Estimation of Fried's Parameter From Specklegrams of Solar Features

A few methods of estimating Fried's parameter (r^sub 0^) from specklegrams of solar features are described. Some of these methods were used to estimate r^sub 0^ for the speckle data obtained from Kodaikanal Observatory (KO), Uttar Pradesh State Observatory (UPSO) and Udaipur Solar Observatory (...

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Bibliographic Details
Published inSolar physics Vol. 211; no. 1-2; pp. 395 - 410
Main Authors Sridharan, R, Venkatakrishnan, P, Verma, V K
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Nature B.V 01.12.2002
Subjects
Solar physics
Studies
India, Rajasthan, Udaipur
India, Uttar Pradesh
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Summary:A few methods of estimating Fried's parameter (r^sub 0^) from specklegrams of solar features are described. Some of these methods were used to estimate r^sub 0^ for the speckle data obtained from Kodaikanal Observatory (KO), Uttar Pradesh State Observatory (UPSO) and Udaipur Solar Observatory (USO). The average value of r^sub 0^ was found to be 3 cm at USO and UPSO during our observations. At KO, values of r^sub 0^ ranging from 6 to 10 cm were estimated.[PUBLICATION ABSTRACT]
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ISSN:0038-0938
1573-093X
DOI:10.1023/A:1022414605136