Terra Instruments

Features

Tropical Storm Dolly fizzled out quickly on September 3 after making landfall in eastern Mexico, and NASA's Aqua satellite tracked […]
Thu, Sep 04, 2014
As NASA's Terra satellite passed over Northern California on Sept. 2, 2014, the Happy Camp Complex of fires had already […]
Wed, Sep 03, 2014
The Moderate Resolution Imaging Spectroradiometers (MODIS) on NASA’s Aqua and Terra satellites captured these images of the Carlton Complex Fire […]
Mon, Jul 21, 2014

CERES

Clouds and the Earth’s Radiant Energy System

CERES measures reflected and emitted from the top of Earth's atmosphere.

There are two identical CERES instruments aboard Terra that measure the Earth’s total radiation budget and provide cloud property estimates that enable scientists to assess clouds’ roles in radiative fluxes from the surface to the top of the atmosphere. One CERES instrument operates in a cross-track scan mode and the other in a biaxial scan mode. The cross-track mode essentially continues the measurements of the Earth Radiation Budget Experiment (ERBE) and the Tropical Rainfall Measuring Mission (TRMM), while the biaxial scan mode provides new angular flux information that has improved the accuracy of angular models used to derive the Earth’s radiation balance.

Two CERES sensors also fly aboard Terra’s sister ship—Aqua.

CERES Web Site (Langley Research Center)

CERES in the News