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Geoscientific Instrumentation, Methods and Data Systems An interactive open-access journal of the European Geosciences Union
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Volume 1, issue 1
Geosci. Instrum. Method. Data Syst., 1, 43–51, 2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.
Geosci. Instrum. Method. Data Syst., 1, 43–51, 2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 03 May 2012

Research article | 03 May 2012

Results from the intercalibration of optical low light calibration sources 2011

B. U. E. Brändström1, C.-F. Enell2, O. Widell3, T. Hansson3, D. Whiter4, S. Mäkinen4, D. Mikhaylova1, K. Axelsson1, F. Sigernes5, N. Gulbrandsen6, N. M. Schlatter7, A. G. Gjendem8, L. Cai9, J. P. Reistad10, M. Daae8, T. D. Demissie8, Y. L. Andalsvik11, O. Roberts12, S. Poluyanov13, and S. Chernouss14 B. U. E. Brändström et al.
  • 1Swedish Institute of Space Physics, Kiruna, Sweden
  • 2Sodankylä Geophysical Observatory, University of Oulu, Sodankylä, Finland
  • 3SSC, ESRANGE, Kiruna, Sweden
  • 4Finnish Meteorological Institute, Helsinki, Finland
  • 5The Kjell Henriksen Observatory, UNIS, Longyearbyen, Norway
  • 6University of Tromsø, Tromsø, Norway
  • 7School of Electrical Engineering, Royal Institute of Technology, Stockholm, Sweden
  • 8Norwegian University of Science and Technology, Trondheim, Norway
  • 9Department of Physics, University of Oulu, Oulu, Finland
  • 10University of Bergen, Bergen, Norway
  • 11Department of Physics, University of Oslo, Oslo, Norway
  • 12Aberystwyth University, Aberystwyth, UK
  • 13Polar Geophysical Institute, Murmansk, Russia
  • 14Polar Geophysical Institute, Apatity, Russia

Abstract. Following the 38th Annual European Meeting on Atmospheric Studies by Optical Methods in Siuntio in Finland, an intercalibration workshop for optical low light calibration sources was held in Sodankylä, Finland. The main purpose of this workshop was to provide a comparable scale for absolute measurements of aurora and airglow. All sources brought to the intercalibration workshop were compared to the Fritz Peak reference source using the Lindau Calibration Photometer built by Wilhelm Barke and Hans Lauche in 1984. The results were compared to several earlier intercalibration workshops. It was found that most sources were fairly stable over time, with errors in the range of 5–25%. To further validate the results, two sources were also intercalibrated at UNIS, Longyearbyen, Svalbard. Preliminary analysis indicates agreement with the intercalibration in Sodankylä within about 15–25%.

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