Terra Instruments

Tropical Storm Lisa's center appeared to be west of the bulk of the clouds associated with the storm. NASA's Terra […]
Wed, Sep 21, 2016
Tropical Storm Karl continued to maintain strength in the North Central Atlantic Ocean on Sept. 20. […]
Tue, Sep 20, 2016
After causing high winds and heavy rainfall over northern Taiwan, Typhoon Malakas on Sept. 19 started to batter the islands […]
Tue, Sep 20, 2016


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