What is reflected radiation?

Radiation reflected or emitted from the earth and the atmosphere into the aperture is separated into spectral “bands” by a spectral separation device and detected at the focus of an optical assembly.

What is the difference between radiated and emitted?

Radiation is the emission of electromagnetic waves. But emission can be either electromagnetic waves, particles or gases. The main difference between radiation and emission is that radiation is the process of carrying what is emitted whereas emission is the process of formation and release of something.

What is emitted radiation?

Emission occurs when the excited electron returns to a lower electron orbital. The emitted radiation is termed luminescence. Luminescence is observed at energies that are equal to or less than the energy corresponding to the absorbed radiation. After initial absorption, emission can occur by either of two mechanisms.

What type of radiation is reflected?

Infrared light is reflected more than UV or visible light due to its longer wavelengths 10. This reflection allows infrared radiation to transfer heat between the surface, water and the air. In a body of water, infrared light can only reach a certain distance below the surface.

What is the difference between direct and diffused radiation?

In simple terms, direct radiation has a definite direction but diffuse radiation follows a much more scattered, uncertain path. Because when the radiation is direct, the rays are all travelling in the same direction, an object can block them all at once.

What is Earth emitted energy?

The earth-atmosphere energy balance is the balance between incoming energy from the Sun and outgoing energy from the Earth. Energy released from the Sun is emitted as shortwave light and ultraviolet energy.

What is the difference between emit and reflect?

Emitted light is composed of photons generated by the matter emitting the light – it’s an intrinsic source of light. Reflected light consists of photons whose origin is elsewhere but reflected (scattered) from some object.

What is reflection and emission?

Simply said, Reflection is seeing the duplicate image of something whereas emission is primarily producing and giving out something. For example, if you see the sun’s image in water, it’s reflection but if you see the sun directly, you’re seeing it because it’s emitting light.

Can gamma rays be reflected?

Unlike optical light and x-rays, gamma rays cannot be captured and reflected by mirrors. Gamma-ray wavelengths are so short that they can pass through the space within the atoms of a detector.

What type of radiation does Earth emit?

longwave radiation
Radiation emitted from Earth is called longwave radiation; it falls within the infrared portion of the spectrum and has typical wavelengths of 4 to 30 micrometres (0.0002 to 0.001 inch). Wavelengths of radiation emitted by a body depend on the temperature of the body, as specified by Planck’s radiation law.