a) Comparison between the TSI reconstruction by Steinhilber et al. (2009) (S09; VADM; green line) and two TSI reconstructions obtained in this paper based on VADM and VDM paleomagnetic reconstructions by Knudsen et al. (2008) (KN08; VADM; blue line) and Korte & Constable (2005) (KC05; VDM; gray line), respectively. For reference, 10-year running means of the SATIRE-T reconstruction are displayed from aprroximately 1640 to the present (K10, thick red line). b) Differences between 120-year running means of the models based on ¹⁴C and ¹⁰Be records. c) Scatter plot TSI-S09 versus TSI-KN08. d) Scatter plot TSI-S09 versus TSI-KC05.