Abstract

As a result of sky radiance anisotropy, significant errors spoil diffuse solar irradiance data obtained by means of noncosine-true instruments, which happens in spite of knowledge of the relative cosine response. To reduce these errors we recommend a method that involves an additional measurement of diffuse irradiance from a horizon band. The efficiency of the so-called double-measurement method is found to be optimum for a 25° horizon band elevation. We confirm the feasibility of the method with relevance tests that use diffuse solar spectral measurements carried out on cloudless skies by means of an UV spectroradiometer.

© 1996 Optical Society of America

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References

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  1. K. Ya. Kondratyev, Radiation in the Atmosphere (Academic, New York, 1969), p. 82.
  2. J. J. DeLuisi, J. M. Harris, “A determination of the absolute radiant energy of a Robertson–Berger meter sunburn unit,” Atmos. Environ. 17, 751–758 (1983).
    [CrossRef]
  3. R. G. Grainger, R. E. Basher, R. L. McKenzie, “UV-B Robertson–Berger meter characterization and field calibration,” Appl. Opt. 32, 343–349 (1993).
    [CrossRef] [PubMed]
  4. G. Seckmeyer, G. Bernhard, “Cosine error correction of spectral UV-irradiances,” in Atmospheric Radiation, K. H. Stamnes, ed., Proc. SPIE2049, 140–151 (1993).
  5. A. de La Casinière, T. Cabot, S. Benmansour, “Measuring spectral diffuse solar irradiance with non-cosine flat-plate diffusers,” Sol. Energy 54, 173–182 (1995).
    [CrossRef]
  6. J. J. Michalsky, L. C. Harrison, W. E. Berkheiser, “Cosine response characteristics of some radiometric and photometrics sensors,” Sol. Energy 54, 397–402 (1995).
    [CrossRef]
  7. J. K. Page, Prediction of Solar Radiation on Inclined Surfaces, Solar Energy R&D in the European Community, Series F: Solar Radiation Data (Reidel, Dordrecht, The Netherlands, 1986), Vol 3, p. 149.
  8. M. D. Steven, M. H. Unsworth, “The diffuse irradiance of slopes under cloudless skies,” Q. J. R. Meteorol. Soc. 105, 593–602 (1979).
    [CrossRef]
  9. J. C. Grenier, A. de La Casinière, T. Cabot, “A spectral model of Linke’s turbidity factor and its experimental implications,” Sol. Energy 52, 303–313 (1994).
    [CrossRef]
  10. J. C. Grenier, A. de La Casinière, T. Cabot, “Atmospheric turbidity analyzed by means of standardized Linke’s turbidity factor,” J. Appl. Meteorol. 34, 1449–1458 (1995).
    [CrossRef]
  11. M. Iqbal, An Introduction to Solar Radiation (Academic, Toronto, 1983), pp. 107–168.

1995 (3)

A. de La Casinière, T. Cabot, S. Benmansour, “Measuring spectral diffuse solar irradiance with non-cosine flat-plate diffusers,” Sol. Energy 54, 173–182 (1995).
[CrossRef]

J. J. Michalsky, L. C. Harrison, W. E. Berkheiser, “Cosine response characteristics of some radiometric and photometrics sensors,” Sol. Energy 54, 397–402 (1995).
[CrossRef]

J. C. Grenier, A. de La Casinière, T. Cabot, “Atmospheric turbidity analyzed by means of standardized Linke’s turbidity factor,” J. Appl. Meteorol. 34, 1449–1458 (1995).
[CrossRef]

1994 (1)

J. C. Grenier, A. de La Casinière, T. Cabot, “A spectral model of Linke’s turbidity factor and its experimental implications,” Sol. Energy 52, 303–313 (1994).
[CrossRef]

1993 (1)

1983 (1)

J. J. DeLuisi, J. M. Harris, “A determination of the absolute radiant energy of a Robertson–Berger meter sunburn unit,” Atmos. Environ. 17, 751–758 (1983).
[CrossRef]

1979 (1)

M. D. Steven, M. H. Unsworth, “The diffuse irradiance of slopes under cloudless skies,” Q. J. R. Meteorol. Soc. 105, 593–602 (1979).
[CrossRef]

Basher, R. E.

Benmansour, S.

A. de La Casinière, T. Cabot, S. Benmansour, “Measuring spectral diffuse solar irradiance with non-cosine flat-plate diffusers,” Sol. Energy 54, 173–182 (1995).
[CrossRef]

Berkheiser, W. E.

J. J. Michalsky, L. C. Harrison, W. E. Berkheiser, “Cosine response characteristics of some radiometric and photometrics sensors,” Sol. Energy 54, 397–402 (1995).
[CrossRef]

Bernhard, G.

G. Seckmeyer, G. Bernhard, “Cosine error correction of spectral UV-irradiances,” in Atmospheric Radiation, K. H. Stamnes, ed., Proc. SPIE2049, 140–151 (1993).

Cabot, T.

A. de La Casinière, T. Cabot, S. Benmansour, “Measuring spectral diffuse solar irradiance with non-cosine flat-plate diffusers,” Sol. Energy 54, 173–182 (1995).
[CrossRef]

J. C. Grenier, A. de La Casinière, T. Cabot, “Atmospheric turbidity analyzed by means of standardized Linke’s turbidity factor,” J. Appl. Meteorol. 34, 1449–1458 (1995).
[CrossRef]

J. C. Grenier, A. de La Casinière, T. Cabot, “A spectral model of Linke’s turbidity factor and its experimental implications,” Sol. Energy 52, 303–313 (1994).
[CrossRef]

de La Casinière, A.

