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Home https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ Science https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ High above Greenland's glaciers, NASA looks out at the melting ocean ice

High above Greenland's glaciers, NASA looks out at the melting ocean ice



NASA DC3 GREENLAND (Greenland) (AFP) – Skimming low over glittering white glaciers off the Greenland coast in a modified airplane from the 1940s, three NASA scientists led by an Elvis oceanographer, they were waiting for a probe to be dropped into the water below them.

They are part of the Oceans that melt Greenland – or OMG – a mission that has flown around the vast island for four summers, launching probes to collect data on how the oceans contribute to the rapid melting of Greenland's ice.

Dressed in a blue suit and thick sideburns that hint at his casual fun posing for Elvis, Joshua Willis, 44, is an oceanographer at NASA's Jet Propulsion Laboratory behind the project ̵

1; and with his wife's name

"We are considering a likely rise in sea level over the next hundred years and this is a huge threat to hundreds of millions of people around the world, so a little alarm and OMG are probably justified," he said.

Passing Against rocky fjords, dazzling glaciers and icebergs, several tens of feet (feet) rising from the water, Willis and crew alternating, dropping a 1.5-meter cylindrical probe and watching as the data comes in, showing the temperature on the ocean.

– "Ice cube under the hair dryer" –

Willis investigates how warmer layers of water near the shore come into contact with glaciers and how it affects how quickly they melt.

"Many people think of ice here as melting from warming air, sort of like a cube of ice under a hair dryer, but in fact the oceans also feed far off the edges of the ice," Willis said.

OMG examines the Greenland glaciers in winter. comparing it to the data they collect for the oceans over the summer over a five-year period, which Willis hopes will allow researchers to better predict sea level rise.

The island has three quarters bordering the Arctic Ocean and is 85 percent covered with ice – if thi s ice cover is tr it would disappear completely, it would raise the ocean level by seven meters (23 feet).

The Arctic region warmed twice as fast as the world average, and Greenland, a resource-rich Danish possession, became a focal point for climatic conditions. research – also the object of desire for US President Donald Trump, who is missing a trip to Denmark to reject his attempts to buy autonomous territory.

[19659002] – a "challenge" in Greenland –

NASA – best known for moon landing and space voyages – began exploring the Earth's climate more deeply than the 1970s, when the budget for interplanetary exploration was reduced using

today, it has more than a dozen orbiting satellites observing the Earth's seas , ice, land and atmosphere, along with missions such as OMG, which Willis hopes will provide data for better sea-level rise forecasts around the world. [19659002] At the rear of the redeveloped DC3, built in 1942 for the Canadian Air Force during World War II, project manager Ian McCubbin took his turn with a plastic probe-holding chute, awaiting the order to release it.

Sucked out into the cold air below, the four-meter cylinder, parachuted into the water and after a nervous wait, began transmitting data to the crew on the aircraft.

With 20 years' experience in flying with the JPL, McCubin also organizes mission logistics from the remote airports from which he departs in the summer.

"Dealing with Greenland's remoteness is a unique challenge," McCubin said during a break between launching probes, a baseball cap lowered over his eyes.

Limited communications and transport links and unpredictable island weather make it increasingly complex keeping the mission on the air, but McCubin said he was happy to deal with the difficulties.

"The relevance of this project makes it exciting to work, out of value for our society, our children, our children's children," he said .

– "Hard decisions ahead" –

Ian Fenty, an OMG investigator, sat in front of a laptop and bank electronics receiving signals from probes.

After each probe hit the water, the data began to be uploaded almost immediately to the small screen of the laptop on the dashboard table in front of Fenty.

"The data we collect is super valuable because it allows us to quantify for the first time quantitative changes in ocean temperature with the melting of the ice sheet," he said.

After two hours in the air along the coast of East Greenland, the aircraft turned and headed back to base in the remote village of Kulusuk, flying low over icebergs and whales in the sea below.

After the flight, Willis, dressed in Ray Bans, a leather jacket with a collar and guitar back, gave a performance of his Climate Rock-inspired dinner and guest reporters at the village hotel, explaining the difference between weather and climate.

For Willis, the song, like his work with OMG, is part of trying to get his message out on climate change and sea level.

"I feel like a climatologist, I have a responsibility to explain what we find to the world," he said.

"We have some difficult decisions ahead of us if we want to avoid the worst parts of climate change."


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