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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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#21
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![]() "Col" wrote in message ... Lawrence Jenkins wrote: Not any more Keith you need to understand that the cooling has set in in earnest the last several months. Don't forget local weather doesn't equate to objective globla measurement. If cooling has set in in earnest during the last few months it hasm't yet had an effect on Arctic sea ice which is looking pretty woeful at the moment. http://www.ijis.iarc.uaf.edu/en/home/seaice_extent.htm Yes I know this is a 'snapshot' at any one time driven by synoptics rather than climate change but I thought it worth mentioning as this graph is often used (misused?) by the deniers as 'evidence' when there is rather more ice than one might expect. I wonder that if this cooling is real, when we will see this graph trending to more ice. -- Col Bolton, Lancashire 160m asl Surely the Arctic ice is effect by NH synoptics, when there's major blocking with northerly's like recently exporting fridgid arctic air all the way down to western europe, eastern asia and the midwest to the eastern seaboard USA then warm air has to replace it. As Ian Currie mentioned recently it's as if you've left the fridge/freezer doors open. Cold frigid air pours out and warm air replaces it so before you jnow where you are your pork chops are defrosting. What goes up must come down. Lets face western Europe has just gone through an exceptional cold period and somewhere along the way the balance has to be paid. I did say in two posts that I was wondering whether this was some sort of error in the measurements and if not well then of course its only been over several days, never the less its hard to find such sharp dips in temperaure over the last 12 years as plotted by the surface layer ch04 http://discover.itsc.uah.edu/amsutem....csh?amsutemps |
#22
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![]() "Stewart Robert Hinsley" wrote in message ... In message om, Lawrence Jenkins writes "Keith (Southend)G" wrote in message ... On Dec 29, 10:36 pm, Dave Cornwell wrote: Lawrence Jenkins wrote: At first I thought this was a mistake, a quirk, but no there seems to have been a remarkable plunge in the near surface temperature record http://discover.itsc.uah.edu/amsutem....csh?amsutemps It is now lower for the 28th December 2010 than at any time since 1998; that is some drop that I've seen no one else predict bar Joe who has been proclaiming this would happen since this time last year. Surely he deserves some praise and not the petty treatment he gets here on many an occasion. -------------------- Well done Joe, unbelievable ;-) Dave I thought someone posted on here a while ago saying that globally 2010 was going to be the third warmest year on record, have I mistaken something? Keith (Southend) http://www.southendweather.net "Weather Home & Abroad" Not any more Keith you need to understand that the cooling has set in in earnest the last several months. If you look at your own source you'll see that there is an annual variation in global mean temperature. (This is a result of the greater proportion of land in the northern hemisphere, and hence greater hemispheric annual variation.) The cooling over the last several months is normal. Don't forget local weather doesn't equate to objective globla measurement. Also, don't forget that short term fluctuations don't equate to climate. In the specific case of the sharp fall in global temperatures over the recent past, I suspect that is in part due to the albedo effects of snow cover at lower latitudes. http://climate.rutgers.edu/snowcover...r=2010&ui_day= 358&ui_set=2 -- Stewart Robert Hinsley Yes albedo possibly but that iself is seen as a major factor in warming or cooling, its part of the mechansim. |
#23
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![]() "Keith (Southend)G" wrote in message ... On Dec 30, 9:11 am, Stewart Robert Hinsley wrote: In message om, Lawrence Jenkins writes "Keith (Southend)G" wrote in message ... On Dec 29, 10:36 pm, Dave Cornwell wrote: Lawrence Jenkins wrote: At first I thought this was a mistake, a quirk, but no there seems to have been a remarkable plunge in the near surface temperature record http://discover.itsc.uah.edu/amsutem....csh?amsutemps It is now lower for the 28th December 2010 than at any time since 1998; that is some drop that I've seen no one else predict bar Joe who has been proclaiming this would happen since this time last year. Surely he deserves some praise and not the petty treatment he gets here on many an occasion. -------------------- Well done Joe, unbelievable ;-) Dave I thought someone posted on here a while ago saying that globally 2010 was going to be the third warmest year on record, have I mistaken something? Keith (Southend) http://www.southendweather.net "Weather Home & Abroad" Not any more Keith you need to understand that the cooling has set in in earnest the last several months. If you look at your own source you'll see that there is an annual variation in global mean temperature. (This is a result of the greater proportion of land in the northern hemisphere, and hence greater hemispheric annual variation.) The cooling over the last several months is normal. Don't forget local weather doesn't equate to objective globla measurement. Also, don't forget that short term fluctuations don't equate to climate. In the specific case of the sharp fall in global temperatures over the recent past, I suspect that is in part due to the albedo effects of snow cover at lower latitudes. http://climate.rutgers.edu/snowcover..._year=2010&ui_... 358&ui_set=2 -- Stewart Robert Hinsley The point is, and this is the reason I mentioned it, is it seems you can always dig up some definitive information to back up your views on GW, one way or the other, so in the end it all become meaningless. For me the shrinking of the arctic ice mass is the best thermometer, which *may* reverse, but there's no obvious signs atm! Keith (Southend) http://www.southendweather.net "Weather Home & Abroad" There's far more sea ice in the SH then the NH Keith and that has been running well above average these last several years and possibly long, so why isn't that a thermometer? The major differnce is that the SH sea ice due to open water in every directyions doesn't last as long in the SH summer early autumn as it oes in the NH |
#24
