新的圖像揭示了阿拉斯加冰川的急劇收縮

新的圖像揭示了阿拉斯加冰川的急劇收縮

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

阿拉斯加的哥倫比亞冰川在過去47年的退縮可以在一系列令人難以置信的新圖片中看到。

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.

據(jù)《科學新聞》報道，自1972年以來，美國國家航空航天局和美國地質(zhì)調(diào)查局就一直在拍攝地球圖像，這是一份圖像記錄，讓研究人員能夠研究冰隨時間的變化。

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.

阿拉斯加大學的冰川學家馬克·法赫斯托克在接受媒體采訪時表示，這一過程包括冰川的流動和退縮、大塊冰塊的崩解等等。

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選擇了包括哥倫比亞冰川在內(nèi)的幾個冰川的Landsat圖像，并將它們制作成了一部短片。

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

由此產(chǎn)生的視頻顯示，自1980年以來，冰川退縮了超過12英里。

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

這些圖像是在周二的美國地球物理聯(lián)盟年會上展示的。