Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Physical Sciences and Mathematics
Three-Dimensional Tomographic Reconstruction Of Mesospheric Airglow Structures Using Two-Station Ground-Based Image Measurements, V. P. Hart, T. E. Doyle, Michael J. Taylor, B. L. Carruth, Pierre-Dominique Pautet, Yucheng Zhao
Three-Dimensional Tomographic Reconstruction Of Mesospheric Airglow Structures Using Two-Station Ground-Based Image Measurements, V. P. Hart, T. E. Doyle, Michael J. Taylor, B. L. Carruth, Pierre-Dominique Pautet, Yucheng Zhao
All Physics Faculty Publications
A new methodology is presented to create two-dimensional (2D) and three-dimensional (3D) tomographic reconstructions of mesospheric airglow layer structure using two-station all-sky image measurements. A fanning technique is presented that produces a series of cross-sectional 2D reconstructions, which are combined to create a 3D mapping of the airglow volume. The imaging configuration is discussed and the inherent challenges of using limited-angle data in tomographic reconstructions have been analyzed using artificially generated imaging objects. An iterative reconstruction method, the partially constrained algebraic reconstruction technique (PCART), was used in conjunction with a priori information of the airglow emission profile to constrain the …
On The Nature Of Short-Period Mesospheric Gravity Wave Propagation Over Halley, Antarctica, K. Nielsen, Michael J. Taylor, R. E. Hibbins, M. J. Jarvis, J. M. Russell
On The Nature Of Short-Period Mesospheric Gravity Wave Propagation Over Halley, Antarctica, K. Nielsen, Michael J. Taylor, R. E. Hibbins, M. J. Jarvis, J. M. Russell
All Physics Faculty Publications
As part of a collaborative program between British Antarctic Survey and Utah State University, measurements were made using an all-sky airglow imager located at the U.K. Halley Station (76°S, 27°W) during the 2000 and 2001 austral winter seasons from April through to early September. A co-located imaging Doppler interferometer was utilized to obtain coincident wind measurements for a total of 171 wave events. This study comprises the first detailed climatological investigation of the propagation nature (freely propagating, Doppler ducted, or evanescent) of individual quasi-monochromatic, short-period wave events at a high southern latitude. Distributions of the derived vertical wavelength exhibit an …