Reconstructed solar total and background irradiances.
11-yr Tootal Solar Irradiance (TSI) component since 1874 is from Foukal and
Lean: earlier from Hoyt Sunspot Groups
Background Brightness component ...
This metadata references the scientific article: "Tropical-North Pacific
Climate Linkages Over the Past Four Centuries", which can be download from
here. Authors: Rosanne DArrigo(1), Rob Wilson(2), ...