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Error sources in SLODAR turbulence profile fitting

Butterley, T.; Osborn, J.; Wilson, R.

Error sources in SLODAR turbulence profile fitting Thumbnail


T. Butterley

R. Wilson


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.


Butterley, T., Osborn, J., & Wilson, R. (2015). Error sources in SLODAR turbulence profile fitting. Journal of Physics: Conference Series, 595(1), Article 012006.

Journal Article Type Article
Online Publication Date Apr 8, 2015
Publication Date Apr 8, 2015
Deposit Date Jan 9, 2017
Publicly Available Date May 30, 2018
Journal Journal of Physics: Conference Series
Print ISSN 1742-6588
Electronic ISSN 1742-6596
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 595
Issue 1
Article Number 012006


Published Journal Article (1.1 Mb)

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Copyright 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.

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