在日本，人们都在欣赏令人难以置信的紫色天空，但这是台风的迹象

在日本，人们都在欣赏令人难以置信的紫色天空，但这是台风的迹象

As Japan prepared to brace Typhoon Hagibis, Mother Nature put up a beautiful display to warn about the impending destruction. An electric purple sky. As mesmerizing as it was, this colorful blanket was followed by the devastating natural disaster that is already responsible for killing at least 40 people. The category 5 super typhoon is said to be the most powerful one to hit the country in half a century.

正当日本准备应对台风海贝斯时，大自然母亲展示了一幅美丽的图画，警告人们即将到来的破坏。一片紫色的天空。虽然这幅景象令人着迷，但色彩斑斓随后就发生了毁灭性的自然灾害，造成至少40人死亡，5级超级台风据说是半个世纪以来袭击这个国家的最强台风。

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The vivid tint is the result of a weather phenomenon called “scattering.” It occurs when the molecules and small particles in the atmosphere influence the direction of the light, causing it to scatter.

鲜艳的色彩是一种叫做“散射”的天气现象的结果。“当大气中的分子和小颗粒影响光的方向时，就会发生散射。

As heavy storms and rain wash away larger particles — which absorb more light and scatter wavelengths more evenly, resulting in muted hues — out of the air, the colors of the sky become more intense.

当暴风雨和雨水冲刷掉空气中较大的粒子时，天空的颜色就变得更加强烈。这些粒子吸收更多的光，使波长更均匀地分散，从而产生柔和的色调。

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As hundreds of thousands of people were receiving orders to evacuate, some of them started posting images of the bright purple and pink sky on social media.

随着数十万人接到疏散命令，其中一些人开始在社交媒体上发布亮紫色和粉红色的天空图片。

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The same phenomenon has occurred several times in the U.S. following major hurricanes as well.

同样的现象在美国也发生过几次。

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“As sunlight shines down to Earth, most of the colors of the spectrum are able to reach the surface uninterrupted,” meteorologist Lauren Rautenkranz said after Hurricane Michael in 2018. “But the shorter wavelengths, blue and violet, are scattered in every direction. This light bounces from particle to particle until it eventually reaches your eyes. But the sky doesn’t appear violet and blue because of our eyes’ limitations.”

2018年迈克尔飓风过后，气象学家劳伦·劳腾克兰兹说:“随着阳光照射到地球上，光谱中的大多数颜色都能不间断地到达地表。”但是短波长，蓝色和紫色，向各个方向散射。这种光从一个粒子反射到另一个粒子，最后到达你的眼睛。但由于我们眼睛的限制，天空不会呈现蓝紫色。”

“The light was scattered around the moisture in the air, causing the magical purple color.”

“光线分散在空气中的水分周围，形成了神奇的紫色。”

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As many as 110,000 personnel have been deployed from the fire department, self-defense force and police, expanding the search and rescue efforts, according to Cabinet Secretary Yoshihide Suga.

日本内阁官房长官菅义伟(Yoshihide Suga)说，消防部门、自卫队(self-defense force)和警方已经部署了11万名人员，扩大了搜救工作的范围。

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