The Clouds and the Earth's Radiant Energy System (CERES) is a key component of the Earth Observing System (EOS) program. The CERES instruments provide radiometric measurements of the Earth's atmosphere from three broadband channels. The CERES missions are a follow-on to the successful Earth Radiation Budget Experiment (ERBE) mission. The first CERES instrument (PFM) was launched on November 27, 1997 as part of the Tropical Rainfall Measuring Mission (TRMM). Two CERES instruments (FM1 and FM2) were launched into polar orbit on board the EOS flagship Terra on December 18, 1999. Two additional CERES instruments (FM3 and FM4) were launched on board EOS Aqua on May 4, 2002. The newest CERES instrument (FM5) was launched on board the Suomi National Polar-orbiting Partnership (NPP) satellite on October 28, 2011.
Spatially (1°x1° lat/lon regional, 1° zonal, global) and temporally (daily, monthly, etc.) averaged fluxes and clouds.
CERES instrument TOA fluxes using algorithms identical to those used by ERBE.
Instantaneous footprint-level (20km nominal) fluxes and cloud properties.
CERES observed TOA fluxes, MODIS clouds and aerosols, and parameterized surface fluxes.
CERES instantaneous footprint-level (20km nominal) ephemeris and instrument level data.
CERES geolocated and calibrated TOA filtered radiances and other instrument data.