Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.astronet.ru/db/xware/msg/1193848
Дата изменения: Mon Oct 6 10:40:57 2003
Дата индексирования: Tue Dec 25 15:52:03 2007
Кодировка:
A Near Record Ozone Hole in 2003
Astronomy Picture of the Day
    


A Near Record Ozone Hole in 2003
<< Yesterday 6.10.2003 Tomorrow >>
A Near Record Ozone Hole in 2003
Credit: SVS, TOMS, NASA
Explanation: As expected, the ozone hole near Earth's South Pole is back again this year. This year's hole, being slightly larger than North America, is larger than last year but short of the record set on 2000 September 10. 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 relatively large of the ozone hole this year, however, is attributed partly to colder than normal air in the surrounding stratosphere. The above picture of the ozone hole was taken on September 11 by TOMS on board the orbiting Earth Probe satellite.

January
February
March
April
May
June
July
August
September
October
November
December
 < October 2003  >
Mo Tu We Th Fr Sa Su


12345
6789101112
13141516171819
20212223242526
2728293031

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.

Based on Astronomy Picture Of the Day

Publications with keywords: ozone hole
Publications with words: ozone hole
See also: