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Thursday, August 11, 2022

Earth’s temperature will be affected by Tonga volcanic eruption, NASA warns

when Volcano Tonga Erupted, on January 15, sent a tsunami that traveled around the world and caused a sonic explosion that swirled around the planet twice, revealed National Aeronautics and Space Administration (NASA).

According to NASA, this underwater explosion, South Pacific Ocean, It also released a huge plume of water vapor into Earth’s stratosphere, enough to fill more than 58,000 Olympic swimming pools. However, the large amount of water vapor ejected by volcanoes may be enough to temporarily affect Earth’s temperature.

“We’ve never seen anything like this,” he said. Louis Millen, atmospheric scientist of NASA Jet Propulsion Laboratory in Southern California.

In the study, published in Geophysical Research Letters, Milne and his colleagues estimate that the Tonga eruption sent about 146 teragrams (1 teragram equals one trillion grams) of water vapor into Earth’s stratosphere, which is about 10 percent of the pre-existing water. Is equal. Atmosphere.

This is about four times the amount of water vapor that scientists estimate erupted in the stratosphere from the 1991 eruption of Mount Pinatubo in the Philippines.

How can the eruption of Tonga volcano cause damage to the Earth?

Volcanic eruptions rarely put much water into the stratosphere. In from 18 years NASA is taking actionOnly two other eruptions—the 2008 Kasatochi event in Alaska and the 2015 Calbuco eruption in Chile—sent appreciable amounts of water vapor to such high altitudes.

However, they were brighter than the Tonga event and quickly dissipated water vapor from the previous two eruptions. additional steam injection Tonga volcano can remain in the stratosphere for many years.

This excess water vapor can affect atmospheric chemistry, causing certain chemical reactions that may temporarily worsen ozone layer depletion. It can also affect surface temperature.

such as a massive volcanic eruption Krakatoa and Mount Pinatubo They typically cool the Earth’s surface by ejecting gases, dust, and ash that reflect sunlight into space. In contrast, Tonga volcano did not inject large amounts of aerosols into the stratosphere, and the massive amounts of water vapor from the eruption may have had little temporary warming effect, as the water vapor traps heat.

Great amount of water injected In the stratosphere this was probably only because the caldera of submarine volcanoes, a basin-like depression that usually forms after magma erupts or drains from a shallow chamber beneath the volcano, was at the correct depth in the ocean: about 490 feet (150 ft). m) down.

World Nation News Desk
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