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  • This episode was proudly made possible by the all-new 2015 Subaru Legacy. It's not just

  • a sedan, it's a Subaru.

  • I am El Nino, all other tropical storms must bow before me!! We all remember that right?

  • But other than Chris Farley, what is an el nino?

  • What's up DNewsers, it's Trace and this is DNews. Thanks for tuning in. If you can remember

  • 1997 and 98, you probably remember the media storm surrounding that year's El Nino. People

  • talked about it all the time, it was HUGE weather news, mainly because it was the strongest

  • El Nino in decades and there were a bunch in a row, which is rare.

  • You mightve heard that 2014 is also an El Nino year, though forecasters predict itll

  • be much weaker than the one in 97-98.

  • The name El Nino traces back to the 1600s, when fisherman off the coast of Peru who noticed

  • warmer water usually appeared around Christmas-time. They named it El Nino which means Little Boy,

  • or Christ Child in Spanish. How that water GOT there, however, is crazy.

  • In a normal year, the trade winds blow from east to west blowing the warm surface water

  • with it. These winds create a kind-of hill of warm water on Asian coasts. That leaves

  • the deeper, colder water to backfill on the west coast of the Americas. Basically, the

  • temperatures of the ocean and the atmosphere around the east-central equatorial Pacific

  • have a HUGE impact on weather patterns around the world. But sometimes these temperatures

  • fluctuate, in a cycle known as the El Nino Southern Oscillation, or ENSO.

  • In an El Nino year, for some reason, the trade winds are super weak, so they're not pulling

  • warm water to Asia. Because of the warmer Americas, the trade winds weaken even MORE

  • causing the ocean to warm even MORE!

  • That oscillation continues causing wetter winters over the southeastern United States,

  • and dryer weather in Indonesia and Australia; is also increases hurricanes in the eastern

  • Pacific while lessening those in the Caribbean. La Ninas, are the opposite of El Nino, the

  • trade winds get really strong so we get COLDER waters around the equatorial Pacific. Which

  • means warmer winters in the Southeast US with fewer hurricanes in the Pacific and more in

  • the Caribbean, plus wetter summers in Australia with more cyclones.

  • Guys, this shiz is a lot. It's a house of cards. When one thing changes, the whole system

  • goes nutso.

  • These ENSO events cause lots of problems with flooding, cyclones, food production, snowfall,

  • and so on. I mean, the water raining down on the Americas has to come from somewhere.

  • Thus, Australia will likely see a terrible drought this year, and India will probably

  • have a lessened monsoon season; meaning less food production for both countries. Not good,

  • and these ENSO systems can go on for more than a year!

  • The link between global warming and increased ENSO events is still being checked out, but

  • a study in Nature Climate Change says that global climate change is going to cause MORE

  • of these events, and they'll be stronger. I've seen questions on why we haven't invented

  • weather controlling technology yetthis is why! We JUST started to understand how

  • this all works 30 years ago.

  • The events happen as part of the natural interaction of water and wind in the Pacific ocean, and

  • thus can be monitored and predicted so governments can prepare. NOAA used to maintain 70 buoys

  • strategically placed across the oceans. I say used to, because thanks to recent budgetary

  • limitations they can't afford to maintain them anymore. Therefore, NOAA's network of

  • oceanographic weather information is breaking down. Sothere's that. It might not be

  • long until El Nino catches us by surprise, and that would be bad.

  • And before you ask, no we can't just invent something to control the weather. To do that,

  • we'd need to control ocean temperatures. Due to the amount of water IN the ocean, we'd

  • need to harness ALL the energy created in the exploding of 400,000 20-megaton Hydrogen

  • bombs. IF we could do that, we could heat the Pacific by choice. Seriously, don't get

  • your hopes up.

  • So, what is an El Nino? It's a cycle of warming and cooling that affects the weather of the

  • whole planet. It's nature, bro. Just nature.

  • And when it comes to the extremes of nature, we wanna thank Subaru for making this episode

  • possible. And especially the all-new 2015 Subaru Legacy. Every sedan has its benefits,

  • but only one combines them all. It’s not just a sedan. It’s a Subaru.

  • Anything else you want to know about? Any science questions you've really wanted to

  • get answered? Leave them in the comments here below the

  • video and be sure you subscribe for all the DNews every day of the week! You can also

  • follow me, Trace Dominguez and the show DNews on Twitter and I'll answer your science questions

  • too! Thanks for watching!

This episode was proudly made possible by the all-new 2015 Subaru Legacy. It's not just

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B1 中級

エルニーニョとは何か? (What Exactly Is El Niño?)

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    Wayne Lin に公開 2021 年 01 月 14 日
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