Solar cycle dependence of polar coronal holes

descriptionPublicationkeyboard_double_arrow_right Article 01 Nov 1993 English Publisher:Springer Science and Business Media LLCJournal:Solar Physics, volume 148, pages 61-64 (issn: 0038-0938, eissn: 1573-093X,

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Authors: T. K. Das; T. N. Chatterjee; A. K. Sen;

doi: 10.1007/bf00675535

Solar cycle dependence of polar coronal holes

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Abstract

A study has been made of the polar coronal holes in relation to solar cycle activity. Important results obtained are: (i) the peak of the frequency distribution of coronal hole size shifts towards lower values as the solar cycle advances towards maximum, this being true for both the north and south polar holes, (ii) coronal hole size decreases with the increase of sunspot number.

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University of Calcutta
India

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