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Intercomparison of Erythemal Broadband Radiometers Calibrated by Seven Uv Calibration Facilities in Europe and the USA : Volume 8, Issue 1 (06/02/2008)

By Hülsen, G.

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Book Id: WPLBN0003979403
Format Type: PDF Article :
File Size: Pages 25
Reproduction Date: 2015

Title: Intercomparison of Erythemal Broadband Radiometers Calibrated by Seven Uv Calibration Facilities in Europe and the USA : Volume 8, Issue 1 (06/02/2008)  
Author: Hülsen, G.
Volume: Vol. 8, Issue 1
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2008
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Blumthaler, M., Hülsen, G., Gröbner, J., Lantz, K. O., Bais, A., Schreder, J.,...Johnsen, B. (2008). Intercomparison of Erythemal Broadband Radiometers Calibrated by Seven Uv Calibration Facilities in Europe and the USA : Volume 8, Issue 1 (06/02/2008). Retrieved from http://www.ebooklibrary.org/


Description
Description: Physikalisch-Meteorologisches Observatorium Davos / World Radiation Center, Dorfstrasse 30, 7278 Davos Dorf, Switzerland. A bi-lateral intercomparison of erythemal broadband radiometers was performed between seven UV calibration facilities. The owners calibrations were compared relative to the characterisation and calibration performed at PMOD/WRC in Davos, Switzerland. The calibration consisted in the determination of the spectral and angular response of the radiometer, followed by an absolute calibration performed outdoors relative to a spectroradiometer which provided the absolute reference.

The characterization of the detectors in the respective laboratories are in good agreement: The determination of the angular responses have deviations below ±4% and the spectral responses agree within ±20%. A blind intercomparison of the erythemally weighted irradiances derived by the respective institutes and PMOD/WRC showed consistent measurements to within ±2% for the majority of institutes. One institute showed slightly larger deviation of 10%. The differences found between the different instrument calibrations are all within the combined uncertainty of the calibration.


Summary
Intercomparison of erythemal broadband radiometers calibrated by seven UV calibration facilities in Europe and the USA

Excerpt
Bais, A., Kazadzis, S., Balis, D., Zerefos, C., and Blumthaler, M.: Correcting global solar ultraviolet spectra recorded by a Brewer spectroradiometer for its angular response error, Appl. Optics, 37, 6339–6344, 1998.; Gröbner, J. and Sperfeld, P.: Direct traceability of the portable QASUME irradiance scale to the primary irradiance standard of the PTB, Metrologia, 42, 134–139, 2005.; Gröbner, J., Blumthaler, M., and Ambach, W.: Experimental investigation of spectral glabal irradiance measurement errors due to a non ideal cosine response, Geophys. Res. Lett., 23, 2493–2496, 1996.; Gröbner, J., Kazadzis, S., Schreder, J., Bais, A F., Blumthaler, M., Görts, P., Koskela, T., Seckmeyer, G., Webb, A R., and Wuttkeand, S.: Quality assurance of spectral ultraviolet measurements in Europe through the development of a transportable unit, Doc. EUR 20991 EN (European Commission, 2003), 2003.; Gröbner, J., Schreder, J., Kazadzis, S., Bais, A F., Blumthaler, M., Görts, P., Tax, R., Koskela, T., Seckmeyer, G., Webb, A R., and Rembges, D.: Traveling reference spectroradiometer for routine quality assurance of spectral solar ultraviolet irradiance measurements, Appl. Optics, 44, 5321–5331, 2005.; Gröbner, J., Blumthaler, M., Kazadzis, S., Bais, A., Webb, A., Schreder, J., Seckmeyer, G., and Rembges, D.: Quality assurance of spectral solar UV measurements: results from 25 UV monitoring sites in Europe, 2002 to 2004, Metrologia, 43, 66–71, 2006.; Gröbner, J., Hülsen, G., Vuilleumier, G L., Blumthaler, M., Vilaplana, J M., Walker, D., and Gil, J E.: Report of the PMOD/WRC-COST Calibration and Intercomparison of Erythemal Radiometers, available at: http://i115srv.vu-wien.ac.at/uv/COST726/COST726_Dateien/Results/PMOD_WRC_COST726_campaign_2006_R.pdf, 2007.; Hülsen, G. and Gröbner, J.: Characterization and calibration of ultraviolet broadband radiometers measuring erythemally weighted irradiance, Appl. Optics, 46, 5877–5886, 2007.; ISO: Erythema reference action spectrum and standard erythema dose, International Organization for Standardization, ISO/CIE 17166:1999, 1999.; Lantz, K., Disterhoft, P., DeLuisi, J., Early, E., Thompson, A., Slusser, J., and Bigelow, D.: A Methodology for Deriving Clear-Sky Erythema Calibration Factors for UVB Broadband Radiometers of the CUCF, J. Atmos. Ocean. Tech., 16, 1736–1752, 1999.; Leszczynski, K., Jokela, K., Ylianttila, L., Visuri, R., and Blumthaler, M.: Erythemally weighted radiometers in solar UV monitoring: Results from the WMO/STUK Intercomparison, Photochem. Photobiol., 67, 212–221, 1998.; Mayer, B. and Kylling, A.: The libRadtran software package for radiative transfer calculations – description and examples of use, Atmos. Chem. and Phys., 5, 1855–1877, available at: http://www.libradtran.org, 2005.; McKinlay, A. and Diffey, B.: A reference action spectrum for ultraviolet induced erythema in human skin, CIE J., 6, 17–22, 1987.; Müller, G., Artz, R., Baltensperger, U., Carmichael, G., Dlugokencky, E., Penkett, S., Stähelin, J., Webb, A., Hov, O., Klausen, J., Sturges, B., Barrie, L., Braathen, G., Jalkanen, L., and Nickovic, S.: WMO Global Atmosphere Watch (GAW) Strategic Plan: 2008–2015, World Meteorological Organization WMO/GAW Rep., WMO TD NO. 1384, available at: http://www.wmo.int/pages/prog/arep/gaw/documents/gaw172_sp_15may.pdf, 2007.; Schreder, J., Gröbner, J., Los, A., and Blumthaler, M.: Intercomparison of monochromatic source facilities for the determination of the relative spectral response of emal broadband filter radiometers, Opt. Lett., 29, 1455–1457, 2004.; Webb, A., Gröbner, J., and Blumthaler, M.: A Practical Guide to Operating Broadband Instruments Measuring Erythemally Weighted Irradiance, available at: http://i115srv.vu-wien.ac.at/uv/COST726/COST726_Dateien/Results/GuideBB_COST726.pdf, EUR 22595, ISBN 92-898-0032-1, 2006.

 

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