Explanation: As expected, the ozone hole near Earth's South Pole is back again this year. This time, however, it's smaller than the past two years, and has an unusual double lobe structure. Ozone is important because it shields us from damaging ultraviolet sunlight. Ozone is vulnerable, though, to CFCs and halons being released into the atmosphere. International efforts to reduce the use of these damaging chemicals appear to be having a positive effect on their atmospheric abundance. The smaller size of the ozone hole this year, however, is attributed mostly to warmer than normal air in the surrounding stratosphere. The above picture of the ozone hole was taken on September 24 by TOMS on board the orbiting Earth Probe satellite.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: ozone hole - ozonovaya dyra Publikacii so slovami: ozone hole - ozonovaya dyra
Sm. takzhe: Ozonovaya dyra umen'shaetsya Pochti rekordnyi razmer ozonovoi dyry v 2003 godu Nauki o Zemle v Centre Kosmicheskih Poletov Goddarda, Centr Rasprostraneniya Dannyh Ozonovaya dyra "zarastet"? Samaya bol'shaya ozonovaya dyra Ozonovaya dyra nad Antarktidoi rasshiryaetsya