新的图像揭示了阿拉斯加冰川的急剧收缩

The retreat of Alaska’s Columbia glacier over the last 47 years can be seen in a new series of incredible images.

阿拉斯加的哥伦比亚冰川在过去47年的退缩可以在一系列令人难以置信的新图片中看到。

As Science News reports, NASA and the US Geological Survey have been capturing images of Earth since 1972, which is a record of images that allows researchers to examine the progression of ice over time.

据《科学新闻》报道，自1972年以来，美国国家航空航天局和美国地质调查局就一直在拍摄地球图像，这是一份图像记录，让研究人员能够研究冰随时间的变化。

That progression includes the flow and retreat of glaciers, large chunks of ice calving off and more, University of Alaska glaciologist Mark Fahestock told the outlet.

阿拉斯加大学的冰川学家马克·法赫斯托克在接受媒体采访时表示，这一过程包括冰川的流动和退缩、大块冰块的崩解等等。

Fahestock and his colleagues chose Landsat images of several glaciers, including the Columbia glacier and made them into a short movie.

法赫斯托克和他的同事选择了包括哥伦比亚冰川在内的几个冰川的Landsat图像，并将它们制作成了一部短片。

The resulting video shows that the glacier has retreated by more than 12 miles since about 1980.

由此产生的视频显示，自1980年以来，冰川退缩了超过12英里。

The images were presented at the American Geophysical Union’s annual meeting on Tuesday.

这些图像是在周二的美国地球物理联盟年会上展示的。