New Study Warns of ‘Ocean Memory’ Decline, Possible Rise of Extreme Weather

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New Study Warns of 'Ocean Memory' Decline, Possible Rise of Extreme Weather
New Study Warns of 'Ocean Memory' Decline, Possible Rise of Extreme Weather

Africa-Press – Sierra-Leone. The upcoming changes may increase the frequency of extreme weather in the future and hamper our ability to predict phenomena such as monsoons and marine heatwaves.

A team of scientists led by Hui Shi, a climate researcher from the Farallon Institute in Petaluma, warns of impending changes in the ocean environment over the coming decades.

In their study, the researchers argue that so called “ocean memory, the persistence of ocean conditions”, which is a “major source of predictability in the climate system beyond weather time scales”, is likely to experience a decline that is “predominantly driven by shoaling of the upper-ocean mixed layer depth in response to global surface warming”.

The team arrived at these conclusions after investigating sea surface temperatures in the upper-ocean mixed layer, as the shallow top layer of the ocean is known, which “exhibits a lot of persistence over time in terms of thermal inertia”, as ScienceAlert put it.

This thermal inertia effect, however, is now expected to decline during this century, as the shoaling effect ends up thinning the upper-ocean mixed layer, the scientists postulate.

These changes may increase the frequency of extreme weather in the future, and make it harder to predict phenomena such as monsoons, marine heatwaves (MHWs), and periods of extreme weather, the media outlet points out.

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