The Russian volcano in the distance dyed the sky purple.

Purple sunrise on Lake Isabel in the wilderness of Indian Peak, Colorado. (Photo: Glenn Randall) "kdsps" In June, a volcano erupted in the distance of Boulder, which made the sunrise shine and fell to the world with gorgeous purple tones. According to researchers at the University of Colorado, Mount Reycock spewed sulfur dioxide into the atmosphere, which led to the production of tiny particles called aerosols. These aerosols scatter sunlight and produce more purple at sunrise and sunset. Lars Carnaille, a research assistant at the Laboratory of Atmospheric and Space Physics at the University of California, said in a statement: "This makes you realize that you don't have to put a lot of aerosols into the stratosphere to change its composition." This is a relatively small volcanic eruption, but it is enough to affect most parts of the northern hemisphere.

Related lightning shows in Grimswath volcano.

Recok is located on the Kuril Islands chain in kamchatka peninsula. On June 22nd, accompanied by the eruption of steam and gas, it boomed into the air 1.2 miles (2 kilometers). According to the global volcanic activity plan of Smithsonian Institution 1924,

Because of its remote location, the only threat of volcanic eruption is that the plane may encounter dust clouds and volcanic ash, and this danger has decreased in the first few days after the incident. However, according to NASA's Earth Observatory, the volcanic plume did rise to the stratosphere about 6.8 miles (1 1 km) above kamchatka peninsula, which is the second layer of the Earth's atmosphere. According to Calippe's satellite data, volcanic ash plumes rose by 8 miles (13 km).

Kalnajs and his colleagues are interested in detecting signs of volcanic ash plumes in the stratosphere. In August this year, researchers launched a weather balloon near Laramie, Wyoming, and found that the aerosol layer in this atmosphere was 20 times thicker than normal after the eruption of Mount Reycock. The research team plans to publish their findings in a peer-reviewed journal later this year.

According to the size of the eruption, the aerosol in the atmosphere has a much greater influence on the sun than the sunset. For example, in 18 15, in today's Indonesia, Mount Tambora spewed a lot of sulfur dioxide. The resulting aerosol caused temporary global cooling, which led to strange weather and crop failure. So 18 16 is called "a year without summer". A study on 20 14 found that contemporary European artists captured some colorful sunsets caused by Tamborra. Similarly, the purple sunrise and sunset caused by Reykjavik also inspired nature photographers this summer. In August this year, Glen Randall, a Colorado wilderness photographer, photographed an amazing volcanic sunrise at Lake Isabel in the wilderness of Indian Peak, Colorado.

Although the eruption scale of Laycock volcano is much smaller than that of Tambora volcano, this event has well tested scientists' ability to monitor the atmosphere. Canajes said in a statement:

"A real outbreak will have a great impact on human beings, so this is what we need to prepare," said the scientist.

Frozen North: A stunning picture of Russia above the largest volcanic eruption in history 1 1. The magnificent night sky scenery of American Dark Sky Park was first published in Life Science magazine.