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Monday, 10 May 2021 16:02

Vilfand praised the discovery of "heat bombs" in the Arctic

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"Heat bombs" affect the melting of ice in the Arctic, but it is impossible to consider "bombs" as the main cause of the melting of Arctic ice, since this natural mechanism worked long before climate change, explained Roman Vilfand, scientific director of the Hydrometeorological Center.
Earlier, an article was published by the Scripps Institution of Oceanography (USA), in which American, British and German scientists investigated how the waters move from the Pacific to the Arctic Ocean. At the same time, the study talked about "heat bombs" that penetrate the Arctic and destroy sea ice.
Scientists have discovered that there are large volumes of warm water under the surface water in the Pacific Ocean. They are the "bombs", because when they float to the surface, the ice is destroyed, " said Vilfand. Vilfand explained that scientists were able to accurately describe how water flows from the Pacific and Atlantic Oceans to the Arctic Ocean, which is very little studied. The scientist noted that it is impossible to say that the reduction of ice in the Arctic is due to" heat bombs "and that" bombs " are a key manifestation of climate change in the Arctic.
As Vilfand explained, on the surface of the Pacific and Atlantic oceans, the water is salty due to the constant evaporation of water from the surface, and the fresh part evaporates. Therefore, the salt content on the surface is significant. In the Arctic Ocean, it is much smaller.
"It is there (under the ice of the Arctic Ocean - ed.) cold and fresh, and on the surface of the Pacific Ocean - salty and warm ... Salt water is denser than fresh, so when more salty waters of the Pacific Ocean come through the Bering Strait, they sink, as if diving under the colder water that comes into contact with the ocean… There are really large volumes of warm water circulating there, they seem to come to the surface, and the ice begins to melt, " Vilfand explained.
He noted that the same situation is developing with the ingress of water from the Atlantic Ocean into the western sector of the Arctic.
"Can this lead to an acceleration of warming in the Arctic Ocean? Due to what, this is not a process that has just begun. This has always been the case, so you need to be more calm. All the factors (warming - ed.) that exist are evaluated. The main problem is greenhouse gases, " Vilfand added.

Source: https://ria.ru/20210507/arktika-1731372347.html

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