
52.58316 0.34595 Met Office CIMO Assessed Class 4 (to be disputed) Installed 1/1/1936 Archived Temperature records from 1978.
Denver Sluice in Norfolk is a remarkable and hugely important example of 17th Century land and river management designed by the Dutch engineer Cornelius Vermuyden. A short explanatory “Youtube” clip details both the history and purposes of the extremely extensive works that were achieved with nothing more than manual labour.
However, disregarding the sluice, looking at the aerial image of the weather station in close up indicates the screen is just 800 mm from a large hedge, on an artificial island surrounded by concrete constructions, with virtually no natural vegetation, lots of buildings, roadways and hard standing, and, of course, a lot of water.

A still from the video confirms the proximity to the hedge which is actually taller than the screen height. The little white dot represents the screen which is invisible from the nearby roadside view.

CIMO Class 4 is quite specific.

So it is obvious that either the Met Office do not consider siting hard alongside a hedge as problematical or this site does not get remotely close to meeting Class 4. What Met Office inspector genuinely feels this site – in what is clearly a totally artificial site in no way representative of anywhere outside of a few metres of the screen – can be considered anything other than a Class 5 and likely suffering from immediate shading. I am raising this bizarre rating with the Met Office and questioning how on earth readings from such an artificial and unique environment can be included in the UK historic temperature record.
via Tallbloke’s Talkshop
November 10, 2024 at 03:09PM
