A New SATIRE-S Spectral Solar Irradiance Reconstruction for Solar Cycles 21–23 and Its Implications for Stratospheric Ozone*

• DOI: 10.1175/jas-d-13-0241.1
• Publication Date: 2014-08-27T17:35:36Z
• Authors: William T. Ball; Natalie A. Krivova; Yvonne C. Unruh; Joanna D. Haigh; Sami K. Solanki
• Keywords: Solstice; Solar variation; Solar maximum; Ultraviolet

We present a revised and extended total spectral solar irradiance (SSI) reconstruction, which includes wavelength-dependent uncertainty estimate, spanning the last three cycles using SATIRE-S model. The SSI reconstruction covers wavelengths between 115 160,000 nm all dates August 1974 October 2009. This represents first full-wavelength to cover without data gaps with an estimate. is compared NRLSSI model SORCE/SOLSTICE ultraviolet (UV) observations. displays similar cycle behaviour for below 242 almost twice variability 310 nm. During decline of cycle, 2003 2008, from version 12 10 typically more than times 200 300 All datasets are used changes in stratospheric ozone within 2D atmospheric high activity minimum. different flux result modelled trends. Using leads mesospheric ozone, while increase. Recent publications have highlighted increases when considering irradiances. recalibrated irradiances much smaller response now magnitude SATIRE-S. shows that current knowledge variations not sufficient warrant robust conclusions concerning impact on atmosphere climate.