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Their discovery, the thinning of the ozone layer over Antarctica, came to be known as the ozone hole. As news of the discovery spread, alarm rippled around the world.
24 de jul. de 2023 · Although there are ozone-depleting gases everywhere in the atmosphere, the ozone hole forms in the Antarctic because of the special weather conditions there. The very cold temperatures in the Antarctic can form ice clouds called polar stratospheric clouds.
1 de nov. de 2023 · The 2023 Antarctic ozone hole reached its maximum size on Sept. 21, according to annual satellite and balloon-based measurements made by NASA and NOAA. At 10 million square miles, or 26 million square kilometers, the hole ranked as the 12th largest single-day ozone hole since 1979.
Hace 3 días · What is the ozone hole? Each year for the past few decades during the Southern Hemisphere spring, chemical reactions involving chlorine and bromine cause ozone in the southern polar region to be destroyed rapidly and severely. This depleted region is known as the “ozone hole”.
What is the Ozone Hole? The ozone hole is not technically a “hole” where no ozone is present, but is actually a region of exceptionally depleted ozone in the stratosphere over the Antarctic that happens at the beginning of Southern Hemisphere spring (August–October).
The ozone hole is usually measured by reduction in the total column ozone above a point on the Earth's surface. This is normally expressed in Dobson units ; abbreviated as "DU". The most prominent decrease in ozone has been in the lower stratosphere.
13 de ene. de 2016 · The world's largest ozone hole—now shrinking—opens over Antarctica every year during local summer and shrinks in the winter. NASA. It was the void that changed public perception of the...
