Describe the electromagnetic spectrum.
Identify the visible, infrared (near, middle, far), and radio wave portions
Describe the following effects on atmospheric propagation of EM and EO radiation:
Refraction Scattering Absorption
With respect to refraction of radar waves:
- Define refractivity
- Describe how N-units and M-units of refractivity are derived
- Describe how weather features affect refractivity and result in anomalous propagation, including trapping and ducting.
- Define super-, sub-, normal or trapping refractivity.
- Describe how refractivity results in normal or anomalous propagation.
- Given a vertical profile of refractivity, identify regions of super, sub, normal or trapping propagation.
With respect to propagation of visible light and infrared radiation:
- Describe the basic physics of infrared and visible radiation
- Define the properties of a “black body”
- Describe Planck's law and its derivatives: Stephan-Boltzmann’s Law and Wien’s Displacement Law.
- Describe Lambert’s Cosine Law and Kirchoff’s Law and their implications for infrared radiation.
- Given the environment (aerosol and weather), describe the effects on EO propagation.
- Describe the types and causes of scattering and their effect of EO propagation
- Describe the factors that affect atmospheric absorption of EO radiation
- Describe the different types of contrast (inherent, apparent, threshold)
- Describe Beer’s Law