Skip to main content
Article
Evidence of the excitation of a ring-like gravity wave in the mesosphere over the Andes Lidar Observatory
Journal of Geophysical Research: Atmospheres
  • F. Vargas, Remote Sensing and Space Science Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL, United States
  • G. Swenson, Remote Sensing and Space Science Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL, United States
  • A. Liu, Department of Physical Sciences, Embry-Riddle Aeronautical University, Daytona Beach, FL, United States
  • Pierre-Dominique Pautet, Utah State University
Document Type
Article
Publisher
American Geophysical Union
Publication Date
8-16-2016
DOI
10.1002/2016JD024799
Disciplines
Abstract
On 23 March 2012, our all-sky imager recorded a concentric, ring-like gravity wave pattern. The wave arose within the area covered by images of both OH and O(1S) nightglow emissions taken at the Andes Lidar Observatory (ALO), Chile (30.3ÁS, 70.7ÁW). We have estimated the observed and intrinsic parameters of the event and located the wave source within the lower mesosphere altitude range using a reverse ray tracing method. By the analysis of GOES and LIS satellite images, we have not found evidence of neither convective nor lightning activity nearby ALO, indicating that the source of the ring-like wave was not directly in the troposphere. The absence of tropospheric activity and the height of the source of the event suggest that a secondary wave generation mechanism might be the cause of the ring-like wave. The secondary wave mechanism was likely triggered by a breaking, larger-scale primary wave excited by deep convection _1400ækm northeast of ALO over Bolivia, as determined by a forward ray tracing scheme. ©2016. American Geophysical Union. All Rights Reserved.
Citation Information
Vargas F., Swenson G., Liu A., and Pautet P.-D., Evidence of the excitation of a ring-like gravity wave in the mesosphere over the Andes Lidar Observatory, J. Geophys. Res. Atmospheres, 121, doi:10.1002/2016JD024799, 2016