[PP1-3-1] Radiometric quantities: radiance, irradiance, flux, brightness, emittance, luminosity,etc.

The first basic radiometric quantity is the radiance (Iλ) and it is defined as the ratio of the differential radiant energy to the product of effective area with the time interval, wavelength interval and differential solid angle. Based on Iλ, the monochromatic and total flux density can be calculated.

External resources

• Liou, K.N. (2002, 1980). An Introduction to Atmospheric Radiation. Academic Press - Second Edition.

Learning outcomes

• 1447 - Define the radiometric spectral quantities radiance, irradiance, flux

  Define the radiometric spectral quantities radiance, irradiance, flux 

• 1448 - Define the radiometric spectral quantities brightness, emittance, luminosity

  Define the radiometric spectral quantities brightness, emittance, luminosity

Self assessment

Outgoing relations

• [PP1-3-1] Radiometric quantities: radiance, irradiance, flux, brightness, emittance, luminosity,etc. subclassof [PP1-3] Sensing of EM radiation.

Contributors

• Andreas Kazantzidis
  https://www.researchgate.net/profile/Andreas_Kazantzidis
• Valerio Tramutoli
  https://orcid.org/0000-0003-3875-7909