The latest reconstruction
SORCE » Total Solar Irradiance Data
This historical reconstruction of TSI is based on that used in the IPCC AR5 Working Group’s Assessment Report and utilizes TSI reconstructions by N. Krivova et al. (see references below). The values from their SATIRE model have been offset a small amount (-0.30 W/m2) to match the latest SORCE/TIM measurements during years of overlap and then extended using SORCE/TIM annual averages from 2003 onward. The historical reconstruction provided here was computed using TIM V.15 data in February 2014, and is updated annually as new TIM data are available.
References
1) N.A. Krivova, L.E.A. Vieira, S.K. Solanki (2010).
Journal of Geophysical Research: Space Physics, Volume 115, Issue A12, CiteID A12112. DOI:10.1029/2010JA015431
2) Ball, W. T.; Unruh, Y. C.; Krivova, N. A.; Solanki, S.; Wenzler, T.; Mortlock, D. J.; Jaffe, A. H. (2012).
Astronomy & Astrophysics, 541, id.A27. DOI:10.1051/0004-6361/201118702
3) K. L. Yeo, N. A. Krivova, S. K. Solanki, and K. H. Glassmeier.
Astronomy & Astrophysics, “Reconstruction of total and spectral solar irradiance since 1974 based on KPVT, SoHO/MDI and SDO/HMI observations,” 2014, submitted
Inadequate to have caused more than a very small fraction of the observed warming. The dominant cause of the observed warming has been Greenhouse Warming from human GHG emissions and deforestation.