Hostname: page-component-8448b6f56d-dnltx Total loading time: 0 Render date: 2024-04-25T05:40:24.622Z Has data issue: false hasContentIssue false
  • English
  • Français

Long-term solar irradiance variability

Published online by Cambridge University Press:  25 May 2016

Judit M. Pap
Judit M. Pap*
Affiliation:
Department of Physics and Astronomy, University of California, Los Angeles, CA 90095-1562 Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Measurements of the solar energy throughout the solar spectrum and understanding its variability provide important information about the physical processes and structural changes in the solar interior and in the solar atmosphere. Solar irradiance measurements (both bolometric and at various wavelengths) over the last two decades have demonstrated that the solar radiative output changes with time as an effect of the waxing and waning solar activity. Although the overall pattern of the long-term variations is similar in the entire spectrum and at various wavelengths, being higher during high solar activity conditions, remarkable differences exist between the magnitude and shape of the observed changes. These differences arise from the different physical conditions in the solar atmosphere where the irradiances are emitted. The aim of this paper is to discuss the solar-cycle-related long-term changes in solar total and UV irradiances. The space-borne irradiance observations are compared to ground-based indices of solar magnetic activity, such as the Photometric Sunspot Index, full disk magnetic flux, and the Mt. Wilson Magnetic Plage Strength Index. Considerable part of the research described in this paper was stimulated by the discussions with the late Philippe Delache, who will always remain in the heart and memory of the author of this paper.

Type
Part III: Special session Dedicated to Philippe Delache
Information
Symposium - International Astronomical Union , Volume 181: Sounding Solar and Stellar Interiors , 1997 , pp. 235 - 250
Copyright
Copyright © Kluwer 1997 

References

Chapman, G.A. (1987) Ann. Rev. Astron. Astrophys. 25, 633.Google Scholar
Chapman, G.A. and Boyden, J. (1986) Astrophys. J. 302, L71.Google Scholar
Delache, Ph., Lacrare, F., and Sadsaoud, H. (1986) in Christensen Dalsgaard, J. and Frandsen, S. (eds.), Advance in Helio- and Astroseismology, IAU Press, p. 223.Google Scholar
Donnelly, R.F., White, O.R., and Livingston, W.C. (1994) Solar Physics 152, 69.Google Scholar
Foukal, P. and Lean, J. (1988) Ap.J. 328, 347.Google Scholar
Foukal, P. and Lean, J. (1990) Science 247, 505.Google Scholar
Fröhlich, C. (1997) in Pap, J.M., Fröhlich, C., and Ulrich, R.K. (eds.), The Proceedings of the SOLERS22 1996 Workshop, Kluwer Academic Publishers, Dordrecht, in press.Google Scholar
Fröhlich, C., Foukal, P., Hickey, J.R., Hudson, H.S., and Willson, R.C. (1991) in Sonnett, C.P., Giampapa, M.S., and Matthews, M.S. (eds.), The Sun in Time, Univ. Arizona Press, Tucson, p. 11.Google Scholar
Fröhlich, C., Pap, J., and Hudson, H.S. (1994) Solar Physics 152, 111.CrossRefGoogle Scholar
Fröhlich, C., Andersen, B., Appourchaux, T., Berthomieu, G., Crommelynck, D., Domingo, V., Fichot, A, Finsterle, W., Gómez, M., Gough, D., Jiménez, A., Jeifsen, T., Lombaerts, M., Pap, J., Provost, J., Roca Cortés, T., Romero, J., Roth, H., Sekii, T., Telljohann, S., Toutain, T., Wehrli, Ch. (1997) Solar Physics 170, 1.Google Scholar
Harvey, K. (1994) in Pap, J.M., Fröhlich, C., Hudson, H.S., and Solanki, S.K. (eds.), The Sun as a Variable Star: Solar and Stellar Irradiance Variations, Cambridge University Press, Cambridge, p. 217.Google Scholar
Heath, D.F. and Schlesinger, B.M. (1986) J. Geophys, Res 91, 8672.Google Scholar
Hudson, H.S., Silva, S., Woodard, M. and Willson, R.C. (1982) Solar Physics 76, 211.Google Scholar
Kuhn, J. (1996) in Roca Cortes, T. (ed.), Global Changes in the Sun, Cambridge University Press, Cambridge, in press.CrossRefGoogle Scholar
Kuhn, J. and Libbrecht, K.G. (1991) Ap.J. 381, L35–L37.Google Scholar
Kuhn, J., Libbrecht, K.G. and Dicke, R.H. (1988) Science 242, 908.Google Scholar
Lean, J. (1988) Adv. Space Res. Vol 8 (5), 263.CrossRefGoogle Scholar
Lean, J. (1989) Science 244, 197.Google Scholar
London, J., Pap, J., and Rottman, G. (1989) in Lastovicka, J., Miles, T., and Neill, O. (eds.), Middle Atmosphere Program Handbook Vol 29, p. 9.Google Scholar
Müller, E.A., Stettier, P., Rast, J., Kneubühl, F.K., and Huguenin, D. (1975) in Chiuderi, , Landini, , and Righini, (eds.), First European Solar Meeting, Firenze 105.Google Scholar
Nesme-Ribes, E., Sokoloff, D., and Sadourney, R. (1994) in Pap, J.M., Fröhlich, C., Hudson, H.S., and Solanki, S.K. (eds.), The Sun as a Variable Star: Solar and Stellar Irradiance Variations, Cambridge University Press, Cambridge, p. 244.Google Scholar
Pap, J., Tobiska, W.K., and Bouwer, D. (1990) Solar Physics 129, 165.Google Scholar
Pap, J., London, J., and Rottman, G. (1991) Astron. Astrophys. 245, 648.Google Scholar
Pap, J., Vigouroux, A. and Delache, Ph. (1996) Solar Physics 167, 125.CrossRefGoogle Scholar
Pecker, J.-C. (1994) Vistas in Astronomy Vol. 38, 111.CrossRefGoogle Scholar
Radick, R. (1994) in Pap, J.M., Fröhlich, C., Hudson, H.S., and Solanki, S.K. (eds.), The Sun as a Variable Star: Solar and Stellar Irradiance Variations, Cambridge University Press, Cambridge, p. 109.Google Scholar
Ribes, E., Mein, P., and Manganey, A. (1985) Nature 318, 170.CrossRefGoogle Scholar
Ulrich, R. (1991) Adv. Space Res. Vol. 11 (4), 217.CrossRefGoogle Scholar
Ulrich, R. and Bertello, E. (1995) Nature 377, 214.Google Scholar
Vautard, R., Yiou, P., and Ghil, M. (1992) Physica D 58, 95.Google Scholar
White, O.R., Rottman, G.J., Woods, T.N., Knapp, B.G., Keil, S.L., Livingston, W.C., Tapping, K.F. Donnelly, R.F., and Puga, L. (1994) J. Geophys. Res. 89, 369.CrossRefGoogle Scholar
Willson, R.C. (1994) in Pap, J.M., Fröhlich, C., Hudson, H.S., and Solanki, S.K. (eds.), The Sun as a Variable Star: Solar and Stellar Irradiance Variations, Cambridge University Press, Cambridge, p. 54.Google Scholar
Willson, R.C. and Hudson, H.S, (1988) Nature 332, 810.CrossRefGoogle Scholar
Willson, R.C., Gulkis, S., Janssen, M., Hudson, H.S., and Chapman, G.A. (1981) Science 211, 700.CrossRefGoogle Scholar