• Austin, J., Barwell B. R. , Cox S. J. , Hughes P. A. , Knight J. R. , Ross G. , Sinclair P. , and Webb A. R. , 1994: The diagnosis and forecast of clear sky ultraviolet at the earth’s surface. Meteor. Appl., 1, 321336, doi:10.1002/met.5060010403.

    • Search Google Scholar
    • Export Citation
  • Burrows, W. R., Vallée M. , Wardle D. I. , Kerr J. B. , Wilson L. J. , and Tarasick D. , 1994: The Canadian operational procedure for forecasting total ozone and UV radiation. Meteor. Appl., 1, 247265, doi:10.1002/met.5060010307.

    • Search Google Scholar
    • Export Citation
  • Chadyšiene, R., and Girgždys A. , 2008: Ultraviolet radiation albedo of natural surfaces. J. Environ. Eng. Landscape Manage., 16, 8388, doi:10.3846/1648-6897.2008.16.83-88.

    • Search Google Scholar
    • Export Citation
  • COESA, 1976: U.S. Standard Atmosphere, 1976. NOAA, 227 pp.

  • Dickerson, R. R., Kondragunta S. , Stenchikov G. , Civerolo K. L. , Doddridge B. G. , and Holben B. N. , 1997: The impact of aerosols on solar ultraviolet radiation and photochemical smog. Science, 278, 827830, doi:10.1126/science.278.5339.827.

    • Search Google Scholar
    • Export Citation
  • D’Orazio, J., Jarrett S. , Amaro-Ortiz A. , and Scott T. , 2013: UV radiation and the skin. Int. J. Mol. Sci., 14, 12 22212 248, doi:10.3390/ijms140612222.

    • Search Google Scholar
    • Export Citation
  • Elterman, L., 1968: UV, visible, and IR attenuation for altitudes to 50 km. AFCRL-68-0153, Environmental Research Paper 285, Air Force Cambridge Research Laboratories, 56 pp.

  • Feister, U., and Grewe R. , 1995: Spectral albedo measurements in the UV and visible region over different types of surfaces. Photochem. Photobiol., 62, 736744, doi:10.1111/j.1751-1097.1995.tb08723.x.

    • Search Google Scholar
    • Export Citation
  • Levelt, P. F., Hilsenrath E. , Lepppelmeier G. W. , van den Oord G. H. J. , Bhartia P. K. , Taminnen J. , de Haan J. F. , and Veefkind J. P. , 2006: Science objectives of the Ozone Monitoring Instrument. IEEE Trans. Geosci. Remote Sens., 44, 11991208, doi:10.1109/TGRS.2006.872336.

    • Search Google Scholar
    • Export Citation
  • Li, C., Lau A. K.-H. , Mao J. , and Chu D. A. , 2005: Retrieval, validation, and application of the 1-km aerosol optical depth from MODIS measurements over Hong Kong. IEEE Trans. Geosci. Remote Sens., 43, 26502658, doi:10.1109/TGRS.2005.856627.

    • Search Google Scholar
    • Export Citation
  • Madronich, S., 1993: The atmosphere and UV-B radiation at ground level. Environmental UV Photobiology, A. R. Young et al., Eds., Plenum Press, 1–39.

  • McKinlay, A. F., and Diffey B. L. , 1987: A reference action spectrum for ultraviolet induced erythemal in human skin. Human Exposure to Ultraviolet Radiation: Risks and Regulations, W. R. Passchler and B. F. M. Bosnajakovic, Eds., Elsevier, 83–87.

  • McPeters, R., and Coauthors, 2008: Validation of the Aura Ozone Monitoring Instrument total column ozone product. J. Geophys. Res., 113, D15S14, doi:10.1029/2007JD008802.

    • Search Google Scholar
    • Export Citation
  • Michalsky, J. J., and Kiedron P. W. , 2008: Comparison of UV-RSS spectral measurements and TUV model runs for clear skies for the May 2003 ARM aerosol intensive observation period. Atmos. Chem. Phys., 8, 18131821, doi:10.5194/acp-8-1813-2008.

    • Search Google Scholar
    • Export Citation
  • Piacentini, R. D., Alfano O. M. , Albizzati E. D. , Luccini E. A. , and Herman J. R. , 2002: Solar ultraviolet irradiance for clear sky days incident at Rosario, Argentina: Measurements and model calculations. J. Geophys. Res., 107, doi:10.1029/2001JD000586.

