In radiometry, irradiance is the radiant flux received by a surface per unit area. The SI unit of irradiance is the watt per square metre (W⋅m−2). The...

Solar irradiance is the power per unit area (surface power density) received from the Sun in the form of electromagnetic radiation in the wavelength range...

given point on the Earth's surface. It cannot be simply related to the irradiance (measured in W/m2) because the UV of greatest concern occupies a spectrum...

estimated by NASA to be about a quarter of Earth's average total solar irradiance. The ultraviolet radiation in sunlight has both positive and negative...

flux density measuring mean solar electromagnetic radiation (total solar irradiance) per unit area. It is measured on a surface perpendicular to the rays...

reconstructed total solar irradiance with models favor the PMOD series, thus reconciling the ACRIM-gap issue. Solar irradiance varies systematically over...

The PI (or photosynthesis-irradiance) curve is a graphical representation of the empirical relationship between solar irradiance and photosynthesis. A derivation...

satellite observatory orbiting the Earth. Spectral measurements identify the irradiance of the Sun by characterizing the Sun's energy and emissions in the form...

smaller than this. Solar luminosity is related to solar irradiance (the solar constant). Solar irradiance is responsible for the orbital forcing that causes...

receives typically about one kilowatt of sunlight from the Sun (the solar irradiance) (on a clear day at midday, close to the equator). Megawatt Many events...

Patterns of solar irradiance and solar variation have been a main driver of climate change over the millions to billions of years of the geologic time...

High-throughput Spectroscopic Telescope (EUVST [ja]) and the Solar Spectral Irradiance Monitor (SoSpIM). It is scheduled to launch in fiscal year 2028. The mission...

with irradiance, increasing as the irradiance increases, but reaching a plateau at higher irradiance. At low irradiance, increasing the temperature has little...

(ano) 'above, sky') is a type of actinometer used for measuring solar irradiance on a planar surface and it is designed to measure the solar radiation...

steradian per nanometre (W·sr−1·nm−1). Radiant intensity is distinct from irradiance and radiant exitance, which are often called intensity in branches of...

candela (cd) Irradiance, a radiometric quantity, measured in watts per square meter (W/m2) Intensity (physics), the name for irradiance used in other...

In optics the noise-equivalent flux density (NEFD) or noise-equivalent irradiance (NEI) of a system is the level of flux density required to be equivalent...

output spectrum to the integrated irradiance in several wavelength intervals. The reference percentage of total irradiance is shown below in Table 2 for the...

south, it is the latitude at which solar irradiance is closest to the planetary average, with higher solar irradiance equatorward and lower poleward. Starting...

radiant energy received by a surface per unit area, or equivalently the irradiance of a surface, integrated over time of irradiation, and spectral exposure...

amount of illuminance for a given amount of irradiance is maximum: 683.002 lx per 1 W/m2; the irradiance needed to make 1 lx at this wavelength is about...

equatorial oceans to the polar regions. Earth receives 1361 W/m2 of solar irradiance. The amount of solar energy that reaches Earth's surface decreases with...

Cavity Radiometer Irradiance Monitor Satellite, or ACRIMSAT was a satellite carrying the ACRIM-3 (Active Cavity Radiometer Irradiance Monitor 3) instrument...

entire sphere of directions, produces a single scalar value—the total irradiance at that point, and a resultant direction. The figure shows this calculation...

greenhouse gases and aerosols, and changes in surface albedo and solar irradiance. In more technical terms, it is defined as "the change in the net, downward...

quantity (e.g. radiant energy, radiant flux, radiant intensity, radiance, irradiance, radiant exitance, radiosity, luminance, luminous flux, luminous intensity...

interface, a brain-computer interface Direct normal irradiance, a measure of the solar irradiance striking a surface held normal to the line of sight...

called irradiance. Flux emitted from a surface may be called radiant exitance or radiant emittance. The ratio of irradiance reflected to the irradiance received...

testing.[citation needed] Solar irradiance variability assessments are useful for solar power applications. Solar irradiance variability at any location over...

toured with Dysrhythmia and Behold... The Arctopus. The band released Irradiance in 2010. Since disbanding in 2011, the band have formed The Universe Divide...