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尽管许多人一生中也没有见过真正的冰川,但冰川确实与我们的生活息息相关.一、冰川与冰川的形成冰川或称冰河,是由陆地上终年积雪积累演化而成的,具有可塑性,是能缓慢自行流动的天然冰体.冰川分布很广,全球冰川总面积约为2.9×10~7km~2,占陆地面积的11%.我国是世界第四大冰川国,面积达5.94×10~4km~2,约占亚洲冰川总面积的一半.冰川大都形成于极寒之地.地球的南极和北极终年严寒,“发育”了规模巨大的冰川.在高山上,随着海拔的升高,气温逐渐下降,当海拔超过一定的高度,气温就会降到0℃以下,固态降水才能常年存在,这一高度被称为雪线.雪线以上,固态降水不断积累,形成终
Although many people have never seen a real glacier in their lives, the glacier really has something to do with our life I. The Formation of Glaciers and Glaciers Glaciers or glaciers are the result of years of accumulation of snow on land. They are malleable, It is a natural ice body that can slowly flow on its own. The glacier is widely distributed and the total area of the glacier is about 2.9 × 10 ~ 7km ~ 2, accounting for 11% of the land area. China is the fourth largest glacier in the world with an area of 5.94 × 10 ~ 4km ~ 2, accounting for about half of the total area of glaciers in Asia. Most of the glaciers formed in the extremely cold. Earth’s Antarctic and Arctic year-round cold, “development” of a huge glacier. In the mountains, with the elevation Rise, the temperature gradually decreased, when the elevation exceeds a certain height, the temperature will drop below 0 ℃, solid precipitation can exist all the year round, this height is called the snow line above the snow line, the steady accumulation of solid precipitation, the formation of the final