Rate the Climate: London, UK (fog, september, stations, temperate)
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Heathrow is not affected by the UHI as that only has a major effect on night temps. Kew Gardens has cold minima, Greenwich has the mildest mins, but St James's Park or London Weather Centre would show a UHI influence.
West London in General is warmer than East London in summer.
Heathrow is not affected by the UHI as that only has a major effect on night temps.
We know the UHI has an impact on nightly minimums, but there is also an impact on day time temperatures as well....
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An an analysis of 65 cities across North America, researchers found that variation in how efficiently urban areas release heat back into the lower atmosphere — through the process of convection — is the dominant factor in the daytime UHI effect. This finding challenges a long-held belief that the phenomenon is driven principally by diminished evaporative cooling through the loss of vegetation.
The effects of impaired “convective efficiency” are particularly acute in wet climates, the researchers say. In cities such as Atlanta, Georgia, and Nashville, Tennessee, this factor alone contributes a 3-degree C rise in average daytime temperatures, according to the study, published July 10 in the journal Nature.
Well the station is located in a green environment as opposed to say an airport which would sit on a tarmac
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Greenwich has the mildest mins, but St James's Park or London Weather Centre would show a UHI influence.
I actually found a map that depicts the size of London's urban heat island
I'm not exactly sure where Greenwich, Heathrow, and the other stations I listed above would be placed on the map. I would be interesting to see though
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West London in General is warmer than East London in summer.
Ok so it's more geography I take.... Kind of an East vs West London thing. However, the differences aren't really big. Only about 1C from warmest station to coolest in July. Here the differences are more like 3C from warmest to coolest max temp in the metro area.
Last edited by chicagogeorge; 08-02-2014 at 12:23 PM..
Sydney's summers are only 2c warmer than London's. It's a big difference when averaged over a month.
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Originally Posted by B87
Why does everyone get so worked up when I talk about the London climate representing England if there's hardly any difference between them then?
When I was talking about Sydney I was talking about the average highs, and London's July average high isn't 23c.
It's completely disingenuous to take the warmest data from one area (Heathrow) and compare it to the coldest data in some other area (Sydney Observatory Hill). The preponderance of evidence when looking at all the stations around London and comparing all the stations around Sydney is that Sydney summers are far warmer than London.
And another thing, I'm tired of people advocating for certain high-latitude climates focusing in on a single month (July) and thereby suggesting that summer in temperate or continental city X must be the same as that for subtropical or tropical city Y. Doing so completely disregards the length of the warm season in lower-latitude climates.
Sydney can (and does) get summer-like weather for about 6 months of the year. The duration of summer has to be considered in any comparison.
Location: Segovia, central Spain, 1230 m asl, Csb Mediterranean with strong continental influence, 40º43 N
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Originally Posted by P London
That's true Southeast England including London can be the coldest part of the country during coldwaves.
SE England is the most "continental" part of Britain.
I guess is also the most thundery part of Britain in summer months, thought.
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