Correction of finite spatial and temporal sampling effects in stereo-SCIDAR

Butterley, Timothy; Sarazin, Marc; Le Louarn, Miska; Osborn, James; Farley, Ollie J.D.

Abstract

Stereo scintillation detection and ranging (S-SCIDAR) is a development of the well-established SCIDAR turbulence profiling technique. An S-SCIDAR instrument has been installed at the focus of one of the 1.8m Auxiliary Telescopes at Paranal observatory since April 2016. We discuss the limitations imposed by the Paranal S-SCIDAR instrument’s finite pixel size and exposure time. We present Monte Carlo simulation results quantifying the errors due to finite spatial and temporal sampling. We have reprocessed the existing S-SCIDAR dataset to compensate for these error sources; we discuss the impact of these corrections on the measured turbulence statistics.

Citation

Butterley, T., Sarazin, M., Le Louarn, M., Osborn, J., & Farley, O. J. (2020, December). Correction of finite spatial and temporal sampling effects in stereo-SCIDAR. Presented at SPIE Astronomical Telescopes + Instrumentation 2020, Online

• Presentation Conference Type: Conference Paper (published)
• Conference Name: SPIE Astronomical Telescopes + Instrumentation 2020
• Start Date: Dec 13, 2020
• End Date: Dec 18, 2020
• Online Publication Date: Dec 13, 2020
• Publication Date: 2020
• Deposit Date: Nov 2, 2021
• Publicly Available Date: Nov 2, 2021
• Publisher: SPIE
• Volume: 11448
• ISBN: 9781510636835
• DOI: https://doi.org/10.1117/12.2562559
• Public URL: https://durham-repository.worktribe.com/output/1675963