Long-term Variations in the Intensity of Plages and Networks as Observed in Kodaikanal Ca-K Digitized Data

  title={Long-term Variations in the Intensity of Plages and Networks as Observed in Kodaikanal Ca-K Digitized Data},
  author={Muthu Priyal and Jagdev Singh and Ravindra Belur and Somasundaram Kameshwaran Rathina},
  journal={Solar Physics},
In our previous article (Priyal et al. in Solar Phys.289, 127, 2014) we have discussed the details of observations and methodology adopted to analyze the Ca-K spectroheliograms obtained at the Kodaikanal Observatory (KO) to study the variation of Ca-K plage areas, enhanced network (EN), and active network (AN) for Solar Cycles, namely 19, 20, and 21. Now, we have derived the areas of chromospheric features using KO Ca-K spectroheliograms to study the long-term variations of Solar Cycles 14 to… 
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