Question about brightness temperatur​e

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SUMMARY

The discussion centers on the conversion of brightness temperature (measured in Kelvin) of the Earth's surface to actual temperature. It highlights the relevance of infrared thermometers in this context, which measure the thermal radiation emitted by objects. The conversation also touches on the application of brightness temperature in astronomy for determining the temperature of distant celestial bodies. No specific formula for conversion is provided, indicating a gap in the discussion regarding precise methodologies.

PREREQUISITES
  • Understanding of brightness temperature and its implications in thermal radiation.
  • Familiarity with infrared thermometers and their operational principles.
  • Basic knowledge of spectral analysis in the context of temperature measurement.
  • Awareness of astronomical methods for temperature estimation of celestial objects.
NEXT STEPS
  • Research the principles of infrared thermometry and its applications in temperature measurement.
  • Explore the concept of spectral analysis and its relevance in determining temperature from thermal radiation.
  • Investigate existing formulas for converting brightness temperature to actual temperature.
  • Study the methodologies used by astronomers to measure the temperature of distant sources using brightness temperature.
USEFUL FOR

Scientists, meteorologists, astronomers, and anyone interested in the principles of thermal radiation and temperature measurement techniques.

newsim
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It is possible to convert brightness temperature of Earth surface (K) to the actual temperature?
Is there any formulae for such conversion?
Thanks in advance!
 
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I'm not sure "brightness temperature" has any meaning, but you are basically describing an infrared thermometer.
 
Could this be the sort of thing you are after. Any body that is radiating energy due to its temperature alone will have a spectrum as shown in the diagram.
I think this is used by astronomers to find the temperature of distant sources - optical and 'just warm'.
 

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