Na temperature lidar measurements of gravity wave perturbations of wind, density and temperature in the mesopause region

Journal Article · Mon Jul 01 04:00:00 EDT 1991 · Geophysical Research Letters (American Geophysical Union); (United States)

DOI:https://doi.org/10.1029/91GL01517· OSTI ID:5566316

She, C Y; Yu, J R; Huang, J W; Nagasawa, C ^[1]; Gardner, C S ^[2]

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1. Colorado State Univ., Fort Collins (United States)
2. Univ. of Illinois, Urbana (United States)

High resolution temperature profiles of the mesopause region above Fort Collins, CO (40.6{degree}N, 105{degree}W) were measured with a Na lidar on the nights of March 2-3 and April 15-16, 1990, during the ALOHA-90 campaign. This paper reports the initial scientific analysis of these data which were used to compute (1) the altitude profiles of relative atmospheric temperature perturbations, (2) the mean Brunt-Vaisala frequency in the mesopause region, and (3) the vertical shear variance of horizontal winds. On March 2-3 and April 15-16, the rms temperature perturbations were 5.7 % and 7.1 %, the average Brunt-Vaisala periods were 4.9 min and 4.6 min, and the wind shear variances were 878 (ms{sup {minus}1}/km){sup 2} and 967 (ms{sup {minus}1}/km){sup 2}, respectively.

• OSTI ID: 5566316
• Journal Information: Geophysical Research Letters (American Geophysical Union); (United States), Journal Name: Geophysical Research Letters (American Geophysical Union); (United States) Vol. 18:7; ISSN 0094-8276; ISSN GPRLA
• Country of Publication: United States
• Language: English

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