Antarctica’s ice melt isn’t consistent, new analysis shows
Sea-level predictions may need adjustment
Ohio State News
Antarctic ice is melting, contributing massive amounts of water to the world’s seas and causing them to rise – but that melt is not as linear and consistent as scientists previously thought, a new analysis of 20 years’ worth of satellite data indicates.
The analysis, built on gravitational field data from a NASA satellite system, shows that Antarctica’s ice melts at different rates each year, meaning the models scientists use to predict coming sea level rise might also need adjusting.
“The ice sheet is not changing with a constant rate – it’s more complicated than a linear change,” said Lei Wang, assistant professor of civil, environmental and geodetic engineering at The Ohio State University and lead author of the analysis. “The change is more dynamic: The velocity of the melt changes depending on the time.”
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This article was originally published on February 1, 2021 at news.osu.edu