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Tag: ozone layer

Dramatic Loss of Arctic Ozone

The European Space Agency, the UN’S World Meteorological Organization, and the Alfred Wegener Institute for Polar and Marine Research are among the leading authorities reporting a record depletion of the ozone layer over the Arctic.

According to the WMO, “depletion of the ozone layer … has reached an unprecedented level over the Arctic this spring because of the continuing presence of ozone-depleting substances…”

2011 Arctic Ozone Loss [Video and Image]

NASA’s Goddard Space Flight Center has produced this map and the following video representing the ozone loss over the Arctic over the beginning of 2010 and 2011. They show the concentrations of ozone over the Arctic as monitored by the Ozone Monitoring Instrument (OMI) onboard NASA’s Aura satellite.

Arctic on the Verge of Record Temporary Ozone Loss

Cooler temperatures in the ozone layer above the Arctic have recently caused a dramatic drop in ozone levels, suggesting that the region is in for a record loss of the trace gas that protects the planet’s surface from ultraviolet radiation from the sun.

Limited Nuclear War Could Halt Global Warming, Short Term, NASA Predicts

The scientists used a general circulation model known as ModelE (developed at NASA’s Goddard Institute for Space Studies, New York). The model calculates ocean-atmosphere coupling effects in addition to allowing varying aerosol inputs.

The initial input for the simulation was 5 teragrams (megatons) of black carbon particles injected into Earth’s upper troposphere. This is the estimated result of the surface detonation of 100 Hiroshima-size bombs (each equivalent to 15K tons of TNT).

Global Hawk: NASA Readies New 'Robo Plane' to Probe Atmosphere [VIDEO]

The NASA/Global Hawk team, lead by Chris Naftel at the Dryden Research Center (Edwards Air Force base), is preparing for an important remote monitoring mission called the Global Hawk Pacific campaign, or GloPac, which will be comprised of four to five separate flights over the Pacific Ocean and the Arctic.