Record Loss Of Ozone Over Antarctica This Year

[hatrack]

Recent analysis of satellite-based measurements by scientists from the National Institute of Water & Atmospheric Research (NIWA) shows that record amounts of ozone were destroyed over Antarctica in September this year.

On each day over the period 23 to 26 September the amount of ozone lost over Antarctica exceeded the previous daily record of 45.5 million tons recorded in 2000. On 25 September this year a record loss of 47.3 million tons was reached.

EDIT

The calculations are based on measurements made by satellite-based instruments operated by NASA and the European Space Agency. NIWA scientists have compared these measurements with measurements from ground-based instruments, including those operated by NIWA at Scott Base in Antarctica, and at NIWA’s atmospheric research laboratory at Lauder in Central Otago, and combined them to create a single, global, long-term database of ozone.

EDIT

Dr Bodeker said this ozone depleted air would spread out over the southern hemisphere, including New Zealand, at the end of November–early December when the ozone hole breaks up, and would lead to high UV levels during summer. ‘We expect the ozone hole to recover over the coming decades following international restrictions of CFC (chlorofluorocarbons) emissions, but the record ozone depletion measured this year shows that we haven’t reached the turning point yet.’"

EDIT/END

http://www.scoop.co.nz/mason/stories/SC0311/S00016.htm

[jus_the_facts]

1. The Coronal Mass Ejections we've had lately prolly play into this too....

....this article elaborates...

http://www.gsfc.nasa.gov/topstory/20010801solarproton.html


more about space weather here..

www.spaceweather.com



another article from 2000 where it states the largest antartic hole was studied...

http://www.gsfc.nasa.gov/topstory/20000908largest_ozone_hole.html