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![]() "Graham P Davis" wrote in message ... On Thursday 30 Dec 2010 10:01, Dawlish scribbled: On Dec 29, 10:09 pm, "Lawrence Jenkins" wrote: At first I thought this was a mistake, a quirk, but no there seems to have been a remarkable plunge in the near surface temperature recordhttp://discover.itsc.uah.edu/amsutemps/execute.csh?amsutemps It is now lower for the 28th December 2010 than at any time since 1998; that is some drop that I've seen no one else predict bar Joe who has been proclaiming this would happen since this time last year. Surely he deserves some praise and not the petty treatment he gets here on many an occasion. ???? Amazing. A superb performance. Lawrence too. Global temperatures always fall towards December. Well done to Joe for predicting it and Lawrence for thinking it means something. No-one else saw that annual fall coming either. Terrific!! laughing BTW. Here's the actual near-surface AMSU-A temperatures. Nowhere near "a remarkable plunge" and December's UAH figures will be out in a few days time and will comfirm that. I think Lawrence has been at the funny stuff over Christmas. *)) http://discover.itsc.uah.edu/amsutem...?amsutemps+001 To be fair to Lawrence, he is correct in saying that there is a remarkable fall on the near-surface graph (ch04), but as it's only happened over the past few days it does look like desperation - or a leg-pull perhaps? - to draw the conclusions he does. Difference between 2009 and 2010 was -0.08C on the 25th and -0.89C on the 28th, the latest day for which data is available. Heck of a drop! -- Graham Davis, Bracknell It was raining cats and dogs and I fell in a poodle. [Chic Murray(1919-1985)] That's all I'm really saying Graham, that's why twice I posed the question is this some sort of glich. Even if real and the temp doeos rise again it was as you say a "heck of a drop" in such a short time period and jsut doesn't look right. |
#25
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![]() "Alan LeHun" wrote in message ... In article om, says... So I take it Alan that you feel the drop in near surface temperature is not a fact? Maybe he feels that the drop in near surface temperature over such a short period is not significant? -- Alan LeHun Alan the point is its a remarkable drop in such a short space of time. To be fair I did link it to Joe B's prediction of global cooling over the next 30 years. However regardless that is some drop. |
#26
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In message m,
Lawrence Jenkins writes "Alan LeHun" wrote in message ... In article om, says... So I take it Alan that you feel the drop in near surface temperature is not a fact? Maybe he feels that the drop in near surface temperature over such a short period is not significant? -- Alan LeHun Alan the point is its a remarkable drop in such a short space of time. To be fair I did link it to Joe B's prediction of global cooling over the next 30 years. However regardless that is some drop. Would you care to demonstrate that it is actually a remarkable drop. First convert to a seasonally adjusted anomaly to remove the seasonal cooling trend, and the compare with comparable periods over the last, say, 10 years. Is it actually out of the ordinary? (You might look at the "remarkable rise" at the end of December 2004.) -- Stewart Robert Hinsley |
#27
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![]() "Stewart Robert Hinsley" wrote in message ... In message m, Lawrence Jenkins writes "Alan LeHun" wrote in message ... In article om, says... So I take it Alan that you feel the drop in near surface temperature is not a fact? Maybe he feels that the drop in near surface temperature over such a short period is not significant? -- Alan LeHun Alan the point is its a remarkable drop in such a short space of time. To be fair I did link it to Joe B's prediction of global cooling over the next 30 years. However regardless that is some drop. Would you care to demonstrate that it is actually a remarkable drop. First convert to a seasonally adjusted anomaly to remove the seasonal cooling trend, and the compare with comparable periods over the last, say, 10 years. Is it actually out of the ordinary? (You might look at the "remarkable rise" at the end of December 2004.) -- Stewart Robert Hinsley |
#28
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![]() "Stewart Robert Hinsley" wrote in message ... In message m, Lawrence Jenkins writes "Alan LeHun" wrote in message ... In article om, says... So I take it Alan that you feel the drop in near surface temperature is not a fact? Maybe he feels that the drop in near surface temperature over such a short period is not significant? -- Alan LeHun Alan the point is its a remarkable drop in such a short space of time. To be fair I did link it to Joe B's prediction of global cooling over the next 30 years. However regardless that is some drop. Would you care to demonstrate that it is actually a remarkable drop. First convert to a seasonally adjusted anomaly to remove the seasonal cooling trend, and the compare with comparable periods over the last, say, 10 years. Is it actually out of the ordinary? (You might look at the "remarkable rise" at the end of December 2004.) -- Stewart Robert Hinsley No where near as sharp and as long and I never mentioned up and that's the point it in the opposite direction. |
#29
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On Dec 30, 9:26*pm, "Lawrence Jenkins" wrote:
"Stewart Robert Hinsley" wrote in ... In message m, Lawrence Jenkins writes "Alan LeHun" wrote in message ... In article om, says... So I take it Alan that you feel the drop in near surface temperature is not a fact? Maybe he feels that the drop in near surface temperature over such a short period is not significant? -- Alan LeHun Alan the point is its a remarkable drop in such a short space of time. To be fair I did link it to Joe B's prediction of global cooling over the next 30 years. However regardless that is some drop. Would you care to demonstrate that it is actually a remarkable drop. First convert to a seasonally adjusted anomaly to remove the seasonal cooling trend, and the compare with comparable periods over the last, say, 10 years. Is it actually out of the ordinary? (You might look at the "remarkable rise" at the end of December 2004.) -- Stewart Robert Hinsley No where near as sharp and as long and I never mentioned up and that's the point it in the opposite direction.- Hide quoted text - - Show quoted text - Does anyone have any idea what Lawrence has tried to say here? |
#30
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In article ,
says... I was merely commenting on the WMO view on 2010 and not on the other data which gave an error message when I clicked on the link. k. Reading too much into that part of thread..... To get the graph: http://discover.itsc.uah.edu/amsutemps/ and click on "Draw Graph" near the bottom right. Uses Java. -- Alan LeHun |
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