This display requires that JavaScripts be enabled in your browser. For instructions, view http://www.nasa.gov/home/How_to_enable_Javascript.html
Close This Window
Instrument: CERES-FM1 : Clouds and the Earth's Radiant Energy System - Flight Model 1
View entire text

Associated Platforms
TERRA

Spectral/Frequency Information
Number Channels: 1
Spectral/Frequency Coverage/Range: 0.3 μm - 100 μm
View entire list

Related Data Sets
View all records related to this instrument


Description
The Cloud's and the Earth's Radiant Energy System (CERES) is a 3-channel radiometer measuring reflected solar radiation in the 0.3-5 μm wavelength band, emitted terrestrial radiation in the 8-12 μm band, and total radiation from 0.3 μm to beyond 100 μm. These data are being used to measure the Earth's total thermal radiation budget, and, in combination with MODIS data, detailed information about clouds. The first CERES instrument was launched on the Tropical Rainfall Measuring Mission (TRMM) satellite in November 1997 as CERES-PFM; the second and third CERES instuments were launched on the Terra satellite in December 1999 as CERES-FM1 AND -FM2; and the fourth and fifth CERES instruments are on board the Aqua satellite, as CERES-FM3 and CERES-FM4.

Instrument Characteristics:

* Selected for flight on TRMM, Terra, and Aqua.
* Two broadband, scanning radiometers: One cross-track mode, one rotating azimuth plane (bi-axial scanning).
* First instrument (cross-track scanning) is continuing ERBE, TRMM, and Terra measurements and the second (biaxially scanning) is providing angular radiance information to improve the accuracy of angular models used to derive the Earth's radiative balance.
* Single scanner on TRMM mission (launched Nov. 1997)
View entire text

Online Resources
http://aqua.nasa.gov/about/instrument_ceres.php
http://asd-www.larc.nasa.gov/ceres/brochure/intro.html

Instrument Logistics
Instrument Owner: USA/NASA

Close This Window