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Browsing by Author "Solanki, Sami K"

Browsing by Author "Solanki, Sami K"

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  • Analysis of full-disc Ca II K spectroheliograms III. Plage area composite series covering 1892–2019 
    Chatzistergos, Theodosios; Ermolli, Ilaria; Krivova, Natalie A; Solanki, Sami K; Banerjee, D; Barata, Teresa; Belik, Marcel; Gafeira, Ricardo; Garcia, Adriana; Hanaoka, Yoichiro; Manjunath, H; Klimes, Jan; Korokhin, Viktor V; Lourenço, Ana; Malherbe, Jean-Marie; Marchenko, Gennady P; Peixinho, Nuno; Sakurai, Takashi; Tlatov, Andrey G (EDP Sciences, 2020-07)
    Context. Studies of long-term solar activity and variability require knowledge of the past evolution of the solar surface magnetism. The archives of full-disc Ca II K observations that have been performed more or less ...
  • Butterfly diagram and other properties of plage areas from kodaikanal Ca II K photographs covering 1904 – 2007 
    Jha, Bibhuti K; Chatzistergos, Theodosios; Banerjee, D; Ermolli, Ilaria; Krivova, Natalie A; Solanki, Sami K; Priyadarshi, Aditya (Springer Nature, 2024-12)
    Ca II K observations of the Sun have a great potential for probing the Sun’s magnetism and activity, as well as for reconstructing solar irradiance. The Kodaikanal Solar Observatory (KoSO) in India, houses one of the most ...
  • Delving into the Historical Ca II K Archive from the Kodaikanal Observatory: The Potential of the Most Recent Digitized Series 
    Chatzistergos, Theodosios; Ermolli, Ilaria; Solanki, Sami K; Krivova, Natalie A; Banerjee, D; Jha, Bibhuti K; Chatterjee, Subhamoy (Springer, 2019-10)
    Full-disc Ca II K photographic observations of the Sun carry direct information as regards the evolution of solar-plage regions for more than a century and are therefore a unique dataset for solar-activity studies. For a ...
  • Wave analysis tools 
    Jafarzadeh, Shahin; Jess, David B.; Stangalini, Marco; Grant, Samuel D. T; Higham, Jonathan E; Pessah, Martin E; Keys, Peter H; Belov, Sergey; Calchetti, Daniele; Duckenfield, Timothy J; Fedun, Viktor; Fleck, Bernhard; Gafeira, Ricardo; Jefferies, Stuart M; Khomenko, Elena; Morton, Richard J; Norton, Aimee A; Rajaguru, S. P; Schiavo, Luiz A C. A; Sharma, Rahul; Silva, Suzana S. A; Solanki, Sami K; Steiner, Oskar; Verth, Gary; Vigeesh, G; Yadav, Nitin (Springer Nature, 2025-04)
    This Primer provides an overview of a fundamental set of analysis methods for studying waves, vibrations and related oscillatory phenomena — including instabilities, turbulence and shocks — across diverse scientific fields. ...

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