so that could well be overriding any man-made climate effects. -- Paul Hyett, Cheltenham (change 'invalid83261' to 'blueyonder' to email me) How much of a correlation is there between solar activity, i.e. sunspots and solar flares etc, and solar output. No-one ever seems to explain this and I have a suspicion that there is lot more to it than merely assuming the sun is hotter when it is active, i.e. spotty, and cooler when quiescent. The coincidence of the Maunder Minimum and a particularly cold period in Europe may be no more than that, a coincidence. It was not possible to measure solar output in the 17th century but are there any modern measurements that show that the sun could have been cooler? Should we assume that fewer spots equals dimmer? Tudor Hughes, Warlingham, Surrey. |
#8
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![]() * * * * How much of a correlation is there between solar activity, i.e. sunspots and solar flares etc, and solar output. *No-one ever seems to explain this and I have a suspicion that there is lot more to it than merely assuming the sun is hotter when it is active, i.e. spotty, and cooler when quiescent. *The *coincidence of the Maunder Minimum and a particularly cold period in Europe may be no more than that, a coincidence. *It was not possible to measure solar output in the 17th century but are there any modern measurements that show that the sun could have been cooler? *Should we assume that fewer spots equals dimmer? Tudor Hughes, Warlingham, Surrey. It was thought in the 20th Century that since sunspots are dark then more of them would mean less radiation and a cooler world. But that seems to be the converse of the truth. The Maunder Minimum, a name chosen for its alliteration, was given as an example of why less sunspots means a cooler world. The idea that the radiation from the sun is a constant (solar constant) is based on an 18th Century concept that God created the world and then let it like run a clockwork machine, al la Newton. Cheers, Alastair. |
#9
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The idea that the radiation from the sun is a constant (solar
constant) is based on an 18th Century concept that God created the world and then let it like run a clockwork machine, al la Newton. Cheers, Alastair. I'm not sure that your reference to Newton is correct Alastair. AFAIK he believed specifically in intervention rather than a purely docetist view (e.g.comets). I get rather concerned with the factuality of sweeping generalisations as to the origins of scientific understanding, much as some of the origins of language can at times be ambiguous. Cheers -- James Brown |
#10
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On Apr 23, 1:33*am, Alastair wrote:
* * * * How much of a correlation is there between solar activity, i.e. sunspots and solar flares etc, and solar output. *No-one ever seems to explain this and I have a suspicion that there is lot more to it than merely assuming the sun is hotter when it is active, i.e. spotty, and cooler when quiescent. *The *coincidence of the Maunder Minimum and a particularly cold period in Europe may be no more than that, a coincidence. *It was not possible to measure solar output in the 17th century but are there any modern measurements that show that the sun could have been cooler? *Should we assume that fewer spots equals dimmer? Tudor Hughes, Warlingham, Surrey. It was thought in the 20th Century that since sunspots are dark then more of them would mean less radiation and a cooler world. *But that seems to be the converse of the truth. *The Maunder Minimum, a name chosen for its alliteration, was given as an example of why less sunspots means a cooler world. The idea that the radiation from the sun is a constant (solar constant) is based on an 18th Century concept that God created the world and then let it like run a clockwork machine, al la Newton. Cheers, Alastair. That hardly answers my question. Is there any *independent* corroboration of a reduced solar output during 1645-1715? In any case a climatic deterioration had set in well before the Maunder Minimum. As far as I know there is no verification of the sun's output being reduced during that period and futhermore it seems that there is very little variation in solar output during a solar cycle or from one cycle to the next, regardless of its intensity. It would be nice if someone could confirm this, or deny it, come to that. This is like trying to get blood out of a stone and there seems to be widespread ignorance and confusion on the issue. Tudor Hughes, Warlingham, Surrey. |
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