Ozone Hole
A severe depletion of stratospheric ozone over Antarctica that occurs each spring. The possibility exists that a hole could form over the Arctic as well.
Ozone Hole- A thinning of the ozone layer over Antarctica, which occurs each spring.
Partly Cloudy- Sky condition when between 3/10 and 7/10 of the sky is covered. Used more frequently at night.
Ozone Hole A large area of intense stratospheric ozone depletion over the Antarctic continent that typically occurs annually between late August and early October, and generally ends in mid- November.
The ozone hole grew in size through the 1980s and plateaued in the early 1990s. In the last three years the ozone hole has covered an area of up to 26 million square kilometres, nearly 3 times the area of Australia.
How deep is the ozone hole?
antarctic ozone hole"A phenomenon discovered in the mid-1980s that occurs in the winter-spring lower stratosphere over Antarctica.
Antarctic ozone hole A large area of significant stratospheric ozone depletion over the Antarctic continent that typically develops annually between late August and early October, and generally ends in mid-November.
Antarctic Ozone Hole: An extended area of extreme depletion of the ozone layerwhich forms over the southern polar region each austral spring (September through November).
When these products break down they destroy stratospheric ozone, creating the Antarctic Ozone Hole in the Southern Hemisphere spring (Northern Hemisphere autumn).
OZONE: Antarctic Ozone Hole expands in winter shrinks in summer. 3. OZONE: Been measured by the British since 1956. 4. OZONE: Concentration in stratosphere remains constant. 5. Ozone: Contains 3 Oxygen atoms (O3). 6.
The nitric acid in polar stratospheric clouds reacts with CFCs to form chlorine, which destroys ozone. These clouds can only form at temperatures below about -80°C, so the warmer Arctic region does not have a ozone hole.
Recently, it was discovered that in certain parts of the world, especially over the poles, stratospheric ozone was disappearing creating an ozone hole.StratusA low, generally gray cloud layer with a fairly uniform base.
 See also: Ozone, Atmosphere, Light, Earth, Weather
  
|
RSS
