The ocean level global rate was calculated in a average of 0.31 centimeters per year.
In the early 1990 The ocean surface height. Based on this, it was calculated that the Global sea level increase rate It was from 0.31 centimeters per year.
At the time in which researchers from the POT They demonstrated in October 2024 that the rate had doubled during this 30 -year periodit was also considered important to compare this finding with projections made in the mid -1990saccording to two investigators of the University of Tulanewhose findings were published in Earth’s Future.
“We were quite surprised by the precision of those first projections, especially if we take into account what rudimentary that were the models at the time, compared to those available now”, He said Torbjörn Törnqvist, professor of geology in the Department of Earth and Environmental Sciences. “For anyone who question the role of humans in climate change, here it is found One of the best tests that we have understood for decades what is really happening and that we can make credible projections, ”he added.
The co -author Sönke Dngendorf, associate professor of the Department of River and Coastal Engineeringconfirmed that the current challenge is translate global information into projections adapted to the specific needs of interested parties in places.
“The sea level does not rise uniformly, but varies widely. Our recent study of this regional variability and the processes that underlie it are largely based on data from the data of the NASA satellite missions and the NOAA oceanic monitoring programs”Said Sönke Dngendorf.
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The 1990 sea rise projections
He Intergovernmental group of experts on climate change published an evaluation report in 1996. There, it was projected that the Most probable increase in global sea level over the next 30 years would be almost 8 cmtoo close to 9 cm confirmed.
However, I know underestimated the role of the melting of ice layers In more than 2 cm. At that time, little of that subject was known. He Ice flow from Greenland’s ice layer to the ocean also It was faster than expected.
Current projections on the future increase in sea level consider the possibility, although uncertain and unlikely, of a catastrophic collapse of the ice layer before the end of this century. Therefore, the low coastal regions of the United States would be particularly affected if said collapse occurred in Antarctica.
Source: Ambito
