Antarctic ice expanding! New Study in journal Nature reveals ’85 years of glacier growth & stability

[rangerrebew]

Antarctic ice expanding! New Study in journal Nature reveals ’85 years of glacier growth & stability in East Antarctica’ – ‘Ice-sheet wide mass balance estimates start[ed] in late 1970s…have exhibited either an overall mass gain or been relative unchanged’


Early aerial expedition photos reveal 85 years of glacier growth and stability in East Antarctica



Published: 25 May 2024 - Mads Dømgaard,  Anders Schomacker,  Elisabeth Isaksson,  Romain Millan,  Flora Huiban,  Amaury Dehecq, Amanda Fleischer,  Geir Moholdt,  Jonas K. Andersen &  Anders A. Bjørk

Nature Communications: Our results demonstrate that the stability and growth in ice elevations observed in terrestrial basins over the past few decades are part of a trend spanning at least a century, and highlight the importance of understanding long-term changes when interpreting current dynamics. ... However, in Antarctica, the scarcity of historical climate data makes climate reanalysis estimates before the 1970s largely uncertain10,23, and observed trends cannot clearly be distinguished from natural variability24,25.

Currently, the earliest ice-sheet wide mass balance estimates start in the late 1970s3,6,7, and since then all the sub-regions examined in this study have exhibited either an overall mass gain or been relative unchanged.

https://www.climatedepot.com/2024/05/31/antarctic-ice-expanding-new-study-in-journal-nature-reveals-85-years-of-glacier-growth-stability-in-east-antarctica/

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2,000 kilometers of East Antarctic glaciers don’t look much different after 85 years and 1.6 trillion tons of carbon dioxide
By Jo Nova

It’s just another scientific study doomed to disappear
A Norwegian whaler paid for 2,200 aerial photos of East Antarctica in 1937. Since then humankind has emitted 91% of all the emissions we’ve ever produced and the world is facing an extinction level catastrophe and yet satellite photos show this 2,000 kilometer long section of East Antarctica hasn’t changed — or at least, not in any way related to our uptake of coal power or planes, trains, airconditioners and cars. Basically the human race emitted 1,600 billion tons of carbon dioxide which was supposed to warm the poles twice as fast as anywhere else, but there is still nothing to see here.

Belated Thanks to Tallbloke for the first article I saw on this.

2,000 km of Antarctic ice-covered coastline has been stable for 85 years
Using hundreds of old aerial photographs dating back to 1937, combined with modern computer technology, the researchers have tracked the evolution of glaciers in East Antarctica. The area covers approximately 2,000 kilometers of coastline and contains as much ice as the entire Greenland Ice Sheet.

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.

Early aerial expedition photos reveal 85 years of glacier growth and stability in East Antarctica
A Existing historical glacier reconstructions (Byrd11, Moider32 and Peninsula31) and glaciers included in this study (frontal reconstructions n = 21, elevation reconstructions n = 12, velocity reconstructions n = 4), overlaid on 2003–2021 Antarctic annual elevation change from Smith et al5., with MEaSUREs basin72

Imagine the fuss if these old photos showed a glacier melting?

https://joannenova.com.au/2024/06/2000-kilometers-of-east-antarctic-glaciers-dont-look-much-different-after-85-years-and-1-6-trillion-tons-of-carbon-dioxide/