Over the past 85 years, 2,000 kilometers of Antarctic ice-covered coastline has grown slightly! – Watt?

From Notrickszone

By P Gosselin

Forgotten aerial photos of 1937 provide researchers at the University of Copenhagen with the most detailed picture of the evolution of ice in eastern Antarctica to date.

Results from a comprehensive analysis: ice has been stable and has even grown slightly over the past century.

Hat Tips: Climate News

Photo: Norwegian Polar Research Institute in Tromso

The area covers about 2,000 km of coastline and contains as much ice as the entire Greenland ice sheet.

Researchers from the Department of Earth Sciences and Natural Resources Management at the University of Copenhagen used hundreds of old aerial photos dating back to 1937, coupled with modern computer technology, which have tracked the evolution of glaciers in eastern East Antarctica and were able to determine whether glaciers retreat or upgrade or upgrade.

The study shows that ice not only remains stable, but has grown slightly over the past 85 years, partly due to increased snowfall.

“We keep hearing about climate change and new records of melting, so it's refreshing to see a glacier field that has remained stable for nearly a century,” said Dr. Mads Dømgaard, lead author of the study.

Solid historical photography records

Of the 2,200 images taken from the aquatic epithelium in 1937, 130 were selected for analysis. Researchers combine historical photos with modern satellite data to create a 3D reconstruction of the glacier. In addition, Norwegian air images were supplemented by 165 aerial images of the same glacier in the Australian survey conducted between 1950 and 1974. This allows researchers to examine the evolution of glaciers at different times and calculate the historical ice flow rate of selected glaciers.

The researchers found that ice flow rate had no change compared to modern data. While some glaciers have thinned in a shorter 10-20 years, they have remained stable or slightly grown over the long run, indicating a balance in the system.

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