Chlorine Nitrate over the Arctic from CLAES (2/12/93 - 3/16/93)

  • Released Friday, April 9, 1999
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Key to understanding the chlorine chemistry in the polar stratosphere is the measurement of polar stratospheric clouds, chlorine monoxide, and the reservoir gas chlorine nitrate. Chlorine nitrate has been measured by the Cryogen Limb Array Etalon Spectrometer, CLAES. CLAES makes measurements by looking at infrared emission from cloud particles and trace gases. CLAES measurements help to show that the polar stratospheric clouds which form in the cold Arctic stratosphere have converted most of the chlorine nitrate into the radical chlorine monoxide. In 1992, UARS measurements showed conclusively that an an Arctic ozone hole is beginning to form.

Chlorine monoxide over the arctic as measured by CLAES from 2-12-93 to 3-16-93

Video slate image reads, "The Upper Atmosphere Research SatelliteData Globes AnimationsShowing the Arctic ozone hole".

Video slate image reads, "The Upper Atmosphere Research Satellite
Data Globes Animations
Showing the Arctic ozone hole".

For More Information

See http://svs.gsfc.nasa.gov/stories/UARS/index.html

Credits

Please give credit for this item to:
NASA/Goddard Space Flight Center Scientific Visualization Studio

This page was originally published on Friday, April 9, 1999.
This page was last updated on Wednesday, May 3, 2023 at 1:59 PM EDT.

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