[PP1-1-11] Earth's radiation (intensity, spectrum, etc.)

Earth's itself represents the second (after Sun) most powerfull natural source of e.m. radiation for EO. Its average emittance can be approximated by that of a blackbody at about 290 K. Even if very less powerfull than Sun such a source is available for EO day and nigth. The maximum of its emission falls in the thermal infrared (around 10 micron) being Earth's emission trascurable in the VIS-SWIR range.

External resources

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

Learning outcomes

• 1432 - Illustrate the importance of Earth's emitted radiation for EO from space

  Illustrate the importance of Earth's emitted radiation for EO from space

Self assessment

Outgoing relations

• [PP1-1-11] Earth's radiation (intensity, spectrum, etc.) subclassof [PP1-1] EM radiation

Contributors

• Valerio Tramutoli
  https://orcid.org/0000-0003-3875-7909