A wet ground will release energy through evaporation. A dry ground will retain the heat better and release heat more slowly resulting in higher temperatures.
Edited by Optimus Prime, 30 September 2011 - 09:51 .
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#21
Optimus Prime
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Posted 30 September 2011 - 09:51
Also depends on the environment too. If it had rained a lot before than the temperatures wouldn't be so hot. In the 2003 summer it had been warm and dry since February which helped to build the temperatures well over the landmass. I particularly remember the nights being warm that year.
A wet ground will release energy through evaporation. A dry ground will retain the heat better and release heat more slowly resulting in higher temperatures.
A wet ground will release energy through evaporation. A dry ground will retain the heat better and release heat more slowly resulting in higher temperatures.
May to the 6th
Mean Max 11.5c (-6.0c)
Mean Min 7.3c (-0.6c)
Mean 9.4c (-3.3c)
(Reference period 2004-2011)
Mean Max 11.5c (-6.0c)
Mean Min 7.3c (-0.6c)
Mean 9.4c (-3.3c)
(Reference period 2004-2011)
#22
Robbie Garrett
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Posted 01 October 2011 - 10:19
I can imagine that the 2003 heatwave was a one off, maybe never to be repeated for the UK ever again, but hopefully we can get 4 weeks of what we have now next Summer for once.
Regards
Robbie |
@ London Biggin Hill Airport!
Follow me on Twitter | @RobbiePPLPilot
Weather Extremes London 2009+ -
2009 - 5 Snowfalls, 6 Thunderstorms, 32.0 °C 2010 - 5 Snowfalls, 4 Thunderstorms, 31.7 °C 2011 - , 1 Snowfall, 3 Thunderstorms, 33.1 °C
2012, 2 Snowfalls, 11 Thunderstorms + 1 odd rumble (12), 26.9°C.
Robbie |
@ London Biggin Hill Airport! Follow me on Twitter | @RobbiePPLPilot
Weather Extremes London 2009+ -
2009 - 5 Snowfalls, 6 Thunderstorms, 32.0 °C 2010 - 5 Snowfalls, 4 Thunderstorms, 31.7 °C 2011 - , 1 Snowfall, 3 Thunderstorms, 33.1 °C
2012, 2 Snowfalls, 11 Thunderstorms + 1 odd rumble (12), 26.9°C.
#23
Robbie Garrett
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Posted 29 December 2011 - 18:32
I didn't want to create another topic, but does anyone have any details as to how the PV got disrupted last year? I can't find the topics on the model forums for November last year, just wondering where I can find it? or something on it?
Regards
Robbie |@ London Biggin Hill Airport!
Follow me on Twitter | @RobbiePPLPilot
Weather Extremes London 2009+ -
2009 - 5 Snowfalls, 6 Thunderstorms, 32.0 °C 2010 - 5 Snowfalls, 4 Thunderstorms, 31.7 °C 2011 - , 1 Snowfall, 3 Thunderstorms, 33.1 °C
2012, 2 Snowfalls, 11 Thunderstorms + 1 odd rumble (12), 26.9°C.
Robbie |
@ London Biggin Hill Airport! Follow me on Twitter | @RobbiePPLPilot
Weather Extremes London 2009+ -
2009 - 5 Snowfalls, 6 Thunderstorms, 32.0 °C 2010 - 5 Snowfalls, 4 Thunderstorms, 31.7 °C 2011 - , 1 Snowfall, 3 Thunderstorms, 33.1 °C
2012, 2 Snowfalls, 11 Thunderstorms + 1 odd rumble (12), 26.9°C.
#24
s4lancia
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Posted 29 December 2011 - 19:22
Robbie Garrett, on 29 December 2011 - 18:32 , said:
I didn't want to create another topic, but does anyone have any details as to how the PV got disrupted last year? I can't find the topics on the model forums for November last year, just wondering where I can find it? or something on it?
Up for debate but I'd say the main factor was the early warming of the stratosphere made it difficult to get up and going which then meant splitting/displacement was relatively easy. A severe cooldown mid December(ish) meant that that was not the case going into Mid January onwards!
It will no doubt, & quite rightly, remain open to conjecture as to what exactly has caused it and obviously it is multi-factoral. The PDO and solar influences are surely a part of it, but whatever has caused it the facts are presenting themselves to us as clear as day... Four years ago we saw the start of a distinct shift in weather patterns when the PF jet started to show a far greater interest in visiting more southern climes. Successions of predominately mild Atlantic driven winters are soooo last cycle!
(1988-2007?)
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