All Physics Faculty Publications

Document Type

Article

Journal/Book Title/Conference

Applied Optics

Volume

36

Issue

29

Publisher

Optical Society of America

Publication Date

10-1997

First Page

7374

Last Page

7385

DOI

10.1364/AO.36.007374

Abstract

A technique to analyze short-period (<1 hour) gravity wave structure in all-sky images of the airglow emissions is described. The technique involves spatial calibration, star removal, geographic projection, regridding, and flat fielding of the data prior to the determination of the horizontal wave parameters (wavelength, velocity, and period), by use of standard two-dimensional Fourier analysis techniques. The method was developed to exploit the information that is now available with wide-field solid state imaging systems. This technique permits interactive and quantitative investigations of large, complex data sets. Such studies are important for investigating gravity wave characteristics, their interaction with the airglow emissions, and their geographic and seasonal variability. We study one event of this type here and present possible evidence of a nonlinear wave–wave interaction in the upper atmosphere.

Comments

Originally Published by the Optical Society of America in Applied Optics: http://www.opticsinfobase.org/abstract.cfm?URI=ao-36-29-7374

Publisher PDF is available for download through the link above.

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