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REFLECTED GLOBAL RADIATION [2 records]

Record 1 2010-05-10

English

Subject field(s)
  • Weather Stations and Meteorological Instruments and Equipment
  • Scientific Instruments
CONT

Eppley Precision Spectral Pyranometer, PSP. This instrument is considered to be the most accurate radiometer produced commercially for the measurement of global sun and sky radiation, totally or in defined wavelength bands. It can be inverted to measure reflected shortwave radiation(from which the albedo can be calculated). The PSP has a circular multi-junction thermopile of the plated(copper-constantan) wire wound type which is temperature compensated in order to get a response that is independent of ambient temperature. The temperature sensed by the detector is nearly linear with the flux density of incident radiation. The instrument is supplied with a pair of removable precision ground and polished concentric hemispheres of Schott optical glass. The inner hemisphere is transparent to a wavelength of 0. 285-2. 800 µm. The outer dome can be replaced by Schott glass hemispherical filters which transmit within specified bandwidths. Desiccant is placed in the side of the instrument to absorb humidity inside the glass domes. Measurements are reported in Wm-2.

CONT

The Eppley PSP (or simply Eppley Pyranometer) is an instrument for the measurement of radiation in the range approximately between 285 and 2800 nm. As noted earlier, this wavelength range is commonly referred to as shortwave radiation, and it’s primary source is the sun.

French

Domaine(s)
  • Stations, instruments et équipements météorologiques
  • Instruments scientifiques
CONT

Les capteurs de rayonnement permettent la mesure des flux sous un angle solide 2[pi] vers le haut et vers le bas dans quatre bandes spectrales : deux pyranomètres Eppley PSP -- visible -- haut et bas; deux pyranomètres Eppley PSP -- visible rouge -- haut et bas; deux pyranomètres Eppley PIR -- infrarouge -- haut et bas; deux photomètres Eppley UVR -- ultraviolet -- haut et bas.

Spanish

Save record 1

Record 2 2002-06-12

English

Subject field(s)
  • Atmospheric Physics
  • Electromagnetic Radiation
DEF

Upward-directed solar radiation, reflected and scattered by the Earth’s surface and the atmosphere.

French

Domaine(s)
  • Physique de l'atmosphère
  • Rayonnements électromagnétiques
DEF

Rayonnement solaire dirigé vers le haut, après réflexion et diffusion par la surface terrestre et par l'atmosphère.

Spanish

Campo(s) temático(s)
  • Física de la atmósfera
  • Radiación electromagnética
DEF

Radiación solar reflejada y difundida por la superficie y la atmósfera de la Tierra y dirigida hacia arriba.

Save record 2

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