Solar radiation enters the Earth's atmosphere with a portion being scattered by clouds and aerosols.

Processing, archiving and distributing Earth science data
at the NASA Langley Research Center

Long Term TOA - M Data and Information

A Long-Term TOA and

Constrained Surface Radiation Budget Project

A Long-Term TOA and Constrained Surface Readiation Budget Dataset Using Merged CERES, ERBE, and ISCCP/SRB Products from the Past 30 Years


Principal Investigator:  Seiji Kato,  Langley Research Center


Understanding the mean and variability of the Earth’s Radiation Budget (ERB) at the Top-of-Atmosphere (TOA) and surface is a fundamental quantity governing climate variability and, for that reason, NASA has been making concerted efforts to observe the ERB since1984 through two projects: Earth Radiation Budget Experiment (ERBE) and Clouds and the Earth's Radiant Energy System (CERES), that span nearly 30 years to date.


The proposed project utilizes knowledge gained in the last 10 years through CERES data analyses and apply the knowledge to existing data to develop long-term consistent and calibrated data product (TOA irradiances at the same radiometric scale) from multiple missions (ERBS and CERES). This project produces Level 3 TOA irradiance products from ERBE observations. A wide-field-of-view (WFOV) nonscanner on Earth Radiation Budget Satellite (ERBS) is calibrated to be consistent with CERES instruments. All data sets produced by this project will be available from the Atmospheric Science Data Center.


Format: HDF5 or NetCDF

Products Temporal Resolution Spatial Resolution Temporal Coverage

36 Day: 30N to 30S, 72 Day: 60S to 60N, 72 Day Annual: 60S to 60N, Daily: 60S to 60N

10 x 10 deg grid

01/01/1985 - 12/31/1998


36 Day: 30N to 30S, 72 Day: 60S to 60N, 72 Day Annual: 90S to 90N

10 x 10 deg grid

01/01/1985 - 12/31/1998

Read software unavailable