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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 35, Iss. 30 — Oct. 20, 1996
  • pp: 6084–6089

Estimation of ozone with total ozone portable spectroradiometer instruments. II. Practical operation and comparisons

Gordon J. Labow, Lawrence E. Flynn, Michael A. Rawlins, Robert A. Beach, C. A. Simmons, and C. M. Schubert  »View Author Affiliations


Applied Optics, Vol. 35, Issue 30, pp. 6084-6089 (1996)
http://dx.doi.org/10.1364/AO.35.006084


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Abstract

We used a microcomputer-controlled total ozone portable spectroradiometer instrument #21 (MTOPS21) to measure solar radiation at 298, 304 and 310 nm in Greenbelt, Md., during 1995. One day’s ozone measurements from a Brewer instrument (B105) were used to calibrate the 304- and 310-nm channel ratios to a theoretical model. Total ozone estimates were then determined for the entire MTOPS21 data set. Differences between individual B105 and MTOPS21 ozone estimates show a 1% drop as solar zenith angles increase and depend on atmospheric attenuation and SO2 variation at the ±2% level. Daily average values agree well (<0.5% average offset, 2% standard deviation).

© 1996 Optical Society of America

History
Original Manuscript: January 2, 1996
Revised Manuscript: April 4, 1996
Published: October 20, 1996

Citation
Gordon J. Labow, Lawrence E. Flynn, Michael A. Rawlins, Robert A. Beach, C. A. Simmons, and C. M. Schubert, "Estimation of ozone with total ozone portable spectroradiometer instruments. II. Practical operation and comparisons," Appl. Opt. 35, 6084-6089 (1996)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-35-30-6084


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References

  1. World Meteorological Organisation, Scientific Assessment of Ozone Depletion: 1994, Global Ozone Research and Monitoring Project, Rep. No. 37 (World Meteorological Organisation, Geneva, 1995), and references therein.
  2. F. M. Mims, “How to measure the ozone layer,” Sci. Probe 2, 45–51 (1992).
  3. L. E. Flynn, G. J. Labow, R. A. Beach, M. A. Rawlins, D. E. Flittner, “Estimation of ozone with total ozone portable spectroradiometer instruments. I. Theoretical model and error analysis,” Appl. Opt. 35, 6076–6083 (1996). [CrossRef] [PubMed]
  4. J. B. Kerr, C. T. McElroy, W. F. J. Evans, “The automated Brewer spectrophotometer for measurement of SO2, O3 and aerosols,” in the Proceedings of the WMO/AMS/CMOS Symposium on Meteorological Observations and Instrumentation, Toronto, Ont. (American Meteorological Society, Boston, Mass., 1983) pp. 470–472.
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  6. W. S. Cleveland, S. J. Devlin, E. Grosse, “Regression by local fitting: methods, properties, and computational algorithms,” J. Econometrics 37, 87–114 (1988). [CrossRef]
  7. J. B. Kerr, I. A. Ashbridge, W. J. F. Evans, “Intercomparisons of total ozone measured by the Brewer and Dobson spectrophotometers at Toronto,” J. Geophys. Res. 93(D9), 11129–11140 (1988). [CrossRef]
  8. M. Morys, Solar Light Company, Philadelphia, Pa. (personal communication, 1996).

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