Sri Lanka facing ‘La Nina’

Dharatha

Well-known member
  • Dec 29, 2006
    14,657
    4,511
    113
    Stating that the current bad weather is a result of Sri Lanka being affected by the La Nina phenomenon that had hit the entire globe, the Department of Meteorology warned that the country should be prepared to face any weather condition in the future.

    Department of Meteorology Director General P. B. Samarasinghe told at a news conference as the amount of rains which the country is experiencing have increased by 100 percent. (YP)



    http://www.dailymirror.lk/news/8968-sri-lanka-facing-la-nina.html
     
    • Like
    Reactions: ms48mail

    argan

    Well-known member
  • Jul 27, 2007
    16,100
    2,076
    113
    37
    <<< Benthara Gangen Eha >>>
    La Niña is a coupled ocean-atmosphere phenomenon that is the counterpart of El Niño as part of the broader El Niño-Southern Oscillation climate pattern. During a period of La Niña, the sea surface temperature across the equatorial Eastern Central Pacific Ocean will be lower than normal by 3–5 °C. In the United States, an episode of La Niña is defined as a period of at least 5 months of La Niña conditions. The name La Niña originates from Spanish, meaning "the girl", analogous to El Niño meaning "the boy".

    Extracted from Wikipedia - http://en.wikipedia.org/wiki/La_Niña
     

    argan

    Well-known member
  • Jul 27, 2007
    16,100
    2,076
    113
    37
    <<< Benthara Gangen Eha >>>
    The term La Niña refers to the extensive cooling of the central and eastern Pacific. The subsequent changes to the atmosphere and ocean circulation are as varied and diverse as those of the earlier El Niño event.

    Lower than normal temperatures across the central and eastern Pacific Ocean have important effects on the weather and in particular on rainfall amounts. Increased sea temperatures on the western side of the Pacific means that here the atmosphere has more energy and the frequency of heavy rain and thunderstorms is increased.

    La Niña is preceded by the build up of cooler than normal subsurface water in the tropical Pacific. Wave action and easterly winds will pull this colder water to the surface off the coast of Peru and Ecuador and as the easterly trade winds strengthen the effect becomes stronger

    Typically La Niña will last for up to 12 months and will be a generally less damaging event than the stronger El Niño, that is not to say that the global impact will not be as diverse.


    Globally La Niña, in very general terms, will mean that those parts of the world that normally experience dry weather will be drier and those with wet weather will be wetter


    Extracted from - http://www.bbc.co.uk/weather/features/understanding/la_nina.shtml
     

    silentsahan

    Well-known member
  • Apr 28, 2010
    9,737
    1
    3,658
    113
    Rajagiriya
    hapoi... thnx dude 4 info... mekat tsunami wageda danne na....

    nino_nina.jpg


    147973main_jet_streams_nina_lg.jpg


    La_Niña_Conditions.jpg


    lanina_090607.jpg


    @ dharatha, meya porathwaya sadaha kala deyak nowana bawa karunawen salakanna..:P
     

    silentsahan

    Well-known member
  • Apr 28, 2010
    9,737
    1
    3,658
    113
    Rajagiriya
    The term La Niña refers to the extensive cooling of the central and eastern Pacific. The subsequent changes to the atmosphere and ocean circulation are as varied and diverse as those of the earlier El Niño event.

    Lower than normal temperatures across the central and eastern Pacific Ocean have important effects on the weather and in particular on rainfall amounts. Increased sea temperatures on the western side of the Pacific means that here the atmosphere has more energy and the frequency of heavy rain and thunderstorms is increased.

    La Niña is preceded by the build up of cooler than normal subsurface water in the tropical Pacific. Wave action and easterly winds will pull this colder water to the surface off the coast of Peru and Ecuador and as the easterly trade winds strengthen the effect becomes stronger

    Typically La Niña will last for up to 12 months and will be a generally less damaging event than the stronger El Niño, that is not to say that the global impact will not be as diverse.


    Globally La Niña, in very general terms, will mean that those parts of the world that normally experience dry weather will be drier and those with wet weather will be wetter


    Extracted from - http://www.bbc.co.uk/weather/features/understanding/la_nina.shtml
    el-nino1.jpg
     
    Last edited: