Total Solar Irradiance (TSI)

National Oceanic and Atmospheric Administration

The National Geophysical Data Center (NGDC) offers text descriptions of composite, individual and archival Total Solar Irradiance (TSI) data from various satellites. TSI describes the radiant energy emitted by the sun over all wavelengths that falls each second on one square meter outside the earth's atmosphere. Data is gathered as this radiant energy is absorbed into a cavity on a satellite and is converted into heat energy that is in turn converted into an electrical voltage and measured as Watts/square meter, a quantity proportional to the solar constant. TSI variations are of interest in solar physics and because of the possible effect of radiative forcing on the Earth's climate.

This description of a site outside SERC has not been vetted by SERC staff and may be incomplete or incorrect. If you have information we can use to flesh out or correct this record let us know.

Part of the Starting Point collection. The Starting Point collection includes resources addressing the needs of faculty and graduate students designing, developing, and delivering entry-level undergraduate courses in geoscience.

Starting Point
This resource is referenced here:
Subject: Geoscience:Geology:Geophysics, Geoscience:Atmospheric Science, Lunar and Planetary Science
Resource Type: Datasets and Tools:Datasets
Grade Level: Graduate/Professional, College Upper (15-16)
Theme: Teach the Earth:Course Topics:Planetary Science, Atmospheric Science, Geophysics