OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 38, Iss. 30 — Oct. 20, 1999
  • pp: 6247–6252

All-weather ultraviolet solar spectra retrieved at a 0.5-Hz sampling rate

Trond Morten Thorseth and Berit Kjeldstad  »View Author Affiliations


Applied Optics, Vol. 38, Issue 30, pp. 6247-6252 (1999)
http://dx.doi.org/10.1364/AO.38.006247


View Full Text Article

Enhanced HTML    Acrobat PDF (152 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

A measurement scheme and an algorithm have been developed to retrieve global irradiance ultraviolet solar spectra (290–400 nm) at a sampling rate of 0.5 Hz. The algorithm combines spectral irradiance measurements performed with a slow (a few minutes) scanning spectroradiometer (Optronic Model OL752) and a moderate bandwidth multichannel radiometer (Biospherical ground-based ultraviolet radiometer Model 541). The filter radiometer instrument allows for continuous observations of global UV radiation at five channels (approximately 10-nm bandwidth), performed simultaneously with spectral measurements. Information about changing cloud conditions during a spectral scan was retrieved from filter measurements and applied to spectral data, hence estimated spectra without cloud variations could be constructed. The quality of the estimated spectra depends on data quality from both instruments. The method works well in all kinds of weather conditions, as long as the Sun is above the horizon and none of the instruments are hampered by measurement errors.

© 1999 Optical Society of America

OCIS Codes
(000.2170) General : Equipment and techniques
(010.1320) Atmospheric and oceanic optics : Atmospheric transmittance
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(300.6540) Spectroscopy : Spectroscopy, ultraviolet

History
Original Manuscript: March 10, 1999
Revised Manuscript: July 6, 1999
Published: October 20, 1999

Citation
Trond Morten Thorseth and Berit Kjeldstad, "All-weather ultraviolet solar spectra retrieved at a 0.5-Hz sampling rate," Appl. Opt. 38, 6247-6252 (1999)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-38-30-6247


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. R. Stolarski, R. D. Bojkov, L. Bishop, C. Zerefos, J. Staehelin, J. Zawodny, “Measured trends in stratospheric ozone,” Science 256, 342–349 (1992). [CrossRef] [PubMed]
  2. R. D. Bojkov, L. Bishop, V. E. Fioletov, “Total ozone trends from quality-controlled ground-based data (1964–1994),” J. Geophys. Res. 100, 25,867–25,876 (1995). [CrossRef]
  3. J. G. Estupiñan, S. Raman, G. H. Crescenti, J. J. Streicher, W. F. Barnhard, “Effects of clouds and haze on UV-B radiation,” J. Geophys. Res. 101, 16,807–16,816 (1996). [CrossRef]
  4. W. A. P. Josefsson, “Monitoring ultraviolet radiation,” in Environmental UV Photobiology, A. R. Young, L. O. Bjrn, J. Moan, W. Nultsch, eds. (Plenum, New York, 1993), pp. 73–88. [CrossRef]
  5. B. Kjeldstad, B. Johnsen, T. Koskela, “The Nordic intercomparison of ultraviolet and total ozone instruments at Izaña, October 1996,” (Finnish Metereological Institute, Helsinki, Finland, 1997).
  6. T. M. Thorseth, B. Kjeldstad, C. Jensen, “Effect of temperature on biological dose rates derived from spectral solar UV irradiance measurements,” in Proceedings, First Internet Conference on Photochemistry and Photobiology. 17 November–19 December1997, P. Heelis, ed. http://www.photobiology.com/v1/default.htm ; contributed paper C35.
  7. C. R. Booth, T. Mestechkina, J. H. Morrow, “Errors in the reporting of solar spectral irradiance using moderate bandwidth radiometers: an experimental investigation,” in Ocean Optics XII, J. S. Jaffe, ed., Proc. SPIE2258, 654–663 (1994). [CrossRef]
  8. T. M. Thorseth, B. Kjeldstad, B. Johnsen, “Comparison of solar ultraviolet measurements performed with spectroradiometer and moderate bandwidth multichannel radiometer for different cloud conditions,” J. Geophys. Res. (to be published).
  9. J. E. Frederick, P. F. Soulen, S. D. Diaz, I. Smolskaia, C. R. Booth, T. Lucas, D. Neuschuler, “Solar ultraviolet irradiance observed from Southern Argentina: September 1990 to March 1991,” J. Geophys. Res. 98(D5), 8891–8897 (1993). [CrossRef]
  10. A. R. Webb, “Solar ultraviolet radiation in southeast England: the case for spectral measurements,” Photochem. Photobiol. 54, 789–794 (1991). [CrossRef]
  11. Y. X. Hu, K. Stamnes, “An accurate parameterization of the radiative properties of water clouds suitable for use in climate models,” J. Clim. 6, 728–742 (1993). [CrossRef]
  12. G. Seckmeyer, R. Erb, A. Albold, “Transmittance of clouds are wavelength dependent in the UV-range,” Geophys. Res. Lett. 23, 2753–2755 (1996). [CrossRef]
  13. B. Mayer, A. Kylling, S. Madronich, G. Seckmeyer, “Enhanced absorption of UV radiation due to multiple scattering in clouds: experimental evidence and theoretical explanation,” J. Geophys. Res. 103(D23), 31,241–31,254 (1998). [CrossRef]
  14. A. Kylling, A. Albold, G. Seckmeyer, “Transmittance of a cloud is wavelength-dependent in the UV-range: physical interpretation,” Geophys. Res. Lett. 24, 397–400 (1997). [CrossRef]
  15. A. Dahlback, “Measurements of biologically effective UV doses, total ozone abundances, and cloud effects with multichannel, moderate bandwidth filter instruments,” Appl. Opt. 35, 6514–6521 (1996). [CrossRef] [PubMed]
  16. Q. Min, L. C. Harrison, “Synthetic spectra for terrestrial ultraviolet from discrete measurements,” J. Geophys. Res. 103, 17,033–17,039 (1998). [CrossRef]
  17. G. Seckmeyer, B. Mayer, G. Bernhard, “The 1997 status of solar UV spectroradiometry in Germany: results from the national intercomparison of UV spectroradiometers Garmisch-Partenkirchen, Germany,” (Shaker, Aachen, Germany, 1998).

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.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited