Shop Windows to the Universe

Ready, Set, SCIENCE!, by the National Research Council, focuses on K-8 science classsrooms. Check out the other publications in our online store, as well as classroom materials.
TOMS's image of ozone hole
Click on image for full size
NASA

1996 Antarctic ozone hole below record average size
News story originally written on October 25, 1996

NASA's Total Ozone Mapping Spectrometer instruments (TOMS) aboard NASA Earth Probe satellite and Japanese Advanced Earth-Observing Satellite (ADEOS) have detected substantial depletion of ozone levels over Antarctica.

The average size of the ozone hole over Antarctica has been alarmingly almost as large as in 1993, the year the ozone hole depletion peaked. However, ozone concentrations are higher than the record low values seen in September 1994.

The average size of the ozone hole during this year was 8.3 million square miles, similar to observations in the last four years. The largest observed average size of the ozone hole was in 1993, at 8.5 million square miles. This year the ozone hole reached a one-day peak size on Sept. 7, 1996, of about 10 million square miles, then quickly shrunk to values of less than 8.5 million square miles. The previous largest one-day peak size hole was 9.4 million square-miles on Sept. 27, 1992. In comparison, the surface area of North America is 8.1 million square-miles while Antarctica has a surface area of 5.4 million square-miles.


Shop Windows to the Universe Science Store!

Our online store includes fun classroom activities for you and your students. Issues of NESTA's quarterly journal, The Earth Scientist are also full of classroom activities on different topics in Earth and space science!

Windows to the Universe Community

News

Opportunities

You might also be interested in:

Traveling Nitrogen Classroom Activity Kit

Check out our online store - minerals, fossils, books, activities, jewelry, and household items!...more

Several tornadoes hit Arkansas, 24 killed

Several severe thunderstorms hit the U.S. over the weekend, wreaking havoc on the Midwestern and Southern states. Fourteen tornadoes hit Arkansas on Saturday, March 1, 1997, killing 24 people and injuring...more

Severe thunderstorms cause flooding, deaths

Several severe thunderstorms hit the U.S. over the weekend, wreaking havoc on the Midwestern and Southern states. Storms on Saturday, March 1, have killed at least 21 in Kentucky, Mississippi, Ohio, Tennessee,...more

Tornadoes strike in Tennessee and Kentucky

Twelve tornadoes hit Tennessee early Saturday morning, injuring at least 44 people. Two people were killed when six more tornadoes touched down in Kentucky. The tornadoes came from a broad band of severe...more

Most recent global image of ozone concentration

NASA's instrument Total Ozone Mapping Spectrometer (TOMS) aboard Japanese Advanced Earth Orbiting Satellite (ADEOS) has provided the most recent image showing the total ozone concentration. Ozone is a...more

1996 Antarctic ozone hole below record average size

NASA's Total Ozone Mapping Spectrometer instruments (TOMS) aboard NASA Earth Probe satellite and Japanese Advanced Earth-Observing Satellite (ADEOS) have detected substantial depletion of ozone levels...more

Intergovernmental Panel on Climate Change 4th Assessment Report

The 4th Assessment Report Summary for Policymakers of the Intergovernmental Panel on Climate Change (IPCC) is scheduled to be released on February 2, 2007 in Paris, France. The IPCC has been established...more

Huge Oil Spill in Gulf of Mexico

A large oil drilling rig in the Gulf of Mexico caught fire and sank in April 2010. Eleven workers were killed and several others injured in the accident. After the oil rig sank, a huge oil slick formed...more

Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA