Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Sun_photometer> ?p ?o }
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- Sun_photometer abstract "A sun photometer is a type of photometer conceived in such a way that it points at the sun.Recent sun photometers are automated instruments incorporating a sun-tracking unit, an appropriate opticalsystem, a spectrally filtering device, a photodetector, and adata acquisition system.The measured quantity is called direct-sun radiance.When a sun-photometer is placed somewhere within the earth's atmosphere, the measuredradiance is not equal to the radiance emitted by the sun (i.e. the solar extraterrestrial radiance),because the solar flux is reduced by atmospheric absorptionand scattering.Therefore, the measured radiant flux is due to a combination of what is emitted by the sun and theeffect of the atmosphere; the link between these quantities is given by Beer's law.The atmospheric effect can be removed with Langley extrapolation; this method therefore allowsmeasuring the solar extraterrestrial radiance with ground-based measurements.Once the extraterrestrial radiance is known, one can use the sun photometer for studying theatmosphere, and in particular for determining the atmospheric optical depth.Also, if the signal at two or more suitably selected spectral intervalsis measured, one can use the information derived for calculating the vertically integrated concentrationof selected atmospheric gases, such as water vapour, ozone, etc.".
- Sun_photometer thumbnail Päikese_fotomeeter_CIMEL_318A.jpg?width=300.
- Sun_photometer wikiPageID "7149215".
- Sun_photometer wikiPageLength "1943".
- Sun_photometer wikiPageOutDegree "21".
- Sun_photometer wikiPageRevisionID "598407481".
- Sun_photometer wikiPageWikiLink AERONET.
- Sun_photometer wikiPageWikiLink Absorption_(electromagnetic_radiation).
- Sun_photometer wikiPageWikiLink Atmosphere.
- Sun_photometer wikiPageWikiLink Atmosphere_of_Earth.
- Sun_photometer wikiPageWikiLink Beer–Lambert_law.
- Sun_photometer wikiPageWikiLink Category:Electromagnetic_radiation_meters.
- Sun_photometer wikiPageWikiLink Category:Optical_devices.
- Sun_photometer wikiPageWikiLink Data_acquisition.
- Sun_photometer wikiPageWikiLink Dobson_ozone_spectrophotometer.
- Sun_photometer wikiPageWikiLink Electromagnetic_spectrum.
- Sun_photometer wikiPageWikiLink Langley_extrapolation.
- Sun_photometer wikiPageWikiLink Optical_depth.
- Sun_photometer wikiPageWikiLink Ozone.
- Sun_photometer wikiPageWikiLink Photodetector.
- Sun_photometer wikiPageWikiLink Photometer.
- Sun_photometer wikiPageWikiLink Radiance.
- Sun_photometer wikiPageWikiLink Scattering.
- Sun_photometer wikiPageWikiLink Sun.
- Sun_photometer wikiPageWikiLink Water_vapor.
- Sun_photometer wikiPageWikiLink File:Päikese_fotomeeter_CIMEL_318A.jpg.
- Sun_photometer wikiPageWikiLinkText "Sun photometer".
- Sun_photometer wikiPageWikiLinkText "sun photometer".
- Sun_photometer wikiPageWikiLinkText "sunphotometer".
- Sun_photometer wikiPageUsesTemplate Template:Optics-stub.
- Sun_photometer subject Category:Electromagnetic_radiation_meters.
- Sun_photometer subject Category:Optical_devices.
- Sun_photometer hypernym Photometer.
- Sun_photometer type Instrument.
- Sun_photometer type Application.
- Sun_photometer type Instrument.
- Sun_photometer comment "A sun photometer is a type of photometer conceived in such a way that it points at the sun.Recent sun photometers are automated instruments incorporating a sun-tracking unit, an appropriate opticalsystem, a spectrally filtering device, a photodetector, and adata acquisition system.The measured quantity is called direct-sun radiance.When a sun-photometer is placed somewhere within the earth's atmosphere, the measuredradiance is not equal to the radiance emitted by the sun (i.e.".
- Sun_photometer label "Sun photometer".
- Sun_photometer sameAs Q1038481.
- Sun_photometer sameAs Sonnenphotometer.
- Sun_photometer sameAs Sonnephotometer.
- Sun_photometer sameAs m.0h6vvm.
- Sun_photometer sameAs Q1038481.
- Sun_photometer sameAs 日照計.
- Sun_photometer wasDerivedFrom Sun_photometer?oldid=598407481.
- Sun_photometer depiction Päikese_fotomeeter_CIMEL_318A.jpg.
- Sun_photometer isPrimaryTopicOf Sun_photometer.
