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Shannon radar down again.

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Comments

  • #452
    Harry Palmr
    Closed Accounts Posts: 40,061 ✭✭✭✭Harry Palmr


    Knew it!!! I'm in Waterford and was keeping an eye on the skies as I'm working outside. Checked the met site and it lies, it lies!


  • #453
    seefin
    Closed Accounts Posts: 1,079 ✭✭✭seefin


    Is it back up ? Assume ye saw message about it on the met.ie site? So basically if the radar is down, then even if the met site says its meant to be dry for the next few days, thats a load of hogwash?


  • #454
    seefin
    Closed Accounts Posts: 1,079 ✭✭✭seefin


    seefin wrote: »
    Is it back up ? Assume ye saw message about it on the met.ie site? So basically if the radar is down, then even if the met site says its meant to be dry for the next few days, thats a load of hogwash?

    Hmmmph obviously still down. Was just about to sit out for an hour all wrapped up and it started to lash . Goddam ye met eireann


  • #455
    Oneiric 3
    Registered Users Posts: 6,235 ✭✭✭Oneiric 3


    I hear this new radar solution is to be installed in Shannon soon:

    7c5b03f3e60f6a0ff53f318f7aec84c1_preview_featured.jpg

    New Moon



  • #456
    Comhrá
    Registered Users Posts: 4,750 ✭✭✭Comhrá


    Oneiric 3 wrote: »
    I hear this new radar solution is to be installed in Shannon soon:

    Looks like milk chocolate, same as the present one.


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  • #457
    Jpmarn
    Registered Users Posts: 1,475 ✭✭✭Jpmarn


    Oneiric 3 wrote: »
    I hear this new radar solution is to be installed in Shannon soon:

    7c5b03f3e60f6a0ff53f318f7aec84c1_preview_featured.jpg

    Nice chocolate product for the the duty free shop located rightly underneath the actual rainfall radar.


  • #458
    ronnie3585
    Registered Users Posts: 6,675 ✭✭✭ronnie3585


    Comhra wrote: »
    Looks like milk chocolate, same as the present one.

    So that's why it always breaks when it rains!


  • #459
    SlowBlowin
    Registered Users Posts: 1,884 ✭✭✭SlowBlowin


    How many Shannon radar engineers does it take to change a light bulb ?

    Punchlines ?


  • #460
    coillsaille
    Registered Users Posts: 526 ✭✭✭coillsaille


    SlowBlowin wrote: »
    How many Shannon radar engineers does it take to change a light bulb ?

    Punchlines ?

    Well first they have to send for a new bulb from Germany...


  • #461
    talkabout
    Registered Users Posts: 695 ✭✭✭talkabout


    Dual-polarisation Weather Radar at Shannon Airport

    https://irl.eu-supply.com/ctm/Supplier/PublicPurchase/176189/0/0?returnUrl=&b=


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  • #462
    ecowise
    Registered Users Posts: 125 ✭✭ecowise


    Looking at the radar images last night I was surprised at how different the echoes north of Dublin were when Castor Bay (Belfast) was out of action. Dublin's accuracy seems limited even in the absence of nearby mountains (unlike to the south). Images at 00:10 h and 00:15 h. Hopefully they will avail of the tender option to get a dual polarization radar system in Dublin as well as Shannon.


  • #463
    Hotblack Desiato
    Registered Users Posts: 33,834 ✭✭✭✭Hotblack Desiato


    Not seeing what you're seeing there.

    I wouldn't think it reasonable to expect too much from Dublin radar beyond about Dundalk.

    It didn't pick up as much rain in NI because of the curvature of the earth! Think it did very well in Down/Armagh considering.

    Life ain't always empty.



  • #464
    ecowise
    Registered Users Posts: 125 ✭✭ecowise


    If you look at the echoes around Newry (roughly 100 km from Dublin) they are much stronger in the image with the NI radar. My understanding is that the effective range of C band radar (corrected for curvature of Earth) is around 120km but perhaps this correction option is only available for newer radar systems. (Obviously the non quantitative range is further, being about 250 km). We are about 100 km SE of Shannon (with mountains in between) so unless the new radar system has the correction feature we will still get poor coverage. As has been mentioned previously we could do with at least one more radar installation in the country.


  • #465
    Hotblack Desiato
    Registered Users Posts: 33,834 ✭✭✭✭Hotblack Desiato


    We could do with several more tbh.

    Due to the curvature of the earth, the minimum altitude of rain the radar can detect increases with distance. So it's no surprise the Belfast radar picked up more rain in Armagh than the Dublin one.

    Life ain't always empty.



  • #466
    seefin
    Closed Accounts Posts: 1,079 ✭✭✭seefin


    No indication that radar was down today . How come Met eireann site in hourly summary showed cork city being dry and cloudy all day, yet it's been mostly lashing since morning. Is the rainfall radar inaccurate ? Can't understand how they cant forecast for the present day- can someone explain?


  • #467
    ecowise
    Registered Users Posts: 125 ✭✭ecowise


    seefin wrote: »
    No indication that radar was down today . How come Met eireann site in hourly summary showed cork city being dry and cloudy all day, yet it's been mostly lashing since morning. Is the rainfall radar inaccurate ? Can't understand how they cant forecast for the present day- can someone explain?


