Earth ID: 832

Tropical Winds in the Stratosphere from HRDI (1991-1996)

Visualizations by Greg Shirah Released on April 9, 1999

The High Resolution Doppler Interferometer (HRDI) measures winds in both the stratosphere and mesosphere. The tropical winds in the stratosphere undergo a slow two year variation called the quasibianunual oscillation. This oscillation controls mixing throughout the stratosphere and HRDI has given us much detail on wind changes associated with this oscillation. The animation indicates the line of zero wind speed in the zonal tropical winds, the height at which the winds change from eastward to westward.

Video slate image reads, "The Upper Atmosphere Research Satellite
Graph Animations
A graph showing tropical winds in the stratosphere undergo a slow two year variation called the quasibianunual oscillation".

For More Information

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

Visualization Credits

Greg Shirah (NASA/GSFC): 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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https://svs.gsfc.nasa.gov/832

Mission:
Upper Atmosphere Radiation Satellite (UARS)

Data Used:

UARS/HRDI

1991-1996

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Keywords:
DLESE >> Atmospheric science
SVS >> Atmosphere >> Winds >> Circulation
NASA Science >> Earth