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Why is the Liffey so high?

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  • 24-11-2011 11:58am
    #1
    Spidermany
    Registered Users Posts: 128 ✭✭


    My DH just sent me a photo that he took on his phone of the Liffey. To me it seems incredibly high - just under the boardwalk.

    Is it usually that high or is something going on?


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    #2
    downsouth
    Closed Accounts Posts: 25 ✭downsouth


    Spidermany wrote: »
    My DH just sent me a photo that he took on his phone of the Liffey. To me it seems incredibly high.

    Is it usually that high or is something going on?

    Can you add the photo here?


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    #3
    HeidiHeidi
    Registered Users Posts: 29,369 ✭✭✭✭HeidiHeidi


    High spring tide (4.2m) at 10.11 today - that would explain it.....

    ETA - I'd love to see the pic as well!


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    #4
    Degsy
    Banned (with Prison Access) Posts: 16,397 ✭✭✭✭Degsy


    Spidermany wrote: »
    My DH just sent me a photo that he took on his phone of the Liffey. To me it seems incredibly high - just under the boardwalk.

    Is it usually that high or is something going on?

    Everybody on the boardwalk is incredibly high.;)


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    #5
    Tabnabs
    Moderators, Recreation & Hobbies Moderators, Sports Moderators Posts: 15,721 Mod ✭✭✭✭Tabnabs


    Spring tide
    Spring Tides
    When the moon is full or new, the gravitational pull of the moon and sun are combined. At these times, the high tides are very high and the low tides are very low. This is known as a spring high tide. Spring tides are especially strong tides (they do not have anything to do with the season Spring). They occur when the Earth, the Sun, and the Moon are in a line. The gravitational forces of the Moon and the Sun both contribute to the tides. Spring tides occur during the full moon and the new moon.

    It will be high for the next few days with Saturday and Sunday being the highest.


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    #6
    chin_grin
    Closed Accounts Posts: 10,808 ✭✭✭✭chin_grin


    Tabnabs wrote: »
    Spring tide



    It will be high for the next few days with Saturday and Sunday being the highest.

    SCIENCE!


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    #7
    Spidermany
    Registered Users Posts: 128 ✭✭Spidermany


    I thought about Spring Tides but assumed that they only happened in springtime.


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    #8
    maggy_thatcher
    Registered Users Posts: 1,056 ✭✭✭maggy_thatcher


    A Spring Tide happens twice a month:
    645px-Tide_schematic.svg.png.
    We're shortly before the new moon phase at the moment (if you look at the moon, you can see just a thin crescent, and not much else), so the tide range will be wider and wider until the weekend, and then start to get smaller and smaller.


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    #9
    HeidiHeidi
    Registered Users Posts: 29,369 ✭✭✭✭HeidiHeidi


    Tons of interesting weather/wind/tidal information (for those so inclined, including me!) to be found on www.dlharbour.ie.

    Next new moon is tomorrow, so that will be the highest tide until the full moon in 15 days time.


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    #10
    Tabnabs
    Moderators, Recreation & Hobbies Moderators, Sports Moderators Posts: 15,721 Mod ✭✭✭✭Tabnabs


    HeidiHeidi wrote: »
    Tons of interesting weather/wind/tidal information (for those so inclined, including me!) to be found on www.dlharbour.ie.

    Next new moon is tomorrow, so that will be the highest tide until the full moon in 15 days time.

    Yes and no, new moon tomorrow alright, but highest tide is still on Saturday @ 1142 (4.32m) :p.


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    #11
    HeidiHeidi
    Registered Users Posts: 29,369 ✭✭✭✭HeidiHeidi


    Tabnabs wrote: »
    Yes and no, new moon tomorrow alright, but highest tide is still on Saturday @ 1142 (4.32m) :p.

    http://easytide.ukho.gov.uk/EasyTide/EasyTide/ShowPrediction.aspx?PortID=0615&PredictionLength=4

    and tommorrow ;)

    ETA - ah, you have one more decimal place than me....


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