Solar irradiance (nonfiction): Difference between revisions
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'''Solar irradiance''' is the power per unit area received from the Sun in the form of electromagnetic radiation in the wavelength range of the measuring instrument | '''Solar irradiance''' is the power per unit area received from the Sun in the form of electromagnetic radiation in the wavelength range of the measuring instrument. | ||
Irradiance may be measured in space or at the Earth's surface after atmospheric absorption and scattering. | |||
It is measured perpendicular to the incoming sunlight. | It is measured perpendicular to the incoming sunlight. | ||
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The solar constant is a conventional measure of mean TSI at a distance of one astronomical Unit (AU). | The solar constant is a conventional measure of mean TSI at a distance of one astronomical Unit (AU). | ||
Irradiance is a function of distance from the Sun, the solar cycle, and cross-cycle changes. | Irradiance is a function of distance from the Sun, the solar cycle, and cross-cycle changes. Irradiance on Earth is also measured perpendicular to the incoming sunlight. | ||
Insolation is the power received on Earth per unit area on a horizontal surface. | Insolation is the power received on Earth per unit area on a horizontal surface. It depends on the height of the Sun above the horizon. | ||
== In the News == | |||
== | <gallery mode="traditional"> | ||
File:Sunspots.jpg|link=Sunspot (nonfiction)|[[Sunspot (nonfiction)|Sunspots]] condemn the word "maculae" as offensive stereotype. | |||
File:Railfans_on_1939_camera_excursion.jpg|link=Railfan (nonfiction)|[[Railfan (nonfiction)|Railfans]] using steam train to power sunspotter cameras. | |||
File:Light 1943.jpg|link=Light (nonfiction)|[[Light (nonfiction)|Light beams]] reach Union Station, prepare to board train (1943). | |||
</gallery> | |||
== Fiction cross-reference == | == Fiction cross-reference == | ||
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* [[Sunspotter]] | * [[Sunspotter]] | ||
== External links | == Nonfiction cross-reference == | ||
External links: | |||
* [https://en.wikipedia.org/wiki/Solar_irradiance Solar irradiance] @ Wikipedia | * [https://en.wikipedia.org/wiki/Solar_irradiance Solar irradiance] @ Wikipedia | ||
Revision as of 21:04, 23 June 2016
Solar irradiance is the power per unit area received from the Sun in the form of electromagnetic radiation in the wavelength range of the measuring instrument.
Irradiance may be measured in space or at the Earth's surface after atmospheric absorption and scattering.
It is measured perpendicular to the incoming sunlight.
Total solar irradiance (TSI), is a measure of the solar power over all wavelengths per unit area incident on the Earth's upper atmosphere.
The solar constant is a conventional measure of mean TSI at a distance of one astronomical Unit (AU).
Irradiance is a function of distance from the Sun, the solar cycle, and cross-cycle changes. Irradiance on Earth is also measured perpendicular to the incoming sunlight.
Insolation is the power received on Earth per unit area on a horizontal surface. It depends on the height of the Sun above the horizon.
In the News
Sunspots condemn the word "maculae" as offensive stereotype.
Railfans using steam train to power sunspotter cameras.
Light beams reach Union Station, prepare to board train (1943).
Fiction cross-reference
Nonfiction cross-reference
External links:
- Solar irradiance @ Wikipedia