Here we present the little explored Ca II K archives from the Rome and the Catania observatories and analyse the digitised images from these archives to derive plage areas
Aims. We investigate whether restoration techniques, such as those developed for application to curr...
Context. Knowledge of solar irradiance variability is critical to Earth’s climate models and underst...
Kodaikanal Solar Observatory (KoSO) possesses one of world's longest and homogeneous records of suns...
Various observatories around the globe started regular full-disk imaging of the solar atmosphere in ...
Context. Reconstructions of past irradiance variations require suitable data on solar activity. The ...
International audienceContext. Studies of long-term solar activity and variability require knowledge...
Context. Reconstructions of past irradiance variations require suitable data on solar activity. The ...
Full-disc Ca ii K photographic observations of the Sun carry direct information as regards the evolu...
Context. The increasing interest in the recovery of historic data and the availability of new hardwa...
International audienceContext. Knowledge of solar irradiance variability is critical to Earth's clim...
Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution ...
Context. Knowledge of solar irradiance variability is critical to Earth’s climate models and underst...
Reconstruction of long-term solar UV variations during the entire 20th century is reported. The suns...
Solar Plages are bright chromospheric features observed in Ca II K photographic observations of the ...
Context. Sunspots have been observed since Galileo Galilei invented the telescope. Later, sunspot d...
Aims. We investigate whether restoration techniques, such as those developed for application to curr...
Context. Knowledge of solar irradiance variability is critical to Earth’s climate models and underst...
Kodaikanal Solar Observatory (KoSO) possesses one of world's longest and homogeneous records of suns...
Various observatories around the globe started regular full-disk imaging of the solar atmosphere in ...
Context. Reconstructions of past irradiance variations require suitable data on solar activity. The ...
International audienceContext. Studies of long-term solar activity and variability require knowledge...
Context. Reconstructions of past irradiance variations require suitable data on solar activity. The ...
Full-disc Ca ii K photographic observations of the Sun carry direct information as regards the evolu...
Context. The increasing interest in the recovery of historic data and the availability of new hardwa...
International audienceContext. Knowledge of solar irradiance variability is critical to Earth's clim...
Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution ...
Context. Knowledge of solar irradiance variability is critical to Earth’s climate models and underst...
Reconstruction of long-term solar UV variations during the entire 20th century is reported. The suns...
Solar Plages are bright chromospheric features observed in Ca II K photographic observations of the ...
Context. Sunspots have been observed since Galileo Galilei invented the telescope. Later, sunspot d...
Aims. We investigate whether restoration techniques, such as those developed for application to curr...
Context. Knowledge of solar irradiance variability is critical to Earth’s climate models and underst...
Kodaikanal Solar Observatory (KoSO) possesses one of world's longest and homogeneous records of suns...
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