Posted on 01/10/2020 7:38:29 AM PST by yesthatjallen
Jakobshavn Glacier in western Greenland is notorious for being the world’s fastest-moving glacier. It is also one of the most active, discharging a tremendous amount of ice from the Greenland Ice Sheet into Ilulissat Icefjord and adjacent Disko Bay—with implications for sea level rise. The image above, acquired on June 6, 2019, by the Operational Land Imager (OLI) on Landsat 8, shows a natural-color view of the glacier.
Jakobshavn has spent decades in retreat—that is, until scientists observed an unexpected advance between 2016 and 2017. In addition to growing toward the ocean, the glacier was found to be slowing and thickening. New data collected in March 2019 confirm that the glacier has grown for the third year in a row, and scientists attribute the change to cool ocean waters.
“The third straight year of thickening of Greenland’s biggest glacier supports our conclusion that the ocean is the culprit,” said Josh Willis, an ocean scientist at NASA’s Jet Propulsion Laboratory and principal investigator of the Oceans Melting Greenland (OMG) mission.
SNIP
Willis and colleagues think the glacier is reacting to a shift in a climate pattern called the North Atlantic Oscillation, which has brought cold water northward along Greenland’s west coast. Measurements of the temperatures collected by the OMG team show that the cold water has persisted.
“Even three years after the cold water arrived, the glacier is still reacting,” Willis said. “I’m really excited to go back this August and measure the temperature again. Is it still cold? Or has it warmed back up?”
(Excerpt) Read more at earthobservatory.nasa.gov ...
Listen, Wuli. We don’t need to confuse things here with logic and reason.
The glacier was angry that day my friends
Oh, I know, but I get a kick out of it. LOL
When I was a kid the fear was of coarse, that industrial and vehicular pollution was causing global cooling. At that time the temperatures where we lived were in cyclic decline and the glaciers on nearby Mt. Raineer were growing. I had a science teacher who took volunteers on a field trip once a year to survey the Carbon Glacier which is the lowest glacier in the lower 48 states. It along with other glaciers on the mountain had been growing during that time period.
The park service has said that since 1970 the glaciers on Mt. Raineer have lost 18% of their volume. This is of course “cherry picking” the data because the glaciers lost a lot of ice during the 1930s which were warmer in rural areas in the US than they are today. But the 40s through the 70s were cooler and the glaciers advanced. Almost more important however is the amount of precipitation falling on them and whether it is rain or snow which depends largely on the time of the year that it comes down.
It used to be quite easy to get a view of the Carbon Glacier which has not changed a great deal since I was a kid. But the park service has not repaired the road that goes up to it for the last 20 or so years so it has been an additional 5 miles of hiking each way to see it. The roads that have good views of southern facing glaciers which have receded more in the last few years have been kept in good repair.
Absolutely, The atmospheric cells are actually closed systems like an A/C system. They extract heat from one half the system making it cooler and then disperse that heat in the other half of the system making it warmer. But they are not static and move the cooler warmer areas around randomly influenced by wind currents and ocean currents.
Fimbulvetr
Thanks for the chart.
Possibly. But when they brought all that coke up there and used the ocean to cool their drinks they drew heat out of the environment, cooling the area and causing the glacier to grow.
How can this be???? Great will be angry! Lies! We are all going to die in 10 years or fewer.
How can this be???? Greta will be angry! Lies! We are all going to die in 10 years or fewer.
...and...suddenly...IT’S WEATHER NOT CLIMATE!!!
“This glacier must be punished, although I’m not quite sure how”
Yellow snow?
“Dreamed I was an Eskimo....”
We can have no damned glacier growing!
My privilege, it is a good reference. There has been something strange happening the last couple thousand years. For some reason each of these cells are changing shape. They are becoming more rounded in profile away from the more oblong shape shown in this model.
This causes deeper penetration into the outer colder layers and less interaction with the lower warmer surfaces. This also widens the interaction zone variables where one cell meets another longitudinally. This change of shape very well could be making all kinds of never seen before weather anomalies.
What effect this could have in the long term is anyone’s guess. But it would stand to reason that deeper penetration into the upper cold layers could bring much more cooler air to the surface. But in turn the less time they spend down on the lower warmer surface means less heat it would extract.
So it could be a trade off that doesn’t make much difference, but the shape of these is definitely changing and has to have some sort of corresponding effect of some kind. I think it could be the reduced solar insolation over the last 8K that is changing the shape these cells.
Climate predictions are just as valid as economic predictions; that is, not at all.
This location on the west coast of Greenland is where the iceberg that sunk the Titanic is understood to have come from.
The Jews sank the Titanic....Iceberg, Goldberg, Greenberg...what’s the difference?
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