قالب وردپرس درنا توس
Home https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ Science https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ The rapid contraction of the Greenland Glacier is now rising again

The rapid contraction of the Greenland Glacier is now rising again



New research has found that a large Greenland glacier which has once been one of Earth's fastest shrinking, is now rising again. glacier located on the west coast of the island

NASA said that Jakobshavn was the fastest and fastest collapsed glacier of Greenland over the last 20 years. During this time, it is the only major source of weight loss in the Greenland ice sheet

Due to the size and activity of the glacier, researchers have used it to predict the rise in sea level in the world. NASA scientists and other organizations have watched Jakobshavn for many years.

Researchers participating in the survey say that the glacier has suffered great thickening since 201

6. It also flows slower and moves towards the ocean instead of withdrawing into the interior of the country. Cool water in the North Atlantic Ocean is said to have caused glacier changes. Cooler waters reach Western Disco Bay in the West of Greenland. The survey is based on information gathered from the Oceans in Greenland, or from the OMG mission and other observations.

Ala Hazander is a glacier scientist at NASA's Reactive Movement Laboratory in Pasadena, California. He helped guide the study.

"We did not believe at first," said Hazlander. "We have a lot of assumptions that Jakobshavn will just go on as it has been in the last 20 years

The research team has registered cooling water near Jakobshavn for three years in a row

Jason Box is an ice scholar and Climate with the Geological Survey of Denmark and Greenland He was not part of the study He told the Associated Press that the new discovery of Jakobshavn was surprising because it moved in the other direction for so long

  The wide view of the front of The Jakobshavn Glacier is shown by the research window (NASA / John Sonntag)

From the window of the NASA research aircraft, a wide view is shown on the front of Jacobashv's Glacier (19659012) Box: "The Good the news is that this is a reminder that it is not necessary to go so fast. "

" But it is, "he added.

A statement by NASA confirmed that even with the new growth of Jakobshavn, he "is still increasing global sea level rise." Scientists say this is because the glacier continues to lose more ice in the ocean than it has earned of snowfall.

Researchers participating in the study, as well as other scientists, believe that Jakobshavn is experiencing only short-term changes.

The main reason they think this is because the cold water affects the glacier was triggered by a climate system called the North Atlantic oscillation. This leads to natural, temporary cooling and warming of different parts of the ocean

The system is similar to the conditions in El Nino in the Pacific Ocean. El Nino is developing when the winds of South America are weakening. This allows hot water in the western Pacific to move east.

The study identifies a recent period that has led to "cooling the Atlantic Ocean as a whole". In addition, in 2016, additional cooling took place in the waters of the southwest coast of Greenland. he said. The cooler waters flowed along the shore and reached Jakobshavn.

Josh Willis is a leading researcher at NASA's Laboratory. He said recent research clearly shows that Jakobshavn "receives a temporary pause" from a long-standing climate model . But he warns that much of the existing research proves that the oceans are warming more and more.

"And when the oceans have such a huge effect on the glaciers, that's bad news for Greenland's ice sheet,

I'm Brian Lynn.

Brian Lynn wrote this story about VOA, studying English Ashley Thompson is an editor.

Test – Fast Shrinking Greenland Glacier

  Quiz - Fast Collapsing the Greenlandian Glacier that Grows Again

Start the Test to Find Out

________________________________________________________________

] – n. ice that moves slowly on a slope or valley or over a wide land area

retreat – v . goes from one place to another

v. I think something ing can be or is likely to be true but without actual proof n. something that causes someone to remember something

temporarily occurs only for a short or limited time

template the effect something has on something else


Source link