Gaoth Laidir Registered User
#1

There is already a thread on the Shannon station due to the question over its suspiciously high temperature readings lately. This started a debate on the quality of the siting of this and other stations, so here is one thread aimed at providing a reference to as many stations as possible (coordinates, aerial imagery, etc.).

Met Éireann have a page on all of their synoptic stations (excluding Airports) here, and one for their airports here. Here's a table summarising all, including the regional airports. The coordinates shown are the centre of the instrument enclosure, taken from the Bing aerial image.

Stations should be sited in such a way as they can represent conditions of the general area. The station enclosure should be level and covered in short grass, well away from buildings, walls, paved areas, etc. The temperature sensors should be free from extraneous heat and radiation, and for this reason the they are housed in a Stevenson Screen, which allows natural ventilation of the air through its louvred sides while protecting the sensors from direct solar radiation. Rain gauges are usually sunk into circular pits in the ground to minimise the effects of undercatching due to wind turbulence. Anemometers are located on masts 10 metres above the ground, located several times that distance away from buildings and large trees to minimise turbulence effects.

Departure from the above guidlelines can lead to biases in longterm climate trends for that station. In the case of Shannon, it's been discovered that it was relocated to an enclosure close to a large carpark some time after 2005. This has possibly led to false high temperature readings in times of sunny weather and easterly winds. A recent record temperature in Motherwell, Scotland, was since rejected by the Met Office as it was found that a vehicle had its engine running too close to the temperature sensor.

StationCoordinatesElevationBing Aerial image
Athenry53.289136, -8.78554340 mhttps://binged.it/2MVmwqB
Ballyhaise54.053106, -7.31392478 mhttps://binged.it/2KFxSm9
Belmullet54.227524, -10.0068179 mhttps://binged.it/2MSzBRB
Casement53.305314, -6.44119192 mhttps://binged.it/2MZiX2T
Claremorris53.710646, -8.99234368 mhttps://binged.it/2MY0rYF
Cork Airport51.848130, -8.479649160 mhttps://binged.it/2MYIYiT
Donegal Airport55.043981, -8.3392313 mhttps://binged.it/2KCQxic
Dublin Airport53.421522, -6.29786775 mhttps://binged.it/2KHsxL2
Dunsany53.516082, -6.66057583 mhttps://binged.it/2MUzAws
Finner54.493887, -8.24286533 mhttps://binged.it/2MYemhf
Gurteen53.036297, -8.00852275 mhttps://binged.it/2KBLDlL
Johnstown Castle52.297632, -6.49677462 mhttps://binged.it/2KHk4HK
Kerry Airport52.180085, -9.53772123 mhttps://binged.it/2KEkVZv
Mace Head53.326435, -9.90422514 mhttps://binged.it/2MUdvhK
Knock Airport53.912811, -8.810569203 mhttps://binged.it/2N0a0X8
Malin Head55.371969, -7.33927522 mhttps://binged.it/2KFLca9
Markree Castle54.178403, -8.46242034 mhttps://binged.it/2KEUXFq
Mount Dillon53.726989, -7.98098639 mhttps://binged.it/2MY3Jee
Mullingar53.537184, -7.361872101 mhttps://binged.it/2MZQXMC
Newport53.923623, -9.57267422 mhttps://binged.it/2KE0FYi
Oak Park52.861242, -6.91499162 mhttps://binged.it/2N0FL2d
Phoenix Park53.363653, -6.34959848 mhttps://binged.it/2KJkmOs
Roche's Point51.798242, -8.25020743 mhttps://binged.it/2KHmF4v
Shannon Airport52.695279, -8.9294336 mhttps://binged.it/2KEtN1o
Sherkin Island51.476803, -9.42873221 mhttps://binged.it/2KJkuxq
Sligo Airport54.279412, -8.5989053 mhttps://binged.it/2KH4MTl
Valentia51.938301, -10.24102925 mhttps://binged.it/2KEX5wU
Waterford Airport52.189734, -7.08725331 mhttps://binged.it/2KE4xZk
Weston Airport53.355568, -6.48738748 mhttps://binged.it/2KF4Bb6

4 people have thanked this post
Gaoth Laidir Registered User
#2

Do the Bing links work?

1 person has thanked this post
Rougies Registered User
#3

Gaoth Laidir said:
Do the Bing links work?



Not for me, just bring me to the search front page. Maybe you have to be signed in?

ZX7R Registered User
#4

Gaoth Laidir said:
Do the Bing links work?


Bing links work as in it brings you there but not sure what I am ment to be searching for when there

Speak Now Registered User
#5

No not for me either.

I've been trying recently to find a full list of stations they use for climatic data. Is that the
full list above? Was Mount Juilet dropped?

Also the only data I can get from Waterford airport is the latest reports which only covers the most recent couple of hours. Is this published somewhere else?

