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Proceedings Article

An imaging interferometer for satellite observations of wind and temperature on Mars, the Dynamic Atmosphere Mars Observer (DYNAMO)

[+] Author Affiliations
William E. Ward

Univ. of New Brunswick (Canada)

William A. Gault, Gordon G. Shepherd, Ian C. McDade, Jack C. McConnell, D Michelangeli, John Caldwell

York Univ. (Canada)

Neil Rowlands, Shiguang Wang

EMS Technologies Canada, Ltd. (Canada)

Proc. SPIE 4833, Applications of Photonic Technology 5, 226 (February 1, 2003); doi:10.1117/12.473823
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From Conference Volume 4833

  • Applications of Photonic Technology 5
  • Roger A. Lessard; George A. Lampropoulos; Gregory W. Schinn
  • Quebec City, Canada | June 02, 2002

abstract

To date there have not been any direct measurements of winds in the Martian atmosphere. Measurements such as these are needed in order to understand the nature of the circulation and the transport of constituents in the atmosphere of this planet. In this paper, a conceptual design for a small visible/near-IR imaging interferometer capable of fulfilling this need is described. The design is based on a similar successful instrument, the Wind Imaging Interferometer (WINDII), which flew in Earth orbit. The basic measurement set includes Doppler shifts (from which wind is derived), rotational temperatures, line widths and radiances of isolated lines in the O21Δg) band airglow and O(1S) airglow emission. The design challenges which were met in converting an instrument designed for terrestrial applications to one capable of flying to Mars and operating in conditions there include reducing the mass and power requirements and adapting the instrument to appropriate data rate and S/N requirements. The resulting instrument has a mass of approximately 15 kg, requires on average, 10 Watts of power and has a data rate of 32Mbits/day. In this paper the design of this instrument and how it accommodates the particular requirements of a Mars mission are described.

© (2003) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

William E. Ward ; William A. Gault ; Neil Rowlands ; Shiguang Wang ; Gordon G. Shepherd, et al.
"An imaging interferometer for satellite observations of wind and temperature on Mars, the Dynamic Atmosphere Mars Observer (DYNAMO)", Proc. SPIE 4833, Applications of Photonic Technology 5, 226 (February 1, 2003); doi:10.1117/12.473823; http://dx.doi.org/10.1117/12.473823


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