爱沙尼亚佩普斯湖上的小冰丘 Hummock ice on Lake Peipus in Estonia (© Sven Zacek/Minden Pictures)

爱沙尼亚佩普斯湖上的小冰丘 Hummock ice on Lake Peipus in Estonia (© Sven Zacek/Minden Pictures)

当冰块变成了艺术 When ice imitates art

佩普斯湖

佩普斯湖是欧洲第五大湖泊，形成于数亿年前的古生代。这里的沙丘非常有名，当各方面条件恰好时，这些沙丘会在风吹时“唱歌”。在冬天，结冰的湖面上可能形成照片中的堆积冰。这些堆积冰是由浮冰受到缓慢不均匀的挤压而形成的。

Lake Peipus, Estonia

Lake Peipus, the fifth-largest lake in Europe, dates back hundreds of millions of years to the Paleozoic Era and is known for its sand dunes, which can 'sing' when the wind blows just right. In the winter the frozen lake surface may feature ice hummocks, as seen in this image. The hummocks are caused by slow, uneven pressure in the ice pack.