NASA Ozone Watch: Latest status of ozone
4 days ago · 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. …
Nasa Ozone Watch: Ozone hole facts
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).
Ozone depletion - Wikipedia
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.
What happened to the world's ozone hole? - BBC
Ozone is mostly found in the stratosphere, a layer of the atmosphere between six and 30 miles (10-50 km) above the Earth's surface. This ozone layer forms an invisible protective shield...
Ozone Hole Continues Healing in 2024 - NASA Earth Observatory
Oct 30, 2024 · During the peak of ozone depletion season from September 7 through October 13, the 2024 area of the ozone hole ranked the seventh smallest since recovery began in 1992, when the Montreal Protocol, a landmark international agreement to phase out ozone-depleting chemicals, began to take effect.
NASA, NOAA Rank 2024 Ozone Hole as 7th-Smallest Since …
Oct 30, 2024 · This map shows the size and shape of the ozone hole over the South Pole on Sept. 28, 2024, the day of its annual maximum extent, as calculated by the NASA Ozone Watch team. Scientists describe the ozone “hole” as the area in which ozone concentrations drop below the historical threshold of 220 Dobson units.
Ozone Hole Continues Shrinking in 2022, NASA and NOAA …
On Oct. 5, 2022, those satellites observed a single-day maximum ozone hole of 10.2 million square miles (26.4 million square kilometers), slightly larger than last year. An explainer video outlining the fundamentals of what causes the Ozone Hole, its effects on the planet, and what scientists predict will happen in future decades.
Scientists said the ozone hole was recovering. That good news was ... - CNN
Nov 21, 2023 · They found that the depletion of ozone and deepening of the hole were a result of changes in the Antarctic polar vortex, a vast swirl of low pressure and very cold air, high above the...
World of Change: Antarctic Ozone Hole - NASA Earth Observatory
This thinning of the ozone layer over Antarctica came to be known as the ozone hole. This series of images shows the size and shape of the ozone hole each year from 1979 through 2019 (no data are available for 1995).
The Ozone Hole Was Super Scary, So What Happened To It?
Jan 13, 2016 · They discovered that ozone collects in a layer in the stratosphere, roughly 12 to 18 miles above the surface, and absorbs ultraviolet light. Because it blocks some radiation from...
- Some results have been removed