[ti:Why Fewer Typhoons Are Hitting Taiwan, Philippines] [by:www.knnrug.live] [00:00.00]更多聽力請訪問51VOA.COM [00:00.04]Weather experts say Taiwan and the Philippines have experienced fewer typhoons in recent years. [00:10.88]The reduced storm activity may be be the result of higher water temperatures [00:17.40]and changes in upper-atmosphere winds. [00:22.84]Taiwan, which sits in the western Pacific, normally gets hit hard [00:29.24]by three to four typhoons each year between the months of June and October. [00:37.68]Each storm can kill five to 10 people and can cause major damage. [00:45.48]Taiwan's neighbor to the south, the Philippines, can get up to 20 typhoons per year. [00:54.24]The storms bring winds strong enough to blow down trees, and rainfall that can quickly turn streets into rivers. [01:04.60]They usually cause mass evacuations and widespread transportation problems. [01:13.24]The systems are called cyclones and hurricanes in other parts of the world. [01:21.08]For the past three years, Taiwan and the Philippines have missed their historical average typhoon counts. [01:31.20]Weather officials say one of the main reasons for this is higher water temperatures [01:37.47]in the mid-Pacific, where such storms form. [01:42.88]In addition, wind directions have changed in the upper-atmosphere [01:48.21]and are blowing more typhoons to the north. [01:53.32]Jason Nicholls is an international weather expert with U.S.-based forecasting company AccuWeather. [02:03.28]Nicholls told VOA that weather officials have seen a general warming of waters [02:09.79]in the Indian Ocean and in the Pacific in recent years. [02:16.48]Nicholls added that ocean temperatures in the central and eastern Pacific Ocean have been warming up since 2017. [02:27.24]He said this caused typhoons to form in areas to the north and east of Taiwan and the Philippines. [02:37.16]Upper-atmosphere winds pushed the storms north. [02:42.28]Most of this year's 21 typhoons in Asia moved north to reach Japan, South Korea and China. [02:52.76]The most severe, Typhoon Hagibis, killed 80 people in eastern Japan earlier this month. [03:03.04]Western Pacific waters have been somewhat cooler this year, Nicholls said. [03:09.76]This means fewer storms have formed near the eastern coasts of Taiwan or the Philippines. [03:18.56]Asia's deadliest storms each year often reach the Philippines, [03:23.80]including 2013's super-typhoon that killed 6,340 people. [03:32.96]So far this year, no major typhoons have hit the country. [03:37.88]It has experienced weaker tropical storms, however. [03:44.08]Chen Meng-shih is a forecaster with Taiwan's Central Weather Bureau. [03:51.44]He told VOA more northward-moving typhoons are likely to continue [03:57.68]as long as "Pacific Ocean high pressure is weak and higher north." [04:04.68]Many scientists have blamed rising ocean temperatures in the Pacific and Atlantic [04:11.08]on a combination of natural conditions and man-made climate change. [04:18.56]Man-made causes include the burning of coal, oil and gas. [04:26.00]I'm Bryan Lynn. 更多聽力請訪問51VOA.COM 11运夺金走势图遗漏