Name: 什麼是噴射流？ (What Is The Jet Stream?)
Uploaded: 2020-10-23T23:41:51.000Z
Duration: 1 min 40 s

tis the season for big weather swings and invisible river of air located far above us, where jet airplanes fly is the culprit.

The eastern two thirds of the country has rainy weather and temperatures 10 to 15 degrees below average, while the western one third of the U.

我國東部三分之二的地區為陰雨天氣，氣溫比平均氣溫低10至15度，而西部三分之一的烏。

Continues to deal with the drought and hot temperatures and deadly fires.

Notice how there's a stark line here dividing the conditions that divide is the jet stream or strong currents of air created when warm and cold air masses meet.

注意這裡有一條鮮明的線條，劃分的條件是當冷暖氣團相遇時產生的噴氣流或強氣流。

It's located about 5 to 9 miles up in the air.

That puts it at flight level, about 35,000 ft.

這使它處於飛行高度，約35000英尺。

The Earth has four jet streams, one at the North Pole, one at the South Pole and then two in the middle near the equator.

地球上有四條噴流，一條在北極，一條在南極，然後中間靠近赤道的地方有兩條。

Due to the Earth's spin, the jet streams form them move from west to east, each one traveling on average at more than 100 MPH.

由於地球自轉，形成它們的噴氣流自西向東移動，每一個噴氣流平均時速超過100英里。

During the winter months, the polar jet streams can get up to 250 MPH.

在冬季的幾個月裡，極地噴射流的速度可以達到250英里/小時。

That wind energy can help produce monster storms like a winding river.

這種風能可以幫助產生怪物風暴，就像一條蜿蜒的河流。

They never travel on a perfectly straight line.

它們從來不會在一條完美的直線上行駛。

Oftentimes, when will dive a little farther south, forcing you to bring out the parka and snow shovel in the winter or bump north during the summer, causing you to turn the A C on ultrahigh.

很多時候，什麼時候會向南潛得更遠一些，迫使你在冬天拿出parka和雪鏟，或者在夏天向北顛簸，導致你把A C開得超高。

It also helps meteorologists like myself predict where a weather system will go, since jet streams helped steer where a storm will head.

它還能幫助像我這樣的氣象學家預測天氣系統的走向，因為噴氣流幫助引導了風暴的走向。

Imagine throwing a beach ball in a river and seeing where it ends up.

想象一下，把一個沙灘球扔進河裡，然後看看它的結局是什麼。

 It's the same concept with storm systems and the jet stream, and since it is located at 35,000 ft, it could help you get your destination a little faster when you're flying. 

這與風暴系統和噴氣流的概念是一樣的，由於它位於35000英尺，它可以幫助你在飛行時更快地到達目的地。

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什麼是噴射流？ (What Is The Jet Stream?)

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average

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