18 16 why is there a strange phenomenon of river water freezing in summer?

There is no summer of 18 16 in history.

This year, it snowed in June, frozen in July and frosted in August. So 18 16 is also called "a year without summer", and some people even call this year "18 16".

This summer, the low temperature swept the world. The most serious is Europe, North America and Asia, and the annual average temperature in the northern hemisphere of the earth has dropped by nearly 3℃.

China, which was in Jiajing period at that time, was not spared, so there was a large-scale famine in Yunnan.

(18 16 Summer)

(Victims in abnormal climate)

(Mount Tambora erupts)

So, who is the chief culprit of the low temperature weather in this "year without summer"?

This was caused by the eruption of Mount Tambora in Sumatra, Indonesia the year before.

This unknown volcano is 285 1 m above sea level and located in the northern part of Sombawa Island, Indonesia. 18 15 On April 5th, Tamborra Mountain began to rumble. Soldiers stationed in Java, hundreds of kilometers away, thought that there was a war and immediately gathered in full gear, waiting for the order to go to the battlefield.

When the volcano erupts strongly, it throws as much as 150 cubic kilometers of dust and rocks into the air. The ejected volcanic ash and slag covered the Fiona Fang, which is 100 miles on Bawa Island, with a thickness of about 3.7 meters.

Hot magma pours down at hundreds of kilometers per hour. Everything we passed was burned down, and the forest and grassland at the foot of the mountain were burned up.

The eruption of Mount Tambora and its tsunami were the worst losses on record, with more than 654.38 million people killed. The erupting volcanic ash rushed into the stratosphere, forming a huge gas of about 400 million tons, which wrapped the earth layer by layer.

These gases, including steam, carbon dioxide, sulfur dioxide, methane, fluorine and chlorine, react in the atmosphere to generate sol, which blocks and reflects sunlight, making it difficult for the heat of the sun to reach the ground, thus leading to extremely low temperature weather, and finally forming the "year without summer" of 18 16.