Earth ID: 838

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

Visualizations by Jesse Allen Released on April 9, 1999

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.

For More Information

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

Visualization Credits

Jesse Allen (Raytheon): Lead Animator
Mark Schoeberl (NASA/GSFC): Scientist

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

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Mission:
Upper Atmosphere Radiation Satellite (UARS)

Data Used:

UARS/CLAES

1993/2/12-1993/3/16

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This item is part of this series:
UARS

Keywords:
DLESE >> Atmospheric science
SVS >> Chlorine Nitrate
DLESE >> Environmental science
GCMD >> Earth Science >> Atmosphere >> Atmospheric Chemistry/Oxygen Compounds >> Ozone
NASA Science >> Earth

GCMD keywords can be found on the Internet with the following citation: Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 8.0.0.0.0