Rows of lakes teardrop-shaped in Antarctica that showed a surprising phenomenon the researchers. Mysteriously, the lakes were moving with a speed of 1.5 meters per day.
The lake is located on the George VI ice landscape, the massive ice floating in the Antarctic.
Glaciologist Doug MacAyeal at the University of Chicago, and researchers CH LaBarbera, realized the lake was able to move while studying satellite images of the 11 lakes in the landscape of ice, taken between 2001 and 2010.
"We put together 10 images for 10 years and made into a movie," MacAyeal said. "When we looked at the curve, it moves up to the lake shore."
The findings were very surprising. "We did some research with the expectation that is really contrary to what we observed," he said.
MacAyeal said he initially thought the lake was moving because of the expanse of the lake where the ice was moving too, when the flow of ice from the continent into the sea.
"But we actually found a series of lakes to the contrary, moving in strange ways, moving parallel to the coastline of George VI ice landscape," says MacAyeal.
Mechanisms that work in this phenomenon actually is something commonly found on the dining table or television advertising, which is the movement of liquid chocolate or syrup. Chocolate or syrup that is a stretch of ice and flowing horizontally, hit and settles around Alexander Island, the island was covered with ice. When the ice freezes around the island, also contributed to the lake ice.
In recent years, floating ice shelf is in the spotlight to the researchers who are trying to find the relationship between climate change and sea level rise. *** [LIVESCIENCE | KORAN TEMPO 3783]
 |
| A satellite shot of one of the lakes. They appear every austral summer during the melt season, and freeze over in winter. (Picture from: http://www.livescience.com/) |
Glaciologist Doug MacAyeal at the University of Chicago, and researchers CH LaBarbera, realized the lake was able to move while studying satellite images of the 11 lakes in the landscape of ice, taken between 2001 and 2010.
"We put together 10 images for 10 years and made into a movie," MacAyeal said. "When we looked at the curve, it moves up to the lake shore."
The findings were very surprising. "We did some research with the expectation that is really contrary to what we observed," he said.
MacAyeal said he initially thought the lake was moving because of the expanse of the lake where the ice was moving too, when the flow of ice from the continent into the sea.
"But we actually found a series of lakes to the contrary, moving in strange ways, moving parallel to the coastline of George VI ice landscape," says MacAyeal.
Mechanisms that work in this phenomenon actually is something commonly found on the dining table or television advertising, which is the movement of liquid chocolate or syrup. Chocolate or syrup that is a stretch of ice and flowing horizontally, hit and settles around Alexander Island, the island was covered with ice. When the ice freezes around the island, also contributed to the lake ice.
 |
| Clouds drape mountains on Alexander Island. The topography creates many lakes on the George VI ice shelf. (Picture from: http://www.livescience.com/) |
0 comments:
Post a Comment