Zonal mean winds in the equatorial mesosphere and lower thermosphere observed by the High Resolution Doppler Imager

R. S. Lieberman; M. D. Burrage; D. A. Gell; P. B. Hays; A. R. Marshall; D. A. Ortland; W. R. Skinner; D. L. Wu; R. A. Vincent; S. J. Franke

doi:10.1029/93GL03120

Zonal mean winds in the equatorial mesosphere and lower thermosphere observed by the High Resolution Doppler Imager

R. S. Lieberman, M. D. Burrage, D. A. Gell, P. B. Hays, A. R. Marshall, D. A. Ortland, W. R. Skinner, D. L. Wu, R. A. Vincent, S. J. Franke

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

This paper presents analyses of mesospheric and lower thermospheric zonal mean winds observed by the High Resolution Doppler Imager (HRDI) on the Upper Atmosphere Research Satellite (UARS). Monthly averages of the equatorial zonal mean zonal winds are presented for January 1992 through June 1993. Equatorial zonal winds in the 70–90 km region are dominated by a semiannual oscillation (SAO), ranging from 30 m s⁻¹ (westerly) to −100 m s⁻¹ (easterly). At high latitudes the zonal wind variations are predominantly annual. Above 90 km, the low‐latitude flow is easterly at all times, punctuated by a small semiannual variation. This behavior may be related to the deposition of momentum by the diurnal tides.

Original language	English (US)
Pages (from-to)	2849-2852
Number of pages	4
Journal	Geophysical Research Letters
Volume	20
Issue number	24
DOIs	https://doi.org/10.1029/93GL03120
State	Published - 1993

ASJC Scopus subject areas

Geophysics
General Earth and Planetary Sciences

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10.1029/93GL03120

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title = "Zonal mean winds in the equatorial mesosphere and lower thermosphere observed by the High Resolution Doppler Imager",

abstract = "This paper presents analyses of mesospheric and lower thermospheric zonal mean winds observed by the High Resolution Doppler Imager (HRDI) on the Upper Atmosphere Research Satellite (UARS). Monthly averages of the equatorial zonal mean zonal winds are presented for January 1992 through June 1993. Equatorial zonal winds in the 70–90 km region are dominated by a semiannual oscillation (SAO), ranging from 30 m s−1 (westerly) to −100 m s−1 (easterly). At high latitudes the zonal wind variations are predominantly annual. Above 90 km, the low‐latitude flow is easterly at all times, punctuated by a small semiannual variation. This behavior may be related to the deposition of momentum by the diurnal tides.",

author = "Lieberman, {R. S.} and Burrage, {M. D.} and Gell, {D. A.} and Hays, {P. B.} and Marshall, {A. R.} and Ortland, {D. A.} and Skinner, {W. R.} and Wu, {D. L.} and Vincent, {R. A.} and Franke, {S. J.}",

year = "1993",

doi = "10.1029/93GL03120",

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volume = "20",

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journal = "Geophysical Research Letters",

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publisher = "John Wiley & Sons, Ltd.",

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TY - JOUR

T1 - Zonal mean winds in the equatorial mesosphere and lower thermosphere observed by the High Resolution Doppler Imager

AU - Lieberman, R. S.

AU - Burrage, M. D.

AU - Gell, D. A.

AU - Hays, P. B.

AU - Marshall, A. R.

AU - Ortland, D. A.

AU - Skinner, W. R.

AU - Wu, D. L.

AU - Vincent, R. A.

AU - Franke, S. J.

PY - 1993

Y1 - 1993

N2 - This paper presents analyses of mesospheric and lower thermospheric zonal mean winds observed by the High Resolution Doppler Imager (HRDI) on the Upper Atmosphere Research Satellite (UARS). Monthly averages of the equatorial zonal mean zonal winds are presented for January 1992 through June 1993. Equatorial zonal winds in the 70–90 km region are dominated by a semiannual oscillation (SAO), ranging from 30 m s−1 (westerly) to −100 m s−1 (easterly). At high latitudes the zonal wind variations are predominantly annual. Above 90 km, the low‐latitude flow is easterly at all times, punctuated by a small semiannual variation. This behavior may be related to the deposition of momentum by the diurnal tides.

AB - This paper presents analyses of mesospheric and lower thermospheric zonal mean winds observed by the High Resolution Doppler Imager (HRDI) on the Upper Atmosphere Research Satellite (UARS). Monthly averages of the equatorial zonal mean zonal winds are presented for January 1992 through June 1993. Equatorial zonal winds in the 70–90 km region are dominated by a semiannual oscillation (SAO), ranging from 30 m s−1 (westerly) to −100 m s−1 (easterly). At high latitudes the zonal wind variations are predominantly annual. Above 90 km, the low‐latitude flow is easterly at all times, punctuated by a small semiannual variation. This behavior may be related to the deposition of momentum by the diurnal tides.

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DO - 10.1029/93GL03120

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JO - Geophysical Research Letters

JF - Geophysical Research Letters

IS - 24

ER -

Zonal mean winds in the equatorial mesosphere and lower thermosphere observed by the High Resolution Doppler Imager

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