Retrieval of gravity wave parameters using half interferograms measured by CubeSats

Konstantin Ntokas; Martin Kaufmann; Jörn Ungermann; Peter Preusse; Martin Riese

doi:10.1117/12.2633460

30 September 2022 Retrieval of gravity wave parameters using half interferograms measured by CubeSats

Konstantin Ntokas, Martin Kaufmann, Jörn Ungermann, Peter Preusse, Martin Riese

Proceedings Volume 12236, CubeSats and SmallSats for Remote Sensing VI; 1223609 (2022) https://doi.org/10.1117/12.2633460
Event: SPIE Optical Engineering + Applications, 2022, San Diego, California, United States

Abstract

Gravity waves play a major role in mesospheric and lower thermospheric (MLT) dynamics and global observations of gravity waves in this region are of particular interest. To this end, a limb sounding spatial heterodyne interferometer (SHI) is used to retrieve temperature profiles which can be subsequently used to determine wave parameters. It resolves rotational structures of the O₂ atmospheric A-band airglow emission in the near-infrared. It is visible during day- and night-time, allowing a continuous observation. The image is taken by a 2D detector plane of 900 × 900 pixels. The horizontal axis is a superposition of spectral and spatial information; the vertical axis corresponds to different tangent altitudes. We propose to split the interferogram into two halves and perform a retrieval on both sides separately, thus obtaining two spatial tracks of independent temperature data. This can be utilized to obtain some information on 3D propagation characteristics of gravity waves. The feasibility and subsequent concerns of the practical usage of the interferogram split will be discussed.

Conference Presentation

Citation Download Citation

Konstantin Ntokas, Martin Kaufmann, Jörn Ungermann, Peter Preusse, and Martin Riese "Retrieval of gravity wave parameters using half interferograms measured by CubeSats", Proc. SPIE 12236, CubeSats and SmallSats for Remote Sensing VI, 1223609 (30 September 2022); https://doi.org/10.1117/12.2633460

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