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VOA标准英语2009-Severe Weather Pattern Threatens Asia-Pacifi

时间:2009-07-08 06:48:04

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Climatologists are warning that an El Nino weather pattern, which can spark severe floods, forest fires and droughts, could develop in the coming weeks across the Asia-Pacific region.
 
Heavy early morning fog hangs over Sydney Harbor Bridge, 04 Jun 2009

An El Nino event occurs when water temperature in the eastern part of the Pacific Ocean rises abnormally. The movement of warmer, moist air to the east leaves drier weather in the western Pacific.

The Climate Prediction Center in the United States has warned that after months of rising temperatures in the tropical Pacific Ocean, the onset1 of an El Nino pattern was becoming more likely between now and August. The water is now half a degree warmer than average.

Researchers at Australia's Bureau of Meteorology agree that an El Nino event is likely. They say if recent trends in Pacific climate patterns persist, there is a strong chance that an El Nino pattern will emerge in the coming months.
 
Australian farmers survey a dry creek2 bed on their drought stricken 100-hectare property near Toowoomba, west of Brisbane (File)

Such conditions could be disastrous3 for farmers in Australia's drought-prone southeast who can expect little relief from years of below average rainfall.

The effects of such a shift in weather patterns would be felt across Southeast Asia.

Professor Matthew England, director of the Climate Change Research Center at the University of New South Wales, says Indonesia would likely have drastically less rainfall.

"The effects on Indonesia are actually even stronger," he said. "If you look at how El Nino affects all the nations around the Pacific Rim4, Australia is often thought of prominently in that regard. But Indonesia and Southeast Asia generally see much drier conditions during El Ninos. In past El Ninos we have seen some very severe forest fires in Indonesia."

The most devastating5 El Nino occurred in 1997. It caused widespread drought in Australia and Indonesia as well as floods in Peru and Ecuador.

An El Nino event can also bring wetter weather to parts of the United States and can affect the monsoon6 season in India.

In an El Nino year, there are typically more hurricanes in the Eastern Pacific and, conversely, fewer such storms in the Atlantic.


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点击收听单词发音收听单词发音  

1 onset bICxF     
n.进攻,袭击,开始,突然开始
参考例句:
  • The drug must be taken from the onset of the infection.这种药必须在感染的最初期就开始服用。
  • Our troops withstood the onset of the enemy.我们的部队抵挡住了敌人的进攻。
2 creek 3orzL     
n.小溪,小河,小湾
参考例句:
  • He sprang through the creek.他跳过小河。
  • People sunbathe in the nude on the rocks above the creek.人们在露出小溪的岩石上裸体晒日光浴。
3 disastrous 2ujx0     
adj.灾难性的,造成灾害的;极坏的,很糟的
参考例句:
  • The heavy rainstorm caused a disastrous flood.暴雨成灾。
  • Her investment had disastrous consequences.She lost everything she owned.她的投资结果很惨,血本无归。
4 rim RXSxl     
n.(圆物的)边,轮缘;边界
参考例句:
  • The water was even with the rim of the basin.盆里的水与盆边平齐了。
  • She looked at him over the rim of her glass.她的目光越过玻璃杯的边沿看着他。
5 devastating muOzlG     
adj.毁灭性的,令人震惊的,强有力的
参考例句:
  • It is the most devastating storm in 20 years.这是20年来破坏性最大的风暴。
  • Affairs do have a devastating effect on marriages.婚外情确实会对婚姻造成毁灭性的影响。
6 monsoon 261zf     
n.季雨,季风,大雨
参考例句:
  • The monsoon rains started early this year.今年季雨降雨开始得早。
  • The main climate type in that region is monsoon.那个地区主要以季风气候为主要气候类型。

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