All Physics Faculty Publications

Title

Seasonal Variations of Temperature near the Mesopause from Fabry-Perot Interferometer Observations of OH Meinel Emissions

Document Type

Article

Journal/Book Title/Conference

Advances in Space Research

Volume

21

Issue

6

Publication Date

1997

First Page

843

Last Page

846

DOI

10.1016/S0273-1177(97)00685-6

Abstract

Doppler temperatures have been obtained in the mesopause region (85 km) above Bear Lake Observatory, Utah, over a period of two years, using the hydroxyl (OH) emission. The mid-latitude mesopause temperature decreases 60 K from a winter maximum of 220 K to a summer minimum of 160 K. ‘Sudden Mesopause Cooling’ Events of 30 K amplitude have been observed during mid-winter, one in January 1994 and two in January / February 1995, which appear to be associated with ‘stratospheric sudden warming’ phenomena. Tidal variations in temperature can be observed by taking hourly averages of data over a one-month period. The largest tidal amplitudes, of 10 – 20 K, occur during winter, while amplitudes in summer are smaller, 2 K.

Comments

Originally published by Elsevier in Advances in Space Research.Publisher's PDF available through remote link. May require subscription if user is not on the USU Network.

http://www.sciencedirect.com/science/article/pii/S0273117797006856