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Eddie Bernard says forecasting system worked during recent tsunami

EarthSky

Today how scientists can now accurately model how a tsunami will strike a coast – even half a world away.

當(dāng)海嘯還隔著半個(gè)地球那么遠(yuǎn)，科學(xué)家就能對(duì)海嘯襲擊海岸的過程建立精確模型。我們今天探討科學(xué)家是如何做到這一點(diǎn)的。

Eddie Bernard: A tsunami’s unique in that not only does it do destruction locally like the earthquake, but then it exports its damage.

艾迪伯納德：海嘯不同于地震，其獨(dú)特之處是不僅摧毀海嘯發(fā)生地，還會(huì)使危害擴(kuò)散。

That’s Dr. Eddie Bernard, director of the Pacific Marine Environmental laboratory in Seattle. He spoke to EarthSky about the tsunami that struck Chile in February in 2010, after a local magnitude 8.8 earthquake. Bernard said the tsunami then traveled throughout the Pacific.

艾迪伯納德是西雅圖太平洋海洋環(huán)境實(shí)驗(yàn)室的主任。在8.8級(jí)大地震后，2010年2月海嘯也襲擊了智利。伯納德說這次海嘯橫穿太平洋。

Eddie Bernard: It was going about the speed of a jet, about 500 mph in the open ocean.

艾迪伯納德：智利海嘯轉(zhuǎn)移的速度和噴氣式飛機(jī)相當(dāng)，在遼闊的海洋以500英里每小時(shí)的速度疾馳。

He said scientists at the Pacific Tsunami Warning Center in Hawaii were able to determine that this tsunami didn’t pose a danger to U.S. shores, 11 hours away. Experts were measuring the tsunami wave, as it moved away from Chile.

他說太平洋海嘯預(yù)警中心的科學(xué)家提前11小時(shí)預(yù)測(cè)這次海嘯不會(huì)威脅美國(guó)海岸。當(dāng)海嘯從智利開始轉(zhuǎn)移時(shí)，專家就測(cè)量了海嘯波浪。

Eddie Bernard: And first instrumented deep ocean buoy we have had arrived at that location about three hours after the tsunami was generated. The forecasts were very accurate and showed that we would indeed experience strong currents along coastal areas, but there would be little or minor flooding.

艾迪伯納德：海嘯發(fā)生3小后我們的第一個(gè)深海浮標(biāo)就測(cè)得了其位置。這次預(yù)測(cè)非常精準(zhǔn)，它表明海岸沿線確實(shí)會(huì)波濤洶涌，但不會(huì)有洪澇災(zāi)害。

That’s coastal areas of Hawaii and the western U.S.. Hawaii still chose to issue an emergency evacuation as an extra precaution.

這是夏威夷和美國(guó)西部地區(qū)的海岸線。夏威夷為防患于未然仍通知緊急疏散。

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