低纬度国家也有“极光秀”！ 出现“血色极光”的是怎么一回事？
▌热点短视频 ▌一说到极光，相信多数人脑海中都会浮现绿色，但最近“极光大爆发”的季节，许多地区看到的却是红、粉、紫色的极光，这到底是怎么一回事？
主持 | @Celes 美伶
#极光 #地球磁场 #绿色 #红色 #氮气 #氧气
#发射热点 #84hotspot #热点短视频
更多新闻资讯看这里 ▹ https://xuan.com.my/hotspot
主持 | @Celes 美伶
#极光 #地球磁场 #绿色 #红色 #氮气 #氧气
#发射热点 #84hotspot #热点短视频
更多新闻资讯看这里 ▹ https://xuan.com.my/hotspot
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NewsTranscript
00:00In the past few days, a lot of places around the world have put on a dazzling light show.
00:04And not only in high-density countries such as Finland, Norway,
00:08Germany, Switzerland, the United Kingdom, Spain and other European countries,
00:12but also in the United States, Canada, Argentina, India, the North of China and the Japanese North Coast,
00:17we have rarely seen the aurora.
00:19But why do many people see the purple and red light in the sky
00:22instead of the familiar green light
00:25when they see this beautiful aurora?
00:27The aurora is produced by the interaction between the solar wind and the magnetic field of the earth.
00:31Since May of this year, the sun has continued to explode violently,
00:34causing the largest geological movement in about 21 years.
00:37Therefore, in the past few days, many low-density areas
00:40have seen a rare aurora outbreak.
00:44For those of us who don't have the opportunity to feel this visual nostalgia,
00:48we may also be curious
00:49why there are so many green auroras in the northern hemispheres.
00:53And this time, in many areas,
00:54for example, the aurora observed in China is mainly red?
00:58In fact, the color of the aurora is related to different atmospheric particles and the process of light emission.
01:02The main factors that determine the color of the aurora
01:04depend on the amount of oxygen and oxygen in the atmosphere,
01:07and the amount of oxygen and oxygen is often related to the altitude.
01:11For example, the aurora above 240 km is mainly red,
01:14and the aurora above 100 km to 240 km is mainly green,
01:18and the aurora below 100 km is mixed with blue, purple or many other colors.
01:22Therefore, green aurora is the most common,
01:25but the color of the aurora is not only green.
01:27I hope this video can help you understand more about this astronomical phenomenon.
01:31You are also welcome to share the video to let more people see it.