Accurate solar 'constant' determinations by cavity pyrheliometers
Journal Article
·
· J. Geophys. Res.; (United States)
Total solar irradiance was observed outside the earth's atmosphere by three types of absolute cavity pyrheliometer in a June 1976 sounding rocket experiment. The 1367 W/m/sup 2/ average solar 'constant' result is uncertain by less than +- 0.5%, the most accurate determination to date. Nearly simultaneous observations by the Nimbus 6 earth radiation budget total irradiance detector of 1389 W/m/sup 2/ exceeded the rocket result by 1.6%. These recent results are discussed in the context of a summary of solar constant determinations made above the troposphere by cavity pyrheliometers.
- Research Organization:
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91103
- OSTI ID:
- 6583825
- Journal Information:
- J. Geophys. Res.; (United States), Journal Name: J. Geophys. Res.; (United States) Vol. 83:C8; ISSN JGREA
- Country of Publication:
- United States
- Language:
- English
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