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Early E, Thompson A, Johnson C, et al. The 1996 North American Interagency Intercomparison of Ultraviolet Monitoring Spectroradiometers. J Res Natl Inst Stand Technol. 1998;103(5):449-482doi: 10.6028/jres.103.028.
Early, E., Thompson, A., Johnson, C., DeLuisi, J., Disterhoft, P., Wardle, D., Wu, E., Mou, W., Ehramjian, J., Tusson, J., Mestechkina, T., Beaubian, M., Gibson, J., & Hayes, D. (1998). The 1996 North American Interagency Intercomparison of Ultraviolet Monitoring Spectroradiometers. Journal of research of the National Institute of Standards and Technology, 103(5), 449-482. https://doi.org/10.6028/jres.103.028
Early, Edward, et al. "The 1996 North American Interagency Intercomparison of Ultraviolet Monitoring Spectroradiometers." Journal of research of the National Institute of Standards and Technology vol. 103,5 (1998): 449-482. doi: https://doi.org/10.6028/jres.103.028
Early E, Thompson A, Johnson C, DeLuisi J, Disterhoft P, Wardle D, Wu E, Mou W, Ehramjian J, Tusson J, Mestechkina T, Beaubian M, Gibson J, Hayes D. The 1996 North American Interagency Intercomparison of Ultraviolet Monitoring Spectroradiometers. J Res Natl Inst Stand Technol. 1998 Sep-Oct;103(5):449-482. doi: 10.6028/jres.103.028. Epub 1998 Oct 01. PMID: 28009358; PMCID: PMC4889314.
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J Res Natl Inst Stand Technol. 1998 Sep-Oct;103(5):449-482. doi: 10.6028/jres.103.028. Epub 1998 Oct 01.

The 1996 North American Interagency Intercomparison of Ultraviolet Monitoring Spectroradiometers.

Journal of research of the National Institute of Standards and Technology

Edward Early, Ambler Thompson, Carol Johnson, John DeLuisi, Patrick Disterhoft, David Wardle, Edmund Wu, Wanfeng Mou, James Ehramjian, John Tusson, Tanya Mestechkina, Mark Beaubian, James Gibson, Douglass Hayes

Affiliations

  1. National Institute of Standards and Technology, Gaithersburg, MD 20899-0001 USA.
  2. National Oceanic and Atmospheric Administration, R/E/ARx1, 325 Broadway, Boulder, CO 80303 USA.
  3. Atmospheric Environment Service, Environment Canada, 4905 Dufferin Street, Toronto, ON M3H 5T4, Canada.
  4. Dept. of Physics and Astronomy, University of Georgia, Athens, GA 30602 USA.
  5. Biospherical Instruments Inc., 5340 Riley Street, San Diego, CA 92110-2621 USA.
  6. Yankee Environmental Systems, Inc., Airport Industrial Park Turner Falls, MA 01376 USA.
  7. USDA UV-B Radiation Monitoring Program, Natural Resource Ecology Laboratory, Colorado State University, Fort Collins, CO 880523, USA.
  8. Smithsonian Environmental Research Center of the Smithsonian Institution, P.O. Box 28, Edgewater, MD 21037 USA.

PMID: 28009358 PMCID: PMC4889314 DOI: 10.6028/jres.103.028

Abstract

Concern over stratospheric ozone depletion has prompted several government agencies in North America to establish networks of spectroradiometers for monitoring solar ultraviolet irradiance at the surface of the Earth. To assess the ability of spectroradiometers to accurately measure solar ultraviolet irradiance, and to compare the results between instruments of different monitoring networks, the third North American Interagency Intercomparison of Ultraviolet Monitoring Spectroradiometers was held June 17-25, 1996 at Table Mountain outside Boulder, Colorado, USA. This Intercomparison was coordinated by the National Institute of Standards and Technology (NIST) and the National Oceanic and Atmospheric Administration (NOAA). Participating agencies were the Environmental Protection Agency; the National Science Foundation; the Smithsonian Environmental Research Center; the Department of Agriculture; and the Atmospheric Environment Service, Canada. The spectral irradiances of participants' calibrated standard lamps were measured at NIST prior to the Intercomparison. The spectral irradiance scales used by the participants agreed with the NIST scale within the combined uncertainties, and for all lamps the spectral irradiance in the horizontal position was lower than that in the vertical position. Instruments were characterized for wavelength uncertainty, bandwidth, stray-light rejection, and spectral irradiance responsivity, the latter with NIST standard lamps operating in specially designed field calibration units. The spectral irradiance responsivity demonstrated instabilities for some instruments. Synchronized spectral scans of the solar irradiance were performed over several days. Using the spectral irradiance responsivities determined with the NIST standard lamps, the measured solar irradiances had some unexplained systematic differences between instruments.

Keywords: environmental monitoring; intercomparison; solar ultraviolet; spectroradiometers

References

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