Modelling variability of solar activity cycles

Solar Variability and Climate Cycles

Solar Variability and Climate Cycles

Total solar irradiance variability: What have we learned about its variability from the record of the last three solar cycles?

Since November 1978 a set of total solar irradiance (TSI) measurements from space is available, yielding a time series of almost 30 years. Presently, there are three TSI composites available, called PMOD, ACRIM and IRMB, which are all constructed from the same original data, but use different procedures to correct for sensitivity changes. The PMOD composite is the only one which also corrects t...

Corrigendum: Solar cycles or random processes? Evaluating solar variability in Holocene climate records

Many studies have reported evidence for solar-forcing of Holocene climate change across a range of archives. These studies have compared proxy-climate data with records of solar variability (e.g. (14)C or (10)Be), or have used time series analysis to test for the presence of solar-type cycles. This has led to some climate sceptics misrepresenting this literature to argue strongly that solar var...

Solar Wind Plasma Parameter Variability Across Solar Cycles 23 and 24: From Turbulence to Extremes

Solar wind variability spans a wide range of amplitudes and timescales, from turbulent fluctuations to the 11 year solar cycle. We apply the data quantile-quantile (DQQ) method to NASA/Wind observations spanning solar cycles 23 and 24, to study how the uniqueness of each cycle maximum and minimummanifests in the changing statistical distribution of plasma parameters in fast and slow solar wind....