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Error sources in SLODAR turbulence profile fitting.

Butterley, T. and Osborn, J. and Wilson, R. (2015) 'Error sources in SLODAR turbulence profile fitting.', Journal of physics : conference series., 595 (1). 012006.


This paper discusses some of the main error sources that affect use of the Slope Detection and Ranging (SLODAR) technique to recover atmospheric turbulence profiles from Shack-Hartmann wavefront sensor data. The most significant factor we address here is that of temporal sampling - we examine the effect of poorly-averaged slope correlations due to low wind speeds (or data sets that are insufficiently long) on spatial covariances of wavefront slopes. We discuss how this can affect the observed outer scale of the turbulence. A dual SCIDAR- SLODAR instrument is described that is ideally suited to exploring the impact of these effects and, potentially, correcting them. Some preliminary results from the instrument are presented.

Item Type:Article
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Publisher statement:Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Date accepted:No date available
Date deposited:30 May 2018
Date of first online publication:08 April 2015
Date first made open access:No date available

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