Mind blown !

[aveatry]

Some research finds this
Table 1. Hourly observations from Coningsby (WMO no. 03391, 53.094°N, 0.172°W, 7m amsl, Figure 9) for the period 1200–1800 utc on 19 July 2022. The day's maximum temperature, 40.3°C, was reached at 1512 utc (see Figure 8).
Here https://rmets.onlinelibrary.wiley.com/doi/full/10.1002/wea.7709

Now then 19th July is a Tuesday - a day when active flying is going on - its a training base as well as quick reaction trained station, so up to 20 typhoons can go out on a typical day.
You see that taxiway that goes right past the weather station - it runs the length of the bottom of the picture - that is the transit area where all the planes that take off first trundle down right past the weather station. - See the weather station in yellow ring. Everything comes down those 2 short areas at 45 degrees to the bottom taxi area and they then go left to right - past the weather station

 

[MNW67]

Some research finds this
Table 1. Hourly observations from Coningsby (WMO no. 03391, 53.094°N, 0.172°W, 7m amsl, Figure 9) for the period 1200–1800 utc on 19 July 2022. The day's maximum temperature, 40.3°C, was reached at 1512 utc

What about the reading of 40.2 at Pitsford, Northants. Would you accept that one?

 

[aveatry]

What about the reading of 40.2 at Pitsford, Northants. Would you accept that one?

That one is not used as the poster boy for climate doomers.

 

[noseall]

It wasn't a problem then though.
Now it is.

Well spotted.
The highest dozen or so UK mean temp's have occurred since C 2000

 

[MNW67]

That one is not used as the poster boy for climate doomers.

It seems to be at a school. I wonder where exactly.

It sounds like pupils take the readings.

 

[aveatry]

What about the reading of 40.2 at Pitsford, Northants. Would you accept that one?

Need to look more into that but a quick search tells me this - permanently closed -- a bit odd I thought these things are long established for consistency.
Another thing springs to mind - who is responsible for reading these things - in this case was it school kids - who confirms and validates the results ?

 

[Lirefighter]

Well spotted.
The highest dozen or so UK mean temp's have occurred since C 2000

Of course they have.
That's predominately when Blair was in power and he encouraged them to send all their heat our way.

 

[IT Minion]

I got stuck on whether it was conduction or convection. And how far the heat would travel before the effect becomes negligible.

Instantly.

It's another conspiracy theorist trope. The idea seems plausible but when you look at it with numbers it doesn't work. The data is solid.

 

[IT Minion]

Another thing springs to mind - who is responsible for reading these things - in this case was it school kids - who confirms and validates the results ?

Most of them are automated.

 

[IT Minion]

I've been thinking about this myself. Which heat transfer mechanisms would be in play here.

Conduction >> Convection >> radiation. At least near RTP.

But convection is more or less just conduction to the air molecules, which then wander off. That is the main method of the runway shedding heat.

Also, fun fact, there's almost no class 1 weather stations in the UK. They require a 300m clear radius for wind and a flat plain. It would be interesting to see what sort of weather numbers you get, but they'd be utterly pointless as no one on the UK would experience that weather. The WMO explicitly states you shouldn't reject weather reports using a lower tier of station as perfection isn't required.

 

[IT Minion]

Now then 19th July is a Tuesday - a day when active flying is going on - its a training base as well as quick reaction trained station, so up to 20 typhoons can go out on a typical day.

See, this is just disappointing. People just don't think about the numbers they're discussing.

A Euro fighter burns 15 Tons of fuel per hour on afterburners. They take around 8 seconds to reach takeoff speed. That's around 4l (41.4kWh) of Kerosene burnt over around 500m of distance.

The jet exhaust is being fired out at faster than the speed of sound (all numbers here are assuming afterburners and maximum payload). That heat is being spread over a massive area, which means it is diluted into insignificance in milliseconds.

If we assume the weather station is 30m from the runway and all the heat were contained in a box 500m long, 116m wide (to just include the station but no further) and 58m tall then that 4l of fuel would raise the air temperature by around 0.04 degrees. That is a massive over estimate though as we know the exhaust isn't contained in a box and is fired hundreds of meters away.

In the same 8 seconds the jet is trying to take off that 2.7km long, 57m wide runway is being exposed to 1kw per square meter, or around 340 kWh of solar heating The jets are negligible.

The Euro fighter is a mighty machine of war, but it is nothing compared to the might of the all powerful sun god Ra! (Who you probably srill think is an alien you quack).

 

[Harry Bloomfield]

It seems to be at a school. I wonder where exactly.

It sounds like pupils take the readings.

Why would anyone need to take a reading? My station records all the values, every few seconds, saves them to a file, and also uploads them to the Met Office. I can go back through the file on my system for years, have it check for maximum/minimum/averages. I can log in to my data on the Met Office site and do similar.

 

[diy_fun_uk]

Why would anyone need to take a reading? My station records all the values, every few seconds, saves them to a file, and also uploads them to the Met Office. I can go back through the file on my system for years, have it check for maximum/minimum/averages. I can log in to my data on the Met Office site and do similar.

To learn.

 

[aveatry]

See, this is just disappointing. People just don't think about the numbers they're discussing.

A Euro fighter burns 15 Tons of fuel per hour on afterburners. They take around 8 seconds to reach takeoff speed. That's around 4l (41.4kWh) of Kerosene burnt over around 500m of distance.

The jet exhaust is being fired out at faster than the speed of sound (all numbers here are assuming afterburners and maximum payload). That heat is being spread over a massive area, which means it is diluted into insignificance in milliseconds.

If we assume the weather station is 30m from the runway and all the heat were contained in a box 500m long, 116m wide (to just include the station but no further) and 58m tall then that 4l of fuel would raise the air temperature by around 0.04 degrees. That is a massive over estimate though as we know the exhaust isn't contained in a box and is fired hundreds of meters away.

In the same 8 seconds the jet is trying to take off that 2.7km long, 57m wide runway is being exposed to 1kw per square meter, or around 340 kWh of solar heating The jets are negligible.

The Euro fighter is a mighty machine of war, but it is nothing compared to the might of the all powerful sun god Ra! (Who you probably srill think is an alien you quack).

You completely wasted your time researching and calculating because you ignored what I said. That "road" that go's by the weather station is a transit route to the bottom of the runway - every one that takes trundles right past it -close to it.

 

[aveatry]

The WMO explicitly states you shouldn't reject weather reports using a lower tier of station as perfection isn't required.

Well the whole thing is pointless and useless then