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Solar irradiance reference spectra

2004
The solar spectrum is a key input for the study of the planetary atmospheres. It allows the understanding through theoretical modeling of the atmospheric properties (e.g., composition and variability). Furthermore, a reference model is useful for the preparation of instruments and platforms to be operated in space.
Thuillier, Gérard   +6 more
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Solar irradiance monitor

Renewable Energy, 1993
Abstract The data on the intensity distribution of solar radiation is essential for the designer to size solar energy systems, required for specific applications. The solar irradiance monitor has been developed to measure and record solar irradiance data from morning to evening at intervals of 1 min without the presence of a technician or ...
A. Thomas, A. Ganesan, S.A. Mujeeb
openaire   +1 more source

Solar Irradiance Observations

Science, 1984
The absolute radiometer on Spacelab 1 was used to obtain solar irradiance observations from space. A number of effects must be taken into account in the data reduction. A provisional value was obtained for the mean solar constant during the observation period (6 to 8 December 1983).
D. Crommelynck, V. Domingo
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Assessment of solar irradiance spectra

Applied Optics, 1986
Analyse du rayonnement spectral ascendant et descendant au-dessus d'une surface marine.
D, Spitzer, M R, Wernand
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Solar Irradiance Variability

Metrologia, 1991
Support is given for the suggestion that the mean annual value of the solar constant varies as an algebraic sum of changes in effective temperature and photospheric radius. A set of harmonic constituents covering the period 1979 to 1987 is suggested.
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Reconstruction of Past Solar Irradiance

Space Science Reviews, 2000
Accurate measurements of solar irradiance started in 1978, but a much longer time series is needed in order to uncover a possible influence on the Earth's climate. In order to reconstruct the irradiance prior to 1978 we require both an understanding of the underlying causes of solar irradiance variability as well as data describing the state of the Sun
Solanki, S., Fligge, M.
openaire   +2 more sources

Observations of Solar Irradiance Variability

Science, 1981
High-precision measurements of total solar irradiance, made by the active cavity radiometer irradiance monitor on the Solar Maximum Mission satellite, show the irradiance to have been variable throughout the first 153 days of observations.
R C, Willson   +4 more
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Solar Noise Simulations in Irradiance

Solar Physics, 1994
The global signature of granulation, meso- and supergranulation is calculated using values for intensities and lifetimes from spatially resolved observations. These simulations are compared with observations from ACRIM, IPHIR and the SOVA-1 photometers.
B. N. Andersen, T. Leifsen, T. Toutain
openaire   +1 more source

Solar irradiance variability

Atmospheric Research, 1989
Since November 1978 a set of total solar irradiance (TSI) measurements from space is available, yielding a time series of more than 23 years. From measurements made by different space radiometers (HF on NIMBUS 7, ACRIM I on SMM, ACRIM II on UARS and VIRGO on SOHO) a composite record of TSI can be compiled. This leads to a reliable record of TSI with an
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Solar Irradiance Variations

1999
The desire to detect possible variations of the total solar irradiance (TSI), the total amount of power supplied to the Earth from the Sun by radiative means, has been a goal for more than a century. Interest in this quantity arose from a realization that it is a determining factor of the Earth’s climate.
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