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arXiv:0706.2837 (astro-ph)
[Submitted on 19 Jun 2007]

Title:Improved detection of atmospheric turbulence with SLODAR

Authors:Michael Goodwin, Charles Jenkins, Andrew Lambert
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Abstract: We discuss several improvements in the detection of atmospheric turbulence using SLOpe Detection And Ranging (SLODAR). Frequently, SLODAR observations have shown strong ground-layer turbulence, which is beneficial to adaptive optics. We show that current methods which neglect atmospheric propagation effects can underestimate the strength of high altitude turbulence by up to ~ 30%. We show that mirror and dome seeing turbulence can be a significant fraction of measured ground-layer turbulence, some cases up to ~ 50%. We also demonstrate a novel technique to improve the nominal height resolution, by a factor of 3, called Generalized SLODAR. This can be applied when sampling high-altitude turbulence, where the nominal height resolution is the poorest, or for resolving details in the important ground-layer.
Comments: 17 pages, 8 figures
Subjects: Astrophysics (astro-ph)
Cite as: arXiv:0706.2837 [astro-ph]
  (or arXiv:0706.2837v1 [astro-ph] for this version)
  https://doi.org/10.48550/arXiv.0706.2837
Related DOI: https://doi.org/10.1364/OE.15.014844

Submission history

From: Michael Goodwin [view email]
[v1] Tue, 19 Jun 2007 17:05:19 UTC (861 KB)
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