Variability of the solar chromospheric network over the solar cycle

Details Variability of the solar chromospheric network over the solar cycle Variability of the solar chromospheric network over the solar cycle

Jun 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994soph..152..139k&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 152, no. 1, p. 139-144

Physics

17

Calcium, K Lines, Line Shape, Network Analysis, Photosphere, Solar Activity, Correlation Coefficients, Periodic Variations, Solar Cycles

Scientific paper

From a large sample of the Kodaikanal spectroheliograms in the Ca II K line we have studied the variations in the intensity of the network elements over two solar cycles and have estimated their contribution to the overall variability seen in the disk-averaged K line profiles. The relative contribution of the network elements and the bright points to the K-emission are of the order of 25% and 15% respectively. We have shown that the area of the network elements is anti-correlated with the solar activity, and it increases by about 24% during the solar minimum compared to the maximum period.

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