Point Discharge Current During a Solar Eclipse |
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| Authors: | S. S. De Suman Paul S. Barui P. Hazra D. Kala D. K. Haldar A. Ghosh G. Guha |
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| Affiliation: | 1. S. K. Mitra Centre for Research in Space Environment, Institute of Radio Physics and Electronics, University of Calcutta, 1, Girish Vidyaratna Lane, Kolkata, 700 009, India
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| Abstract: | The effect of solar eclipse of July 22, 2009, obscuring up to 91 %, upon the value of point discharge current (PDC) has been reported in this paper. The observation had been taken from Kolkata (Lat. 22.56°N, Long. 88.5°E). During the eclipse period, significant variations in the magnitude of PDC were observed than their average value for the same period in other days. The average value of the PDC for the successive ±10 days adjacent to the solar eclipse day was about 2.253 A.U. (Arbitrary Unit), while the minimum value showed about 2.242 A.U. at the time of greatest phase at 06:26.4 IST (Indian Standard Time). The results are mainly interpreted in terms of changes of the conductivity of the medium during the solar eclipse. |
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