SolRad-Net (Solar Radiation Network) is an established network of ground-based sensors providing high-frequency solar flux measurements in quasi-realtime to the scientific community and various other end users.This network was implemented as a companion to AERONET and its instrumentation are invariably collocated with AERONET sites. The Brazilian core of the present network was developed within the scientific framework of the LBA-ECO component of the Large-Scale Biosphere-Atmosphere Experiment in Amazônia. Historically, SolRad-Net has preferentially selected sites that routinely experience intervals of biomass-burning, such as Amazônia and Sub-Saharan Africa for its long-term monitoring. Data that have been cleared as free of any operational problems are designated as Level 1.5. The raw, unscreened data are Level 1.0 by default and may contain observations that have been compromised for any of the (occasionally subtle) reasons described above. The Level 1.0 data are made available in the interest of presenting a comprehensive dataset and to provide full transparency of our methods, however any use of these data is strongly discouraged.