J. C. Grenier, A. de La Casinière, T. Cabot, “Atmospheric turbidity analyzed by means of standardized Linke’s turbidity factor,” J. Appl. Meteorol. 34, 1449–1458 (1995).
[CrossRef]

A. de La Casinière, T. Cabot, S. Benmansour, “Measuring spectral diffuse solar irradiance with non-cosine flat-plate diffusers,” Sol. Energy 54, 173–182 (1995).
[CrossRef]

J. C. Grenier, A. de La Casinière, T. Cabot, “A spectral model of Linke’s turbidity factor and its experimental implications,” Sol. Energy 52, 303–313 (1994).
[CrossRef]

DeLuisi, J. J.

J. J. DeLuisi, J. M. Harris, “A determination of the absolute radiant energy of a Robertson–Berger meter sunburn unit,” Atmos. Environ. 17, 751–758 (1983).
[CrossRef]

Grainger, R. G.

Grenier, J. C.

J. C. Grenier, A. de La Casinière, T. Cabot, “Atmospheric turbidity analyzed by means of standardized Linke’s turbidity factor,” J. Appl. Meteorol. 34, 1449–1458 (1995).
[CrossRef]

J. C. Grenier, A. de La Casinière, T. Cabot, “A spectral model of Linke’s turbidity factor and its experimental implications,” Sol. Energy 52, 303–313 (1994).
[CrossRef]

Harris, J. M.

J. J. DeLuisi, J. M. Harris, “A determination of the absolute radiant energy of a Robertson–Berger meter sunburn unit,” Atmos. Environ. 17, 751–758 (1983).
[CrossRef]

Harrison, L. C.

J. J. Michalsky, L. C. Harrison, W. E. Berkheiser, “Cosine response characteristics of some radiometric and photometrics sensors,” Sol. Energy 54, 397–402 (1995).
[CrossRef]

Iqbal, M.

M. Iqbal, An Introduction to Solar Radiation (Academic, Toronto, 1983), pp. 107–168.

Kondratyev, K. Ya.

K. Ya. Kondratyev, Radiation in the Atmosphere (Academic, New York, 1969), p. 82.

McKenzie, R. L.

Michalsky, J. J.

J. J. Michalsky, L. C. Harrison, W. E. Berkheiser, “Cosine response characteristics of some radiometric and photometrics sensors,” Sol. Energy 54, 397–402 (1995).
[CrossRef]

Page, J. K.

J. K. Page, Prediction of Solar Radiation on Inclined Surfaces, Solar Energy R&D in the European Community, Series F: Solar Radiation Data (Reidel, Dordrecht, The Netherlands, 1986), Vol 3, p. 149.

Seckmeyer, G.

G. Seckmeyer, G. Bernhard, “Cosine error correction of spectral UV-irradiances,” in Atmospheric Radiation, K. H. Stamnes, ed., Proc. SPIE2049, 140–151 (1993).

Steven, M. D.

M. D. Steven, M. H. Unsworth, “The diffuse irradiance of slopes under cloudless skies,” Q. J. R. Meteorol. Soc. 105, 593–602 (1979).
[CrossRef]

Unsworth, M. H.

M. D. Steven, M. H. Unsworth, “The diffuse irradiance of slopes under cloudless skies,” Q. J. R. Meteorol. Soc. 105, 593–602 (1979).
[CrossRef]

Appl. Opt. (1)

Atmos. Environ. (1)

J. J. DeLuisi, J. M. Harris, “A determination of the absolute radiant energy of a Robertson–Berger meter sunburn unit,” Atmos. Environ. 17, 751–758 (1983).
[CrossRef]

J. Appl. Meteorol. (1)

J. C. Grenier, A. de La Casinière, T. Cabot, “Atmospheric turbidity analyzed by means of standardized Linke’s turbidity factor,” J. Appl. Meteorol. 34, 1449–1458 (1995).
[CrossRef]

Q. J. R. Meteorol. Soc. (1)

M. D. Steven, M. H. Unsworth, “The diffuse irradiance of slopes under cloudless skies,” Q. J. R. Meteorol. Soc. 105, 593–602 (1979).
[CrossRef]

Sol. Energy (3)

J. C. Grenier, A. de La Casinière, T. Cabot, “A spectral model of Linke’s turbidity factor and its experimental implications,” Sol. Energy 52, 303–313 (1994).
[CrossRef]

A. de La Casinière, T. Cabot, S. Benmansour, “Measuring spectral diffuse solar irradiance with non-cosine flat-plate diffusers,” Sol. Energy 54, 173–182 (1995).
[CrossRef]

J. J. Michalsky, L. C. Harrison, W. E. Berkheiser, “Cosine response characteristics of some radiometric and photometrics sensors,” Sol. Energy 54, 397–402 (1995).
[CrossRef]

Other (4)

J. K. Page, Prediction of Solar Radiation on Inclined Surfaces, Solar Energy R&D in the European Community, Series F: Solar Radiation Data (Reidel, Dordrecht, The Netherlands, 1986), Vol 3, p. 149.

M. Iqbal, An Introduction to Solar Radiation (Academic, Toronto, 1983), pp. 107–168.

K. Ya. Kondratyev, Radiation in the Atmosphere (Academic, New York, 1969), p. 82.

G. Seckmeyer, G. Bernhard, “Cosine error correction of spectral UV-irradiances,” in Atmospheric Radiation, K. H. Stamnes, ed., Proc. SPIE2049, 140–151 (1993).

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