BTW anyone know who runs the Killarney National park weather station. I was only looking at it yesterday wondering if it was still active.

http://www.geograph.ie/photo/260173

Rougies Registered User
#6

Gaoth Laidir, the problem with the bing links is they add "</td><td>" to the end of the url for some reason. If I copy and paste the text they work fine.

It looks like you have an empty column at the end of the table (thin grey vertical bar with a "_" at the top), so probably some formatting issues causing the problem.

1 person has thanked this post
Gaoth Laidir Registered User
#7

Rougies said:
Gaoth Laidir, the problem with the bing links is they add "</td><td>" to the end of the url for some reason. If I copy and paste the text they work fine.

It looks like you have an empty column at the end of the table (thin grey vertical bar with a "_" at the top), so probably some formatting issues causing the problem.


Spot on, thanks! Fixed now.

1 person has thanked this post
Gaoth Laidir Registered User
#8

Speak Now said:
No not for me either.

I've been trying recently to find a full list of stations they use for climatic data. Is that the
full list above? Was Mount Juilet dropped?

Also the only data I can get from Waterford airport is the latest reports which only covers the most recent couple of hours. Is this published somewhere else?

BTW anyone know who runs the Killarney National park weather station. I was only looking at it yesterday wondering if it was still active.

http://www.geograph.ie/photo/260173


The above list is only the hourly stations on their website plus a few more regional airports. You can see reports for the airports here. Airport codes are four letters, EI**, where the ** is the individual identifier.

DL=Donegal
SG=Sligo
KN=Knock
NN=Dublin
ME=Casement
DW=Dublin
KY=Kerry
CK=Cork
WF=Waterford

1 person has thanked this post
Gaoth Laidir Registered User
#9

I took a few photos of the various weather instrumentation at Dublin Airport yesterday. There are two 10-metre anemometers, the main one is located midfield, south of the main runway, but I notice a new one further east, at the touchdown zone of R28. It's beside the Glidescope antenna array and therefore probably used by the tower when issuing landing clearances on that runway (I assume).

At the midpoint of the runway there is another RVR sensor array with its own automatic weather station and 2-metre anemometer. These would most likely be part of the RVR system and used as a more precise indicator of conditions right at that point.




https://farm1.staticflickr.com/925/41447348560_081dc8fb3c_z.jpg
https://farm2.staticflickr.com/1823/41447329270_8b2b2ed25f_z.jpg
https://farm1.staticflickr.com/924/41447357080_5719149f92_z.jpg

Attachments
Dublin airport.png
3 people have thanked this post
Gaoth Laidir Registered User
#10

Here's all the info on that refected record at Motherwell. Look at the stevenson's screen and the crap that's surrounding it. Ironically it was an ice cream van that was the source of extra heat.

https://wattsupwiththat.com/2018/07/06/friday-funny-scottish-record-high-temperature-caused-by-ice-cream-truck/

1 person has thanked this post
Gaoth Laidir Registered User
#11

There is some more detailed info on some of the synoptic stations in the Subsets in the Ireland BUFR files, such as this one. It gives the height altitude of east station and its barometer, which in the case of the airports seems to be in a building several floors above ground level, but just 1 metre at the automatic stations. Exception: Casement's barometer is 4 metres BELOW station level (obviously some other part of the airfield).

StationWMO IDStation altitude (m amsl)Barometer altitude (m amsl)Temperature sensor height (m agl)
Sherkin Island0395120211.25
Valentia0395323251.25
Cork Airport039551531621.25
Johnstown Castle0395662631.25
Shannon Airport0396214201.25
Mace Head0396321231.25
Gurteen0396675761.25
Casement0396797931.25
Dublin Airport0396974851.25
Knock039732032101.25
Belmullet039769101.25
Malin Head0398020211.25

Donegal Storm Registered User
#12

Gaoth Laidir said:
Here's all the info on that refected record at Motherwell. Look at the stevenson's screen and the crap that's surrounding it. Ironically it was an ice cream van that was the source of extra heat.

https://wattsupwiththat.com/2018/07/06/friday-funny-scottish-record-high-temperature-caused-by-ice-cream-truck/


I spent ages looking for that station on maps when that was first reported, suspected it was near tarmac but never would have even thought to look there, ridiculous location

1 person has thanked this post
compsys Registered User
#13

Does anyone know how the proposed new runway at Dublin Airport could affect the Airport station?

Will it have to be moved again or will it remain in the same place but potentially be affected by the new building works?

Rougies Registered User
#14

compsys said:
Does anyone know how the proposed new runway at Dublin Airport could affect the Airport station?

Will it have to be moved again or will it remain in the same place but potentially be affected by the new building works?



Not at all, the new runway would be about 2km away from the met station at it's closest point.

Bsal Registered User
#15

Should have no affect on the current position

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