Challenging Modern Climate Narratives: Forgotten 1937 Aerial Photos Expose Antarctic Anomaly
https://scitechdaily.com/challenging-modern-climate-narratives-forgotten-1937-aerial-photos-expose-antarctic-anomaly/
I am not sure how the authors were able to publish this study, but it helps explain the lack of rise in sea level.Quote:
A study using a whaler's forgotten aerial photos from 1937 shows East Antarctica's ice has been stable and even grown, despite some early signs of weakening.
Extreme weather, melting glaciers, and rising sea levels are all indicators that the climate and the world's ice masses are in a critical state. However, a new study from the Department of Geosciences and Natural Resource Management at the University of Copenhagen reveals a positive anomaly.
Using hundreds of old aerial photographs dating back to 1937, combined with modern computer technology, researchers have tracked the evolution of glaciers in East Antarctica. This area, which spans approximately 2,000 kilometers of coastline, contains as much ice as the entire Greenland Ice Sheet. By comparing the historical aerial photos with modern satellite data, researchers determined the glaciers' movement and changes in size, revealing that the ice has not only remained stable but also grown slightly over the last 85 years, partly due to increased snowfall.
"We constantly hear about climate change and new melt records, so it's refreshing to observe an area of glaciers that has remained stable for almost a century," says PhD student Mads Dmgaard, the study's first author.
- Out of 2200 images photographed from seaplanes in 1937, 130 were selected for the analysis.
- The researchers combined the historical photos with modern satellite data to create 3D reconstructions of the glaciers.
- The Norwegian aerial images were supplemented with 165 aerial images of the same glaciers from Australian surveys conducted between 1950 and 1974. This allowed the researchers to examine the evolution of the glaciers over different periods and calculate historical ice flow speeds for selected glaciers.
- Compared to modern data, the ice flow speeds are unchanged. While some glaciers have thinned over shorter intermediate periods of 10-20 years, they have remained stable or grown slightly in the long term, indicating a system in balance.
