Meltwater lakes form on the surface of Greenland’s Petermann Glacier, seen here in a June 2019 Landsat image. A new study finds that the number – and elevation – of meltwater lakes in Greenalnd is increasing. How do scientists know? Earth’s glaciers and ice sheets as seen from space – some spanning nearly 50 years – are providing scientists with new insights into how the planet’s frozen regions are changing.

Learn More: Ice in Motion: Satellites Capture Decades of Change

Image Credit: NASA/USGS

在2019年6月的地球资源卫星图片中,格陵兰岛的彼得曼表面形成了融湖。一项新的研究发现,格陵兰岛融水湖的数量正在增加,融水湖的海拔也在增高。科学家是怎么知道的?从太空中看到的地球冰川和冰原——其中一些跨越了近50年——为科学家提供了了解地球冰冻区域如何变化的新视角。

了解更多:冰川的运动:卫星拍摄到的数十年的变化

影像来源:NASA/USGS

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