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Posted on 04/10/2021 1:27:06 PM PDT by BenLurkin
The melting rate of the Antarctic ice sheet is mainly controlled by the increase of ocean temperatures surrounding Antarctica. Using a new, higher-resolution climate model simulation, scientists from Utrecht University found a much slower ocean temperature increase compared to current simulations with a coarser resolution. Consequently, the projected sea-level rise in 100 years is about 25% lower than expected from the current simulations.
The new high-resolution model takes into account ocean eddy processes. An eddy is a large (10-200 km) swirling and turbulent feature in the ocean circulation, which contributes to the transport of heat and salt. Adding ocean eddies into the simulation leads to a more realistic representation of the ocean temperatures surrounding Antarctica, which is key for determining the mass loss of the Antarctic ice sheet.
The current climate model simulations, which do not take ocean eddies into account, project that the ocean temperatures around Antarctica are increasing under climate change. The new high-resolution simulation shows quite different behavior and some regions near Antarctica even cool under climate change...
The new high-resolution model projects a smaller mass loss as a result of ice-shelf melt: only one third compared to current climate models. This reduces the projected global sea-level rise by 25% in the upcoming 100 years...
It took the team about one year to complete the high-resolution model simulation on the national supercomputer at SURFsara in Amsterdam.
(Excerpt) Read more at phys.org ...
The 2004 Christmas Tsunami earthquake lifted the ocean floor upwards a dozen feet, displacing water across the oceans, resulting in a sea level rise of 0.004 inches.
Al Gore took credit for it.
Fifty-plus volcanic eruptions, with more joining weekly—the ash and sulfate aerosols will tend to cool things down.
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