2000/10/25 by S. Sofia, Sabatino Sofia, Linghuai H. Li · 1 citation
Biochemistry, Genetics and Molecular Biology · Earth and Planetary Sciences · Physics and Astronomy · #Atmospheric sciences #Climatology #Environmental science #Geology #Geomagnetism and Paleomagnetism Studies #Geophysics and Gravity Measurements #Magnetic field #Meteorology #Physics #Solar and Space Plasma Dynamics #Solar cycle #Solar irradiance #Solar maximum #Solar minimum #Solar variation #Solar wind #Sunspot #Sunspot number #astro-ph
paper · pdf · doi:10.1029/2000ja000379
LaTeX, JGR preprint with AGU++ v16.b and AGUTeX 5.0, use packages graphicx; 6 pages, 4 figures, submitted to JGR-Space physics
arxiv created 2000/10/25 · openalex publication_date 2001/07/01 · arxiv updated 2015/06/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Recent precise observations of solar global parameters are used to calibrate an upgraded solar model which takes into account magnetic fields in the solar interior. Historical data about sunspot numbers (from 1500 to the present) and solar radius changes (between 1715 and 1979) are used to compute solar variability on timescales of years to centuries. The results show that although the 11 year variability of the total irradiance is of the order of 0.1%, additional, longer‐lived changes of the order of 0.1% may have occurred in the past centuries. These could, for example, account for the occurrence of climate excursions such as little ice ages.