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Solar noise simulations in irradiance

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Abstract

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. The results indicate that the overall shape of the background signal in the simulations reproduce the observations at low frequency. However when the granulation lifetimes are about 500 seconds the simulated data do not correspond to the observations between 1 and 2 mHz.

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Authors and Affiliations

  1. Norwegian Space Centre, Smestad, PO Box 85, N-0309, Oslo, Norway

    B. N. Andersen

  2. Institute of Theoretical Astrophysics, University of Oslo, Blindern, PO Box 1029, N-0315, Oslo, Norway

    T. Leifsen

  3. Space Science Department, ESTEC SC, PO Box 299, NL-2200, AG Noordwijk

    T. Toutain

Authors
  1. B. N. Andersen
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  2. T. Leifsen
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  3. T. Toutain
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Andersen, B.N., Leifsen, T. & Toutain, T. Solar noise simulations in irradiance. Sol Phys 152, 247–252 (1994). https://doi.org/10.1007/BF01473211

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  • DOI: https://doi.org/10.1007/BF01473211

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