Observations of unstable atmospheric shear layers in the lower E region in the post-midnight auroral oval

Geophysical Research Letters

Volumn 24, Issue 15, 1997, Pages 1915-1918

  Larsen, M F ^a   Christensen, A B ^b   Odom, C D ^a  

^a CLEMSON UNIVERSITY   (United States)

^b AEROSPACE CORPORATION   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ATMOSPHERIC ELECTRICITY; ATMOSPHERIC TURBULENCE; WIND; EARTH SCIENCES; GEOPHYSICS;

POST MIDNIGHT AURORAL OVAL; UNSTABLE ATMOSPHERIC SHEAR LAYERS;

E REGION;

AURORAL OVAL; CRITICAL VALUE; EDDY DIFFUSIVITIES; NEUTRAL WINDS; RICHARDSON NUMBER; SHEAR LAYER;

EID: 0031213215     PISSN: 00948276     EISSN: None     Source Type: Journal    
DOI: 10.1029/97GL01942     Document Type: Article

References (8)

1. Christensen, A. B., J. H. Hecht, R. L. Walterscheid, M. F. Larsen, and W. E. Sharp, Depletion of oxygen in aurora: Evidence for a a local mechanism, J. Geophys. Res., in press, 1997.
2. Hedin, A.E., MSIS-86 thermospheric model, J. Geophys. Res., 92, 4649-4662, 1987.
3. Larsen, M. F., T. R. Marshall, I. S. Mikkelsen, B. A. Emery, A. Christensen, D. Kayser, J. Hecht, L. Lyons, and R. Walterscheid, Observations of E- and F-region neutral winds in a region of post-midnight diffuse aurora during the ARIA experiment, J. Geophys. Res., 100, 17299-17308, 1995.
4. Larsen, M. F., and I. S. Mikkelsen, The normal modes of the thermosphere, J. Geophys. Res., 92, 6023-6043, 1987.
5. Larsen, M. F., and R. L. Walterscheid, Modified geostrophy in the thermosphere, J. Geophys. Res., 100, 17321-17329, 1995.
6. Lyons, L. R., and R. L. Walterscheid, Generation of auroral omega bands by shear instabilities in the neutral winds, J. Geophys. Res., 90, 321, 1985.
7. Mikkelsen, I. S., and M. F. Larsen, A numerical modeling study of the interaction between the tides and the circulation forced by high-latitude plasma convection, J. Geophys. Res., 96, 1203-1213, 1991.
8. Walterscheid, R. L., L. R. Lyons, and K. E. Taylor, The perturbed neutral circulation in the vicinity of a symmetrical stable auroral arc, J. Geophys. Res., 90, 235-248, 1985.