Skip to content. | Skip to navigation

Personal tools
You are here: GES DISC Home Data Holdings Parameter Information Pages Brightness Temperature

Brightness Temperature

Other Names

BT

Definition

The apparent temperature of the surface assuming a surface emissivity of 1.0. Setting the emissivity to one is equivalent to assuming the target is a blackbody, so the brightness temperature is defined as the temperature a blackbody would be in order to produce the radiance perceived by the sensor.
Brightness Temperature is a descriptive measure of radiation in terms of the temperature of a hypothetical blackbody emitting an identical amount of radiation at the same wavelength. The brightness temperature is obtained by applying the inverse of the Planck function to the measured radiation. Depending on the nature of the source of radiation and any subsequent absorption, the brightness temperature may be independent of, or highly dependent on, the wavelength of the radiation.

Applications

(1) Algorithm development (6) Radiative Forcing
(2) Land surface temperatures (7) Climate change
(3) Fire detection (8) Weather Prediction
(4) Data assimilation (9) Clouds
(5) Global energy budget  

GES DISC Datasets

Quick Search for 'Brightness Temperature' with Mirador
Click on the corresponding 'Data access' links in the table below to access products containing specific parameter.

Parameter Units Platform /Instrument Data Products
Begin Date End Date Data Access Doc
Brightness Temperature at ground pixel resolution   Aqua/AMSU-A 2002-08-30 Current AIRABRAD Y
Aqua/HSB 2002-08-30 Current AIRHBRAD Y
Aqua/AIRS 2002-08-30 Current AIRIBRAD Y
AIRI2CCF Y
AIRX2SUP Y
AIRH2CCF Y
AIRH2SUP Y
TRMM/TMI 1997-12-07 Current TRMM_3A11 Y
TRMM_1B11 Y
Document Actions
NASA Logo - nasa.gov
NASA Privacy Policy and Important Notices
Last updated: Feb 28, 2012 10:40 AM ET
Top