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4 April 2019 AtmoCube A1: airglow measurements in the mesosphere and lower thermosphere by spatial heterodyne interferometry
Friedhelm Olschewski, Martin Kaufmann, Klaus Mantel, Tom Neubert, Heinz Rongen, Martin Riese, Ralf Koppmann
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Journal of Applied Remote Sensing, Vol. 13, Issue 2, 024501 (April 2019). https://doi.org/10.1117/1.JRS.13.024501
Abstract
The Institute for Atmospheric and Environmental Research at the University of Wuppertal and the Institute of Energy and Climate Research Stratosphere at Research Center Juelich developed a CubeSat payload for atmospheric research. The payload consists of a small interferometer for the observation of airglow near 762 nm. The line intensities of the oxygen A-band are used to derive temperatures in the mesosphere and lower thermosphere region. The temperature data will be used to analyze dynamical wave structures in the atmosphere. The interferometer technology chosen to measure the ro-vibrational structure of the O2 atmospheric band near 762 nm is a spatial heterodyne interferometer originally proposed by Connes in 1958. It can be designed to deliver extraordinary spectral resolution to resolve individual emission lines. The utilization of a two-dimensional imaging detector allows for recording interferograms at adjacent locations simultaneously. Integrated in a six-unit CubeSat, the instrument is designed for limb sounding of the atmosphere. The agility of a CubeSat will be used to sweep the line-of-sight through specific regions of interest to derive a three-dimensional image of an atmospheric volume using tomographic reconstruction techniques.
CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
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Friedhelm Olschewski, Martin Kaufmann, Klaus Mantel, Tom Neubert, Heinz Rongen, Martin Riese, and Ralf Koppmann "AtmoCube A1: airglow measurements in the mesosphere and lower thermosphere by spatial heterodyne interferometry," Journal of Applied Remote Sensing 13(2), 024501 (4 April 2019). https://doi.org/10.1117/1.JRS.13.024501
Received: 19 December 2018; Accepted: 8 March 2019; Published: 4 April 2019
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KEYWORDS
Mesosphere
Sensors
Thermosphere
Airglow
Satellites
Atmospheric modeling
Heterodyning
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