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SCIDAR: an optical turbulence profiler for Dome A

Published online by Cambridge University Press:  30 January 2013

Li-Yong Liu ,
Yong-Qiang Yao ,
Jean Vernin ,
Merieme Chadid ,
Hong-Shuai Wang  and
Yi-Ping Wang
Li-Yong Liu
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, China email: [email protected] Université de Nice-Sophia Antipolis, Observatoire de la Côte d'Azur, CNRS-UMR7293, Lab. Lagrange, Parc Valrose, 06108, Nice Cedex 2, France email: [email protected]
Yong-Qiang Yao
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, China email: [email protected]
Jean Vernin
Affiliation:
Université de Nice-Sophia Antipolis, Observatoire de la Côte d'Azur, CNRS-UMR7293, Lab. Lagrange, Parc Valrose, 06108, Nice Cedex 2, France email: [email protected]
Merieme Chadid
Affiliation:
Université de Nice-Sophia Antipolis, Observatoire de la Côte d'Azur, CNRS-UMR7293, Lab. Lagrange, Parc Valrose, 06108, Nice Cedex 2, France email: [email protected]
Hong-Shuai Wang
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, China email: [email protected]
Yi-Ping Wang
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, China email: [email protected]
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Abstract

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This paper introduces a plan to detect turbulence profiles at Dome A with a Single Star Scidar (SSS), to enhance our understanding of the characteristics of the site. The development of a portable monitor for profiling vertical atmospheric optical turbulence and wind speed is presented. By analyzing the spatial auto and cross-correlation functions of very short exposure images of single star scintillation patterns, the SSS can provide the vertical profiles of turbulence intensity C2n(h) and wind speed V(h). A SSS prototype is already operational at Ali in Tibet which will be improved in order to become fully robotic and adapted to extreme weather conditions that prevail at Dome A in Antarctica.

Keywords

ScidarOptical turbulenceDome A
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S288: Astrophysics from Antarctica , August 2012 , pp. 316 - 317
Copyright
Copyright © International Astronomical Union 2013

References

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