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Old June 11th 07, 09:40 PM posted to uk.sci.weather
Col Col is offline
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Default European Hottest Day?


"Stephen Burt" wrote in message
ups.com...
On 11 Jun, 19:42, Bonos Ego wrote:


I'm surprised at comments that records made 100 years ago are less
accurate than those made today. Provided they were made with
calibrated thermometers in some reasonable ventilated shelter such as
a Stevenson screen, and in a reasonably open exposure, there's
absolutely no reason why they should not be comparable with today's
extremes. In the UK, we've seen recorded extremes rise from a little
over 36°C in the July 1868 heatwave to 38.1°C in August 2003; after
making allowance for different types of screens in use prior to the
beginning of the 20th century the records from heatwaves (and cold
waves, remember them) of 100 years or more stand good comparison with
today's values.


In the past 100 years or so the average global temperature has risen
by about 0.75C. And yet the absolute temperature records for each
continent haven't changed much. Doesn't this seem a little odd?
Surely if average global temperatures are rising then the absolute
records should be rising by the same degree?
--
Col

Bolton, Lancashire
160m asl