OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 27 — Sep. 20, 1998
  • pp: 6339–6344

Correcting global solar ultraviolet spectra recorded by a Brewer spectroradiometer for its angular response error

Alkiviadis F. Bais, Stelios Kazadzis, Dimitrios Balis, Christos S. Zerefos, and Mario Blumthaler  »View Author Affiliations


Applied Optics, Vol. 37, Issue 27, pp. 6339-6344 (1998)
http://dx.doi.org/10.1364/AO.37.006339


View Full Text Article

Enhanced HTML    Acrobat PDF (162 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We present a methodology for correcting the global UV spectral measurements of a Brewer MKIII spectroradiometer for the error introduced by the deviation of the angular response of the instrument from the ideal response. This methodology is applicable also to other Brewer spectroradiometers that are currently in operation. The various stages of the methodology are described in detail, together with the uncertainties involved in each stage. Finally global spectral UV measurements with and without the application of the correction are compared with collocated measurements of another spectroradiometer and with model calculations, demonstrating the efficiency of the method. Depending on wavelength and on the aerosol loading, the cosine correction factors range from 2% to 7%. The uncertainties involved in the calculation of these correction factors were found to be relatively small, ranging from ∼0.2% to ∼2%.

© 1998 Optical Society of America

OCIS Codes
(010.1290) Atmospheric and oceanic optics : Atmospheric optics
(120.5630) Instrumentation, measurement, and metrology : Radiometry
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(260.7190) Physical optics : Ultraviolet
(290.0290) Scattering : Scattering

History
Original Manuscript: December 22, 1997
Revised Manuscript: May 5, 1998
Published: September 20, 1998

Citation
Alkiviadis F. Bais, Stelios Kazadzis, Dimitrios Balis, Christos S. Zerefos, and Mario Blumthaler, "Correcting global solar ultraviolet spectra recorded by a Brewer spectroradiometer for its angular response error," Appl. Opt. 37, 6339-6344 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-27-6339


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. G. Seckmeyer, G. Bernhard, “Cosine error correction of spectral UV irradiances,” in Atmospheric Radiation, K. H. Stamnes, ed., Proc. SPIE2049, 140–151 (1993). [CrossRef]
  2. U. Feister, R. Grewe, K. Gericke, “A method for correction of cosine errors in measurements of spectral UV irradiance,” Solar Energy 60, 313–332 (1997). [CrossRef]
  3. A. F. Bais, “Spectrometers: operational errors and uncertainties,” in Solar Ultraviolet Radiation Modeling, Measurements and Effects, C. S. Zerefos, A. F. Bais, eds., Vol. 52 of NATO ASI Series I, Global Environmental Change (Springer-Verlag, Berlin, 1997), pp. 163–173.
  4. M. Blumthaler, A. F. Bais, “Cosine corrections of global sky measurements,” in The Nordic Intercomparison of Ultraviolet and Total Ozone Instruments at Izana October 1996. Final Report, B. Kjeldstad, B. Johnsen, T. Koskela, eds. (Finnish Meteorological Institute, Helsinki, 1997), pp. 161–172.
  5. K. Leszczynski, “Material and methods,” in The Nordic Intercomparison of Ultraviolet and Total Ozone Instruments at Izana from 24 October to 5 November 1993. Final Report, T. Koskela, ed. (Finnish Meteorological Institute, Helsinki, 1994), pp. 27–49.
  6. B. G. Gardiner, “Spectroradiometer calibration methods and techniques,” in Solar Ultraviolet Radiation Modeling, Measurements and Effects, C. S. Zerefos, A. F. Bais, eds., Vol. 52 of NATO ASI Series I, Global Environmental Change (Springer-Verlag, Berlin, 1997), pp. 119–132. [CrossRef]
  7. M. Blumthaler, J. Groebner, M. Huber, W. Ambach, “Measuring spectral and spatial variations of UVB and UVA sky radiance,” Geophys. Res. Lett. 23, 547–550 (1996). [CrossRef]
  8. K. H. Stamnes, S. C. Tsay, W. Wiscombe, K. Jayaweera, “Numerically stable algorithm for discrete-ordinate-method radiative transfer in multiple scattering and emitting layered media,” Appl. Opt. 27, 2502–2509 (1988). [CrossRef] [PubMed]
  9. A. F. Bais, “Absolute spectral measurements of direct solar ultraviolet irradiance with a Brewer spectrophotometer,” Appl. Opt. 21, 5199–5204 (1997). [CrossRef]
  10. S. Madronich, “UV radiation in the natural and perturbed atmosphere,” in Environmental Effects of Ultraviolet Radiation, M. Tevini, ed. (Lewis, Boca Raton, Fla., 1993), pp. 17–69.
  11. D. S. Balis, A. F. Bais, A. Papayannis, F. Marenco, V. Santacesaria, C. S. Zerefos, “Comparison of model calculations with spectral solar UV measurements,” in Atmospheric Ozone, Proceedings of the Quadrennial Ozone Symposium, R. D. Bojkov, G. Visconti, eds. (Edigralital F.P.A., Italy, 1997), pp. 837–840.
  12. J. Groebner, M. Blumthaler, W. Ambach, “Experimental investigation of spectral global irradiance measurement errors due to a non ideal cosine response,” Geophys. Res. Lett. 23, 2493–2496 (1996). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

Figures

Fig. 1 Fig. 2 Fig. 3
 
Fig. 4 Fig. 5
 

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited