世界气象组织：今年可能出现厄尔尼诺现象
<p><span word="The">The</span> <span word="UN">UN</span> <span word="weather">weather</span> <span word="agency">agency</span> <span word="warned">warned</span> <span word="on">on</span> <span word="Tuesday">Tuesday</span> <span word="there">there</span> <span word="was">was</span> <span word="a">a</span> <span word="good">good</span> <span word="chance">chance</span> <span word="of">of</span> <span word="an">an</span> "<span word="El">El</span> <span word="Nino">Nino</span>" <span word="climate">climate</span> <span word="phenomenon">phenomenon</span> <span word="in">in</span> <span word="the">the</span> <span word="Pacific">Pacific</span> <span word="Ocean">Ocean</span> <span word="this">this</span> <span word="year">year</span>, <span word="bringing">bringing</span> <span word="droughts">droughts</span> <span word="and">and</span> <span word="heavy">heavy</span> <span word="rainfall">rainfall</span> <span word="to">to</span> <span word="the">the</span> <span word="rest">rest</span> <span word="of">of</span> <span word="the">the</span> <span word="world">world</span>.</p><p><span word="The">The</span> <span word="World">World</span> <span word="Meteorological">Meteorological</span> <span word="Organisation">Organisation</span> (<span word="WMO">WMO</span>) <span word="said">said</span> <span word="its">its</span> <span word="modelling">modelling</span> <span word="suggested">suggested</span> <span word="a">a</span> "<span word="fairly">fairly</span> <span word="large">large</span> <span word="potential">potential</span> <span word="for">for</span> <span word="an">an</span> <span word="El">El</span> <span word="Nino">Nino</span>, <span word="most">most</span> <span word="likely">likely</span> <span word="by">by</span> <span word="the">the</span> <span word="end">end</span> <span word="of">of</span> <span word="the">the</span> <span word="second">second</span> <span word="quarter">quarter</span> <span word="of">of</span> 2017".</p><p>"<span word="If">If</span> <span word="an">an</span> <span word="El">El</span> <span word="Nino">Nino</span> <span word="event">event</span> <span word="develops">develops</span> ... <span word="it">it</span> <span word="will">will</span> <span word="influence">influence</span> <span word="temperatures">temperatures</span> <span word="and">and</span> <span word="precipitation">precipitation</span> <span word="and">and</span> <span word="contribute">contribute</span> <span word="to">to</span> <span word="droughts">droughts</span> <span word="or">or</span> <span word="heavy">heavy</span> <span word="rainfall">rainfall</span> <span word="in">in</span> <span word="different">different</span> <span word="regions">regions</span> <span word="of">of</span> <span word="the">the</span> <span word="world">world</span>," <span word="Michel">Michel</span> <span word="Jarraud">Jarraud</span>, <span word="WMO">WMO</span> <span word="chief">chief</span>, <span word="said">said</span> <span word="in">in</span> <span word="a">a</span> <span word="statement">statement</span>.</p><p><span word="The">The</span> <span word="El">El</span> <span word="Nino">Nino</span> <span word="phenomenon">phenomenon</span> <span word="occurs">occurs</span> <span word="every">every</span> <span word="two">two</span> <span word="to">to</span> <span word="seven">seven</span> <span word="years">years</span>, <span word="when">when</span> <span word="the">the</span> <span word="prevailing">prevailing</span> <span word="trade">trade</span> <span word="winds">winds</span> <span word="that">that</span> <span word="circulate">circulate</span> <span word="surface">surface</span> <span word="water">water</span> <span word="in">in</span> <span word="the">the</span> <span word="tropical">tropical</span> <span word="Pacific">Pacific</span> <span word="start">start</span> <span word="to">to</span> <span word="weaken">weaken</span>.</p><p><span word="WMO">WMO</span> <span word="pointed">pointed</span> <span word="out">out</span> <span word="Tuesday">Tuesday</span> <span word="that">that</span> <span word="since">since</span> <span word="February">February</span>, <span word="trade">trade</span> <span word="winds">winds</span> <span word="had">had</span> <span word="weakened">weakened</span> <span word="and">and</span> <span word="there">there</span> <span word="had">had</span> <span word="been">been</span> <span word="a">a</span> <span word="significant">significant</span> <span word="warming">warming</span> <span word="of">of</span> <span word="the">the</span> <span word="waters">waters</span> <span word="below">below</span> <span word="the">the</span> <span word="surface">surface</span> <span word="in">in</span> <span word="the">the</span> <span word="central">central</span> <span word="Pacific">Pacific</span>.</p><p>"<span word="While">While</span> <span word="there">there</span> <span word="is">is</span> <span word="no">no</span> <span word="guarantee">guarantee</span> <span word="this">this</span> <span word="situation">situation</span> <span word="will">will</span> <span word="lead">lead</span> <span word="to">to</span> <span word="an">an</span> <span word="El">El</span> <span word="Nino">Nino</span> <span word="event">event</span>, <span word="the">the</span> <span word="longer">longer</span> <span word="the">the</span> <span word="trade">trade</span> <span word="winds">winds</span> <span word="remain">remain</span> <span word="weakened">weakened</span>, <span word="and">and</span> <span word="subsurface">subsurface</span> <span word="temperatures">temperatures</span> <span word="stay">stay</span> <span word="significantly">significantly</span> <span word="warmer">warmer</span> <span word="than">than</span> <span word="average">average</span>, <span word="the">the</span> <span word="higher">higher</span> <span word="the">the</span> <span word="likelihood">likelihood</span>," <span word="it">it</span> <span word="said">said</span>.</p><p><span word="Two">Two</span> <span word="thirds">thirds</span> <span word="of">of</span> <span word="climate">climate</span> <span word="models">models</span> <span word="predicted">predicted</span> <span word="that">that</span> <span word="the">the</span> <span word="phenomenon">phenomenon</span> <span word="would">would</span> <span word="begin">begin</span> <span word="sometime">sometime</span> <span word="between">between</span> <span word="June">June</span> <span word="and">and</span> <span word="August">August</span>, <span word="with">with</span> <span word="a">a</span> <span word="few">few</span> <span word="suggesting">suggesting</span> <span word="it">it</span> <span word="could">could</span> <span word="start">start</span> <span word="as">as</span> <span word="early">early</span> <span word="as">as</span> <span word="May">May</span>, <span word="and">and</span> <span word="the">the</span> <span word="remainder">remainder</span> <span word="predicting">predicting</span> <span word="no">no</span> <span word="El">El</span> <span word="Nino">Nino</span> <span word="this">this</span> <span word="year">year</span>, <span word="it">it</span> <span word="said">said</span>.</p><p><span word="The">The</span> <span word="last">last</span> <span word="El">El</span> <span word="Nino">Nino</span> <span word="occurred">occurred</span> <span word="between">between</span> <span word="June">June</span> 2009 <span word="and">and</span> <span word="May">May</span> 2010.</p>
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