it from one year to the next are not unexpected.

NASA instruments have been measuring Antarctic ozone levels since the early
1970s. Since the discovery of the ozone hole in 1985, TOMS has been a key tool
for monitoring ozone levels above Earth.

TOMS-EP and other ozone-measurement programs are important parts of a global
environmental effort of NASA's Earth Science enterprise, a long-term research
program designed to study Earth's land, oceans, atmosphere, ice and life as a
total integrated system.

To learn more:
Goddard Institute for Space Studies
Upper Atmosphere Research Satellite
Halogen Occultation Experiment
Largest ozone hole detected by TOMS
TOMS ozone data and pictures
NASA Says Wet Upper Atmopsphere Delays Ozone Recovery
NASA Press Release: Wetter Atmopsphere May Delay Ozone Recovery

Inner Planets:MercuryVenusEarthMars
Outer Planets:JupiterSaturnUranusNeptunePluto
Other Bodies:MoonsAsteroidsComets The Voyagers


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