01 Apr '11, 3pm

Surprising ozone layer observations from the far north. Arctic Ozone Loss [image]

Surprising ozone layer observations from the far north. Arctic Ozone Loss [image]

Recent observations from satellites and ground stations suggest that atmospheric ozone levels for March in the Arctic were approaching the lowest levels in the modern instrumental era. What those readings mean for the remainder of the year is unclear. But what they mean for the long-term is that the recovery from human-induced ozone depletion is an uneven climb. These maps of ozone concentrations over the Arctic come from the Ozone Monitoring Instrument (OMI) on NASA’s Aura satellite. The left image shows March 19, 2010, and the right shows the same date in 2011. March 2010 had relatively high ozone, while March 2011 has low levels. The large animation file (linked below the images) shows the dynamics of the ozone layer from January 1 to March 23 in both years. In mid-March, scientists from Germany’s Alfred Wegener Institute announced that Arctic ozone levels had been cut ...

Full article: http://earthobservatory.nasa.gov/IOTD/view.php?id=49874&s...

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Record-low ozone over the Arctic leads to high ...

e360.yale.edu 05 Apr '11, 3pm

05 Apr 2011: Record-Low Arctic Ozone Leads to High UV Radiation in Finland Click to enlarge WMO Arctic ozone cover, March ...

Two Low Pressure Systems, Northeastern Pacific [image] #NASA

Two Low Pressure Systems, Northeastern Pacific ...

earthobservatory.nasa.gov 03 Apr '11, 10pm

From the six trapezoidal windows in the International Space Station (ISS) cupola, astronauts have a field of view stretchi...