Thursday, May 26, 2022

NASA Reveals Dramatic Video of Alaska Glacier Melting


Hailey Warner
Hailey isn't the biggest fan of Winter, but she's doing her best to embrace the cold weather and snow. You can find her trying out new recipes, playing squash or writing editorials.

Alaska meltdown has shown how the planet is moving towards a no return situation. According to many scientific data, a scenario of a severe global climate crisis is pointed out.

NASA, through its space weather equipment, has shown a frightening panorama of the environment on Earth. Thus, in a newly published video, the melting of Alaskan glaciers and ice caps from space is shown. In some cases, with changes of almost 50 years.

Alaska is losing ice and gaining lakes

It was during the annual conference of the American Geophysical Union held in San Francisco that researchers showed a sequence of satellite images of Alaska, Greenland and Antarctica, including those from NASA’s Landsat geological study.

Thus, by aggregating data and images from this area, it was possible to see the dramatic changes that are occurring in the Alaskan glaciers. Among the cases shown is the dramatic decline of the Hubbard glacier.

Satellites map over the decades

As we can see from the images, satellites have been capturing images of the sites for many years. In Greenland, for example, the different satellite records show an acceleration in glacier decline since 2000.

As a result, the lagoons appear due to thawing. These are already outnumbering and appearing at higher heights over the past decade, which could accelerate the flow of ice.

Using images captured by NASA’s Landsat satellites , scenarios were compiled from 1972 to 2019. With these images, Glaciologist Mark Fahnestock of Alaska’s Fairbanks University composed a sequence of images from various glaciers in Alaska and Canadian Yukon Territory.

Although the images are not new, the video clearly shows the current scenario of the Alaskan glaciers. The weather has warmed, ice tends to arrive later and depart earlier.

Nevertheless, it is interesting to note that in the same region, glaciers respond differently to global warming.

“We now have this extensive and detailed record that allows us to see what happened in Alaska. When images like these are reproduced, we get an idea of ​​how dynamic these systems are and how unstable the ice flow is” – Fahnestock

As it turned out, Greenland glaciers retreated by an average of 5 km between 1985 and 2018. However, the fastest decrease occurred between 2000 and 2005. The data are conclusive, the ice is disappearing and giving way to a new one, but worrying, climate scenario.

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