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Horizontal Phase Speed Distribution of Gravity Waves Observed in Mesospheric Temperature Maps
2015 CEDAR Workshop
  • Ahmad Talaei, Utah State University
  • Michael J. Taylor, Utah State University
  • Pierre-Dominique Pautet, Utah State University
  • Yucheng Zhao, Utah State University
  • Takashi S. Matsuda, Graduate University for Advanced Studies
  • Takuji Nakamura, Graduate University for Advanced Studies
Document Type
Seattle, Washington
Publication Date

The goal of the current work is to develop a method suitable for analyzing the horizontal phase speeds of atmospheric gravity waves from an extensive amount of gravity wave data obtained by the USU Advanced Mesospheric Temperature Mapper (AMTM) from Antarctica. The AMTM is a novel infrared digital imaging system that measures selected emission lines in the mesospheric OH (3,1) band to create intensity and temperature maps of the mesosphere. This analysis builds on the recent work by Matsuda et al 2014 using all-sky intensity data to investigate the horizontal phase speed distribution. In our analyses we applied this technique to measure spectrum from temperature maps with more limited 120 degree field of view but 24 hr. measurements at South Pole. The ground-based remote sensing temperature measurements have been obtained using the nighttime hydroxyl (OH) emission, which originates at an altitude of ∼87 km. The results are compared to intensity data and to conventional event analysis in which the phase fronts are traced manually


Poster was presented at the 2015 CEDAR Workshop in Seattle, Washington on June 2015.

The Advanced Mesospheric Temperature Mapper was designed under the Air Force DURIP grant F49620-02-1-0258 and operated through the NSF Grant No. 1042227, for the instrument located in Logan, and the OPP Grant Nos. 0542164 and 1143587, for the instrument running at the South Pole Station.

Citation Information
Ahmad Talaei, Michael J. Taylor, Pierre-Dominique Pautet, Yucheng Zhao, et al.. "Horizontal Phase Speed Distribution of Gravity Waves Observed in Mesospheric Temperature Maps" 2015 CEDAR Workshop (2015)
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