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Lunar scintillometer array for atmospheric turbulence measurement Dumais, Marie-Andree
Abstract
The performance of large telescopes is directly related to the quality of the site. Of particular importance is the turbulence profile within the lower few hundred meters of the atmosphere. We have developed a new technique for measuring this profile, and the Fried parameter r₀, by measuring spatial correlations in the scintillation of moonlight. Our lunar scintillometer array uses 12 photodiodes to measure the intensity fluctuation covariance function, and from this we obtain the index of refraction profile C²[sub N] to a height of about 200 m with a vertical resolution of order 2%. This paper describes the instrument, the technique, and results of initial tests.
Item Metadata
Title |
Lunar scintillometer array for atmospheric turbulence measurement
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
2006
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Description |
The performance of large telescopes is directly related to the quality of the site.
Of particular importance is the turbulence profile within the lower few hundred
meters of the atmosphere. We have developed a new technique for measuring
this profile, and the Fried parameter r₀, by measuring spatial correlations in the
scintillation of moonlight. Our lunar scintillometer array uses 12 photodiodes to
measure the intensity fluctuation covariance function, and from this we obtain
the index of refraction profile C²[sub N] to a height of about 200 m with a vertical
resolution of order 2%. This paper describes the instrument, the technique, and
results of initial tests.
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Genre | |
Type | |
Language |
eng
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Date Available |
2010-01-05
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Provider |
Vancouver : University of British Columbia Library
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Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
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DOI |
10.14288/1.0085734
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Graduation Date |
2006-05
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Campus | |
Scholarly Level |
Graduate
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Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.