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... 8 KB (1,069 words) - 04:50, 12 October 2023 |
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... 52 KB (5,649 words) - 19:03, 24 April 2024 |
Ultraviolet index (redirect from Diffey weighted UV irradiance) 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... 23 KB (2,262 words) - 22:27, 29 February 2024 |
Solar Radiation and Climate Experiment (redirect from Solar Irradiance Monitor) satellite observatory orbiting the Earth. Spectral measurements identify the irradiance of the Sun by characterizing the Sun's energy and emissions in the form... 10 KB (1,088 words) - 15:00, 22 December 2023 |
Solar constant (section Solar irradiance) flux density measuring mean solar electromagnetic radiation (total solar irradiance) per unit area. It is measured on a surface perpendicular to the rays... 13 KB (1,636 words) - 07:02, 14 March 2024 |
PI curve (redirect from Photosynthesis-irradiance curve) The PI (or photosynthesis-irradiance) curve is a graphical representation of the empirical relationship between solar irradiance and photosynthesis. A derivation... 7 KB (925 words) - 12:52, 17 March 2023 |
Solar cycle (redirect from Solar activity and irradiance measurement) reconstructed total solar irradiance with models favor the PMOD series, thus reconciling the ACRIM-gap issue. Solar irradiance varies systematically over... 88 KB (9,887 words) - 00:54, 29 April 2024 |
ACRIMSAT (redirect from Active Cavity Radiometer Irradiance Monitor Satellite) Cavity Radiometer Irradiance Monitor Satellite, or ACRIMSAT was a satellite carrying the ACRIM-3 (Active Cavity Radiometer Irradiance Monitor 3) instrument... 9 KB (863 words) - 13:30, 20 February 2023 |
SOLAR-C (redirect from Solar Spectral Irradiance Monitor) High-throughput Spectroscopic Telescope (EUVST [ja]) and the Solar Spectral Irradiance Monitor (SoSpIM). It is scheduled to launch in fiscal year 2028. The mission... 5 KB (338 words) - 16:21, 15 March 2024 |
measure total and spectral solar irradiance. Radiometry Radiation Willson, Richard C. (November 1981). "Solar total irradiance observations by Active Cavity... 764 bytes (56 words) - 04:01, 13 March 2024 |
(SMARTS) is a computer program designed to evaluate the surface solar irradiance components in the shortwave spectrum (spectral range 280 to 4000 nm) under... 11 KB (1,463 words) - 15:53, 3 July 2022 |
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... 29 KB (3,223 words) - 00:36, 24 April 2024 |
interface, a brain-computer interface Direct normal irradiance, a measure of the solar irradiance striking a surface held normal to the line of sight... 1 KB (227 words) - 12:54, 1 April 2024 |
candela (cd) Irradiance, a radiometric quantity, measured in watts per square meter (W/m2) Intensity (physics), the name for irradiance used in other... 968 bytes (153 words) - 05:40, 5 December 2022 |
(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... 16 KB (2,073 words) - 07:01, 23 April 2024 |
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... 5 KB (590 words) - 17:50, 25 November 2022 |
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... 71 KB (7,633 words) - 18:45, 26 February 2024 |
Sunlight Solar radiation Solar output - Direct measurements of solar irradiance, or solar output, have been available from satellites only since the late... 3 KB (344 words) - 09:41, 9 February 2023 |
Noise-equivalent flux density (redirect from Noise-equivalent irradiance) 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... 1 KB (178 words) - 21:54, 14 July 2022 |
called irradiance. Flux emitted from a surface may be called radiant exitance or radiant emittance. The ratio of irradiance reflected to the irradiance received... 4 KB (481 words) - 17:49, 7 May 2021 |
by some scientists, to be correlated with long-term change in solar irradiance, which, in turn, might influence Earth's long-term climate. The solar... 166 KB (18,759 words) - 18:29, 27 April 2024 |
radiant energy received by a surface per unit area, or equivalently the irradiance of a surface, integrated over time of irradiation, and spectral exposure... 2 KB (385 words) - 04:54, 5 December 2023 |
entire sphere of directions, produces a single scalar value—the total irradiance at that point, and a resultant direction. The figure shows this calculation... 37 KB (4,611 words) - 10:23, 18 April 2024 |