    • Search Google Scholar
    • Export Citation
  • Singh, S., and Singh R. , 2004: High-altitude clear-sky direct solar ultraviolet irradiance at Leh and Hanle in the western Himalayas: Observations and model calculations. J. Geophys. Res., 109, D19201, doi:10.1029/2004JD004854.

    • Search Google Scholar
    • Export Citation
  • Srivastava, M. K., Singh S. , Saha A. , Dumka U. C. , Hegde P. , Singh R. , and Pant P. , 2006: Direct solar ultraviolet irradiance over Nainital, India, in the central Himalayas for clear-sky day conditions during December 2004. J. Geophys. Res., 111, D08201, doi:10.1029/2005JD006141.

    • Search Google Scholar
    • Export Citation
  • Tan, H., Deng X. , Wu D. , Jiang C. , and Li F. , 2008: The performance of TUVR ultraviolet radiometer (in Chinese). J. Appl. Meteor. Sci., 19, 367371.

    • Search Google Scholar
    • Export Citation
  • Tan, H., Wu D. , Deng X. , Bi X. , Li F. , and Deng T. , 2009: Observation of aerosol optical depth over the Pearl River delta (in Chinese). Acta Sci. Circumstaniae, 29, 11461155.

    • Search Google Scholar
    • Export Citation
  • WMO, 2008: Guide to Meteorological Instruments and Methods Observations. 7th ed. WMO-8, 681 pp.

  • Xia, D., Tan H. , Deng X. , Wan Q. , Yan J. , and Mo W. , 2013: Research on the method of retrieving aerosol single scattering albedo by using the ultra-violet and visible radiation (in Chinese). China Environ. Sci., 33, 402408.

    • Search Google Scholar
    • Export Citation
All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 8 8 8
PDF Downloads 3 3 3

Correction of UVS-AB-T UV Radiometers Using a Radiative Transfer Model

View More View Less
  • 1 Dongguan Meteorological Bureau, Dongguan, China
  • | 2 Institute of Tropical and Marine Meteorology, China Meteorological Administration, Guangzhou, China
  • | 3 Dongguan Meteorological Bureau, Dongguan, China
  • | 4 Key Laboratory of Meteorological Disaster, Ministry of Education, Nanjing University of Information Science and Technology, Nanjing, China, and Department of Atmospheric, Oceanic and Earth Sciences, George Mason University, Fairfax, Virginia
Restricted access

Abstract

Observation of UV radiation is of major importance to human health and to the calculation of photochemical reaction rates. However, the sensitivity of UV radiometers decays because of equipment aging. A correction method is therefore proposed by using a decrement formula that is approximately a quadratic function of time and is obtained by fitting the clear-sky observation data from an aged UVS-AB-T UV radiometer with the data simulated by the Tropospheric Ultraviolet and Visible (TUV) radiative transfer model. The corrected data from the older radiometer are verified by the data from another newer radiometer on selected clear-sky days. The results show a high correlation and a low bias between the radiometers, and the mean of the corrected data from the older radiometer is 94.5% of that from the newer radiometer. After a long time of use, the decrement of the observation data would increase dramatically and errors of the data after correction would still be significant. In Dongguan, China, a recommendation is made that a UV radiometer should not be used for more than 5 years when the decrement rate reaches 50%.

Corresponding author address: Si Gao, Department of Atmospheric, Oceanic and Earth Sciences, George Mason University, 4400 University Drive, Fairfax, VA 22030. E-mail: sgao2@gmu.edu; Dong Xia: 584131440@163.com

Abstract

Observation of UV radiation is of major importance to human health and to the calculation of photochemical reaction rates. However, the sensitivity of UV radiometers decays because of equipment aging. A correction method is therefore proposed by using a decrement formula that is approximately a quadratic function of time and is obtained by fitting the clear-sky observation data from an aged UVS-AB-T UV radiometer with the data simulated by the Tropospheric Ultraviolet and Visible (TUV) radiative transfer model. The corrected data from the older radiometer are verified by the data from another newer radiometer on selected clear-sky days. The results show a high correlation and a low bias between the radiometers, and the mean of the corrected data from the older radiometer is 94.5% of that from the newer radiometer. After a long time of use, the decrement of the observation data would increase dramatically and errors of the data after correction would still be significant. In Dongguan, China, a recommendation is made that a UV radiometer should not be used for more than 5 years when the decrement rate reaches 50%.

Corresponding author address: Si Gao, Department of Atmospheric, Oceanic and Earth Sciences, George Mason University, 4400 University Drive, Fairfax, VA 22030. E-mail: sgao2@gmu.edu; Dong Xia: 584131440@163.com
Save