    There have been weak & patchy radar echoes in the Cork area for much of the day. In my experience (similar distance to Cork from Shannon in west Waterford) the radar echoes are not reliable in light rain associated with low cloud. I think we could do with a radar installation in the south, perhaps Cork airport.


  • #468
    seefin
    Closed Accounts Posts: 1,079 ✭✭✭seefin


    ecowise wrote: »
    There have been weak & patchy radar echoes in the Cork area for much of the day. In my experience (similar distance to Cork from Shannon in west Waterford) the radar echoes are not reliable in light rain associated with low cloud. I think we could do with a radar installation in the south, perhaps Cork airport.

    The rain was pretty heavy here though. I don't know why i even bother each morning checking for the day ahead. Where else has rainfall radar installed apart from Shannon?


  • #469
    JCX BXC
    Registered Users Posts: 18,097 ✭✭✭✭JCX BXC


    The hourly summary is a computer generated model, generated only a few times everyday, and doesn't really seem to take the radar into account whatsoever.

    Radar has nothing to do with it, hence it being on or offline makes no difference to it.

    Met Eireanns hourly summaries are so ridiculously inaccurate I don't even look at them except for a rough idea as to whether it will rain for hours or expected wind direction.


  • #470
    ecowise
    Registered Users Posts: 125 ✭✭ecowise


    seefin wrote: »
    Where else has rainfall radar installed apart from Shannon?


    There are three rainfall radars on the island of Ireland, Shannon, Dublin (at airports) and Castor Bay (at a meteorological station by the SE corner of Lough Neagh).


  • #471
    arccosh
    Closed Accounts Posts: 624 ✭✭✭arccosh


    ecowise wrote: »
    There are three rainfall radars on the island of Ireland, Shannon, Dublin (at airports) and Castor Bay (at a meteorological station by the SE corner of Lough Neagh).


    Just to add to that, the one at Castor Bay one is part of the Met Office's infrastructure in the UK. Met Eireann only get a feed from it.



    The Met Eireann radars in Shannon and Dublin are much older.


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  • #472
    ecowise
    Registered Users Posts: 125 ✭✭ecowise


    arccosh wrote: »
    Met Eireann only get a feed from it.


    I presume data is shared through the OPERA network but perhaps there is also direct sharing between the UK & Irish Met Offices. Hopefully Brexit will not affect matters.


    "The Operational Program on the Exchange of Weather Radar Information (OPERA) has co-ordinated radar co-operation among national weather services in Europe for more than 20 years. It has introduced its own, manufacturer-independent data model, runs its own data center, and produces Pan-European radar composites."


    https://www.researchgate.net/publication/333741080_OPERA_the_Radar_Project


  • #473
    arccosh
    Closed Accounts Posts: 624 ✭✭✭arccosh


    ecowise wrote: »
    I presume data is shared through the OPERA network but perhaps there is also direct sharing between the UK & Irish Met Offices. Hopefully Brexit will not affect matters.


    "The Operational Program on the Exchange of Weather Radar Information (OPERA) has co-ordinated radar co-operation among national weather services in Europe for more than 20 years. It has introduced its own, manufacturer-independent data model, runs its own data center, and produces Pan-European radar composites."


    https://www.researchgate.net/publication/333741080_OPERA_the_Radar_Project


    I'd imagine there is a feed to it alright. There are non EU countires that feed into the project, so I imagine Brexit will have little impact. But as a general share between UK and IE, all you need is an IP connection for that, which unless the UK want to monetise it, I doubt would be effected.


  • #474
    sumtings
    Registered Users Posts: 265 ✭✭sumtings


    Down again, yay! On a day you really need it to get an outdoors window


  • #475
    spookwoman
    Registered Users Posts: 9,922 ✭✭✭spookwoman


    sumtings wrote: »
    Down again, yay! On a day you really need it to get an outdoors window

    It's raining, tis to be expected these days. :D


  • #476
    Discodog
    Registered Users Posts: 15,819 ✭✭✭✭Discodog


    sumtings wrote: »
    Down again, yay! On a day you really need it to get an outdoors window

    It's not down in the usual sense but it's certainly acting strange.


  • #477
    sumtings
    Registered Users Posts: 265 ✭✭sumtings


    Discodog wrote: »
    It's not down in the usual sense but it's certainly acting strange.

    From an end user point of view it's not great


  • #478
    Discodog
    Registered Users Posts: 15,819 ✭✭✭✭Discodog


    sumtings wrote: »
    From an end user point of view it's not great

    Back now


  • #479
    ronnie3585
    Registered Users Posts: 6,675 ✭✭✭ronnie3585


    Is it just me, or does the radar seem to go down when there’s particularly rainy weather? Wonder what causes this?


  • #480
    ecowise
    Registered Users Posts: 125 ✭✭ecowise


    arccosh wrote: »
    I'd imagine there is a feed to it alright. There are non EU countires that feed into the project, so I imagine Brexit will have little impact. But as a general share between UK and IE, all you need is an IP connection for that, which unless the UK want to monetise it, I doubt would be effected.


    Good point about non EU countries already being involved in OPERA so hopefully UK involvement will continue. I wonder if ME have the software to create a composite image using NI data or are they entirely dependent on OPERA to do this.


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  • #481
    SeedySam22
    Registered Users Posts: 51 ✭✭SeedySam22


    ronnie3585 wrote: »
    Is it just me, or does the radar seem to go down when there’s particularly rainy weather? Wonder what causes this?

    No - It's just raining all the time


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