Manajit Sengupta
Lead Mentor
National Renewable Energy Laboratory
The Ground Radiation (GNDRAD) collection of radiometers provides continuous measurements of broadband reflected shortwave (solar) and longwave (infrared) irradiances for upwelling components. These 1-minute data are collected to help determine the total radiative energy exchange at a research site.
At GNDRAD sites, collocated downwelling shortwave and longwave irradiances are also normally measured (see SKYRAD).