345 citations · 1.1k across the 9 of their papers we have counts for
9 papers
Revisited reference solar proton event of 23-Feb-1956: Assessment of the cosmogenic-isotope method sensitivity to extreme solar events
Ilya G. Usoskin, Sergey A. Koldobskiy, Gennady A. Kovaltsov +4
Our direct knowledge of solar eruptive events is limited to several decades and does not include extreme events, which can only be studied by the indirect proxy method over millenn…
Revised historical solar irradiance forcing
T. Egorova, W. Schmutz, E. Rozanov +5
Context. There is no consensus on the amplitude of the historical solar forcing. The estimated magnitude of the total solar irradiance difference between Maunder minimum and presen…
High solar cycle spectral variations inconsistent with stratospheric ozone observations
W. T. Ball, J. D. Haigh, E. V. Rozanov +5
Some of the natural variability in climate is understood to come from changes in the Sun. A key route whereby the Sun may influence surface climate is initiated in the tropical str…
The variability of Sun-like stars: reproducing observed photometric trends
A. I. Shapiro, S. K. Solanki, N. A. Krivova +5
The Sun and stars with low magnetic activity levels, become photometrically brighter when their activity increases. Magnetically more active stars display the opposite behaviour an…
Recent variability of the solar spectral irradiance and its impact on climate modelling
I. Ermolli, K. Matthes, T. Dudok de Wit +12
The lack of long and reliable time series of solar spectral irradiance (SSI) measurements makes an accurate quantification of solar contributions to recent climate change difficult…
The place of the Sun among the Sun-like stars
A. I. Shapiro, W. Schmutz, G. Cessateur +1
Context. Monitoring of the photometric and chromospheric HK emission data series of stars similar to the Sun in age and average activity level showed that there is an empirical cor…
Detection of Solar Rotational Variability in the LYRA 190 - 222 nm Spectral Band
A. V. Shapiro, A. I. Shapiro, M. Dominique +4
We analyze the variability of the spectral solar irradiance during the period from 7 January, 2010 until 20 January, 2010 as measured by the Herzberg channel (190-222 nm) of the La…
A new approach to long-term reconstruction of the solar irradiance leads to large historical solar forcing
A. I. Shapiro, W. Schmutz, E. Rozanov +4
The variable Sun is the most likely candidate for natural forcing of past climate change on time scales of 50 to 1000 years. Evidence for this understanding is that the terrestrial…
NLTE solar irradiance modeling with the COSI code
A. I. Shapiro, W. Schmutz, M. Schoell +2
Context. The solar irradiance is known to change on time scales of minutes to decades, and it is suspected that its substantial fluctua- tions are partially responsible for climate…