Topic: So, whos right?

[Bashy]

Quick question, whos right, us or the official Met Office station, see image...

"us" includes 2 raf bases (metars) and a Vantage Vue and me, VP 2+

[broadstairs]

I wold have said all of them  Since they are all in slightly different locations and installation situations none of them are that far out in my view.

Stuart

[Bashy]

Hi Stuart, me and the other 3 only have a few miles between us, Marham on the other hand is about 12 miles from us all

[weatherc]

I agree with Stuart. Those differences are really small at the end.
I have 1 other pws, 2 met and a bunch of roadstations in a radius of ca 20 km from here and we have almost never same values. Temp-differences can be suprising big at times, there are almost never conditions where ex. temperature would be the same for a big area.

[Bashy]

Yeah i can understand that, but what im trying to get across is that Marham EGYM is always off from us 4
us 4 are always fairly tight knit, then you get marham thats always has the bigger margin, thats why im
asking, who is right., the official station or us 4, if you go on CWOP and go to EGYM and do the QC and add
the 4 other stations thats in the image you will see what i mean and as for Marhams baro, thats another kettle
of cucumbers, its as though its sending from 2 stations

[weatherc]

From the graph you posted,
- Maybe gets slightly colder at nights but the diff to others are quite small (lower located or otherwise little microclimate what gets slightly colder?)
- Maybe shading in the morning delays the warmup of its location?

If i look at the surrounding stations here at the moment (counted 14 in a radius of 20-25 km), when cloudy/rainy weather, are there 1.2C difference between coldest and warmest station.
Sure, i compare at times my own to them too but only to see that its in the big picture at same level as the others. 

[Bashy]

Yeah, i think you guys are right, looking at this graph between me and the Met Office official station, ya cant argue with those morning figures,  i think, the times where we differ must be high cloud, thin cloud or the like  just enough to make a difference in data, considering im about just under 13 miles, its not bad going really

[WeatherHost]

A couple of miles can make a huge difference.  Twelve miles can be a different climate altogether.  Compare elevation, proximity to water, vegetation, man made elements (buildings, etc.) and many other factors.

[weatherc]

Yeah, i think you guys are right, looking at this graph between me and the Met Office official station, ya cant argue with those morning figures,  i think, the times where we differ must be high cloud, thin cloud or the like  just enough to make a difference in data, considering im about just under 13 miles, its not bad going really

Yep, those are damn good values. 

[Bashy]

Its another RAF base (airport), all flat land, no close water etc, again, its an official met office station, it will be well
within the stipulated guidelines for a weather station

Compare elevation, proximity to water, vegetation, man made elements (buildings, etc.) and many other factors.

[Bushman]

"Man with two watches never knows the correct time". 

[Bashy]

Does if they are both synced to the atomic clock

[WeatherHost]

Does if they are both synced to the atomic clock

But again, which one of those is right?  There seem to be a significant number of them  in use of different materials and standards:  https://en.wikipedia.org/wiki/Atomic_clock

"Caesium reference tubes suitable for national standards currently last about seven years and cost about US$35,000. "  And if they have to be replaced every 7 years, what if they set the new one wrong?

[Bashy]

If its made UK British scientists, that's the one to choose lol :p

[Mattk]

A.
B.
C.
D All of the above

[Old Tele man]

E. Some of the above
F. None of the above.