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Long term study of the solar filaments from the Synoptic Maps as derived from Spectroheliograms of Kodaikanal Observatory
Subhamoy Chatterjee, Manjunath Hegde, Dipankar Banerjee +1
The century long (1914-2007) (656.28 nm) spectroheliograms from Kodaikanal Solar Observatory (KSO) have been recently digitised. Using these newly calibrated, processed image…
Association Of Supergranule Mean Scales with Solar Cycle Strengths and Total Solar Irradiance
Sudip Mandal, Subhamoy Chatterjee, Dipankar Banerjee
We analyze the long-term behavior of supergranule scale parameter, in active and quiet regions (AR, QR), using the Kodaikanal digitized data archive. This database provides century…
Variation of Supergranule Parameters With Solar Cycles: Results From Century-Long Kodaikanal Digitized Ca II K Data
Subhamoy Chatterjee, Sudip Mandal, Dipankar Banerjee
The century-long (1907-2007) Ca II K spectroheliograms from Kodaikanal Solar Observatory, India, has recently been digitised and calibrated. Applying a fully-automated algorithm (w…