Radiative flux, also known as radiative flux density or radiation flux (or sometimes power flux density[1]), is the amount of power radiated through a given area, in the form of photons or other elementary particles, typically measured in W/m2.[2] It is used in astronomy to determine the magnitude and spectral class of a star and in meteorology to determine the intensity of the convection in the planetary boundary layer. Radiative flux also acts as a generalization of heat flux, which is equal to the radiative flux when restricted to the infrared spectrum.
When radiative flux is incident on a surface, it is often called irradiance. Flux emitted from a surface may be called radiant exitance or radiant emittance. The ratio of irradiance reflected to the irradiance received by a surface is called albedo.
^"Communication Systems/Wireless Transmission". WikiBooks: Communication Systems/Wireless Transmission. Retrieved 2018-12-11.
^"Glossary of Meteorology: Radiative Flux". Retrieved 2008-12-24.
Radiativeflux, also known as radiativeflux density or radiation flux (or sometimes power flux density), is the amount of power radiated through a given...
through a unit area (J·m−2·s−1). The radiativeflux and heat flux are specific cases of energy flux. Particle flux, the rate of transfer of particles through...
the globe. A planet in radiative equilibrium with its parent star and the rest of space can be characterized by net zero radiative forcing and by a planetary...
sometimes called energy flux density, to distinguish it from the first definition. Radiativeflux, heat flux, and sound energy flux are specific cases of...
used to describe spectral flux density vary between fields, sometimes including adjectives such as "electromagnetic" or "radiative", and sometimes dropping...
that will allow the outgoing radiative power, escaping the top of the atmosphere, to be equal to the absorbed radiative power of sunlight. When applied...
to sunlight, these materials can also achieve radiative cooling during the day. The most common radiative coolers found on buildings are white cool-roof...
In astronomy and in astrophysics, for radiative losses of the solar corona, it is meant the energy fluxradiated from the external atmosphere of the Sun...
radiativeflux density (that is, radiativeflux per unit of frequency) on frequency. Given frequency ν{\displaystyle \nu } in Hz and radiativeflux density...
the heat flux. The heat flux can have different origins; in principle convective, radiative as well as conductive heat can be measured. Heat flux sensors...
radiometry, radiant flux or radiant power is the radiant energy emitted, reflected, transmitted, or received per unit time, and spectral flux or spectral power...
radiation from all matter, most entropy flux calculations involve incident, reflected and emitted radiativefluxes. The energy and entropy of unpolarized...
dioxide determines the radiative balance of Earth atmosphere, carbon dioxide removal techniques can be applied to reduce the radiative forcing. Solar radiation...
Electromagnetic flux may refer to one of the following: Flux or flux density of electromagnetic radiation Electric flux and magnetic fluxRadiativeflux. This disambiguation...
with steady winds driven by broad-spectrum radiation is that both the radiativeflux and gravitational acceleration scale with r −2. The ratio between these...
scattering processes. The equation of radiative transfer describes these interactions mathematically. Equations of radiative transfer have application in a wide...
it. In pictorial form, this electric field is shown as "lines of flux" being radiated from a dot (the charge). These are called Gauss lines. Note that...
Poynting vector (or Umov–Poynting vector) represents the directional energy flux (the energy transfer per unit area, per unit time) or power flow of an electromagnetic...
in time. Radiative equilibrium is the specific case of thermal equilibrium, for the case in which the exchange of heat is done by radiative heat transfer...
space, i.e., the only way the planet cools itself. Radiative heating from absorbed sunlight, and radiative cooling to space via OLR power the heat engine...
{\displaystyle \ I_{0}~.} From the fields calculated above, one can find the radiatedflux (power per unit area) at any point as the magnitude of the real part...
to maximize radiative heat loss is highly desirable. When the incoming radiative heat from the Sun is balanced by the outgoing radiative heat emission...
delivery of the heat. Radiative heat flux and effects are given as follows: At distances on the scale of the wavelength of a radiated electromangetic wave...
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