By Paul Homewood
Must be global warming!!
Scotland has recorded its hottest ever temperature, according to provisional figures from the Met Office.
On Thursday 28 June, a temperature of 33.2C degrees was measured in Motherwell, North Lanarkshire.
It exceeds the 32.9C recorded in August 2003, at Greycrook in the Borders.
On interrogating the Met Office, it turns out that the Motherwell reading comes from Strathclyde Country Park, and the co-ordinates given by them put the thermometer either bang in the middle of either a concrete or tarmac car park, or on the building roof sat in it. (I assume its not in six foot of water!)
As any half competent meteorologist will tell you, this is the last place you should site on. For instance, Weather Works advise:
Place the thermometer over a grassy or dirt surface. Concrete and pavement attract much more heat than grass. That is why cities are often warmer compared to suburbs. It is recommended to keep the thermometer at least 100 ft. from any paved or concrete surfaces to prevent an erroneously high temperature measurement.
I have also asked the Met Office how long the thermometer has been at Strathclyde Park, but so far they have not responded. Given that park was only developed in the 1980s, I doubt whether that it has been there long, making any “record” utterly meaningless.
There is an automatic weather station at Salsburgh, which is a tiny village only about 10 miles from Strathclyde Park. In other words, just the sort of place you should be taking temperature readings.
The Met Office have advised me that the top temperature there that day was only 29.4C.
OK, Salsburgh is at an altitude of 277m, compared to 22m for Strathclyde Park, so a difference in temperature should be expected.
According to UCAR, what is called the “lapse rate” is 6.5C per 1000m. In other words, Salsburgh should be 1.6C cooler. Therefore, given Salsburgh was 29.4C that day, we could expect Strathclyde Park to be about 31.0C.
It is hard to see how local weather conditions could have been so different between two sites so close together, so the only reasonable conclusion is that the UHI effect at Strathclyde was responsible for an extra 2C of warming.
The late Philip Eden, senior meteorologist and past Vice President of the Royal Meteorological Society, was adamant that the “UK record temperature”, set at Faversham in 2003, should never have been officially recognised, because of poor siting. The Met Office of course ignored his advice and gleefully declared the record.
Since then they have done the same with the July “record” at Heathrow in 2015, and will doubtlessly do the same again this time.
via NOT A LOT OF PEOPLE KNOW THAT
July 5, 2018 at 11:45AM