Roundup: Ice Filing, Seas Falling, Rivers Flooding

Posted by on Sep 12, 2016

Spread the News:

This Week’s Roundup: Glaciers are being collected in Antarctica, “quietly transforming the Earth’s surface” and causing floods

A team of scientists, aware of the need to obtain ice cores from threatened glaciers, are working to create a glacier archive bank in Antarctica

From CNRS News:  “By capturing various components of the atmosphere, ice constitutes an invaluable source of information with which to examine our past environment, to analyze climate change, and, above all, to understand our future. Today, the science of ice cores lets us study dozens of chemical components trapped in ice, such as gases, acids, heavy metals, radioactivity, and water isotopes, to name but a few…”

“We plan to store the boxes in containers at a depth of 10 meters below the surface in order to maintain the glacier cores at an ambient temperature of – 54°C. The Antarctic is in fact an immense freezer with an ice sheet up to 4 kilometers thick, and is far removed from everything; in addition, it is not subject to any territorial disputes. The subterranean chamber will be large enough to house samples taken from between 15 and 20 glaciers.”

A lightweight core extractor that will measure glaciers.(Photo courtesy B. JOURDAIN/CNRS PHOTOTHEQUE).

A lightweight core extractor that will measure glaciers.(Photo courtesy B. JOURDAIN/CNRS PHOTOTHEQUE).

Read on here. 

Study finds that ancient melting glaciers are causing sea levels to drop in some places

From Smithsonian Magazine: “But a new study out in the Journal of Geophysical Research shows that in places like Juneau, Alaska, the opposite is happening: sea levels are dropping about half an inch every year. How could this be? The answer lies in a phenomenon of melting glaciers and seesawing weight across the earth called ‘glacial isostatic adjustment.’ You may not know it, but the Last Ice Age is still quietly transforming the Earth’s surface and affecting everything from the length of our days to the topography of our countries.”

A beach in Juneau, Alaska, where glacial isotactic adjustment has prompted sea levels to drop, not rise. (Photo courtesy Joseph, Flickr CC BY-SA).

A beach in Juneau, Alaska, where glacial isotactic adjustment has prompted sea levels to drop, not rise. (Photo courtesy Joseph, Flickr CC BY-SA).

For the full story, click here.

Glacial flood emerges along Iceland’s Skaftá river

From Iceland Magazine: “A small glacial flood is under way in Skaftá river in South Iceland. The Icelandic Met Office (IMO) warns travelers to stay away from the edge of the water as the flood water is carrying with it geothermal gases which can be dangerous….The discharge of Skaftá at Sveinstindur is presently 270 cubic metres per second. The flood is not expected to cause any downstream disruption.”

Outburst floods swept away a bridge and caused other damage in the river last year. (Photo Courtesy Egill/Iceland Mag).

Outburst floods swept away a bridge and caused other damage in the river last year. (Photo Courtesy Egill/Iceland Mag).

Learn more about the flood by reading more here.

 

 

 

 

Spread the News:

Leave a Reply

Your email address will not be published. Required fields are marked *


*