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Proceedings Paper

SWIR sky glow imaging for detection of turbulence in the upper atmosphere
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Paper Abstract

It is well known that luminance from photo-chemical reactions of hydroxyl ions in the upper atmosphere (~85 km altitude) produces a significant amount of night time radiation in the short wave infra-red (SWIR) band between 0.9 and 1.7 μm wave length. This has been demonstrated as an effective illumination source for night time imaging applications. It addition it has been shown that observation of the spatial and temporal variations of the illumination can be used to characterize atmospheric tidal wave actions in the sky glow region. These spatiotemporal variations manifest themselves as traveling wave patterns whose period and velocity are related to the wind velocity at 85 km as well as the turbulence induced by atmospheric vertical instabilities. Ground to space observation systems especially those employing adaptive optics are adversely affected by high altitude turbulence and winds. In this paper we propose the use of sky glow observations to predict and characterize image system degradation due to upper atmosphere turbulence.

Paper Details

Date Published: 12 August 2010
PDF: 6 pages
Proc. SPIE 7816, Advanced Wavefront Control: Methods, Devices, and Applications VIII, 78160K (12 August 2010); doi: 10.1117/12.862439
Show Author Affiliations
David Dayton, Applied Technology Associates (United States)
Rudy Nolasco, Applied Technology Associates (United States)
Jeff Allen, Applied Technology Associates (United States)
Mike Myers, Air Force Research Lab. (United States)
John Gonglewski, Air Force Research Lab. (United States)
Gregory Fertig, Air Force Research Lab. (United States)
Dennis Burns, Textron Defense Systems Kauai (United States)
Ishan Mons, Textron Defense Systems Kauai (United States)

Published in SPIE Proceedings Vol. 7816:
Advanced Wavefront Control: Methods, Devices, and Applications VIII
David C. Dayton; Troy A. Rhoadarmer; Darryl J. Sanchez, Editor(s)

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