G-Rad Data
Data produced by G-Rad are intended for scientific research by the G-Rad group, our collaborators, and other interested research organizations. Most all the data currently being collected are available with one day after being collected in a preliminary graphical form as linked below. Access to the final digital data is through direct request to the G-Rad group (David.U.Longenecker@noaa.gov) Hourly averages of total solar irradiance from the four GMD baseline observatories are directly available from our FTP site.