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

  • Released Friday, April 9, 1999
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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.

Tropical Winds in the Stratosphere as measured by HRDI from 1991 to 1996

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

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

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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