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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 5, issue 2
Geosci. Instrum. Method. Data Syst., 5, 333–345, 2016
https://doi.org/10.5194/gi-5-333-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: Multi-disciplinary research and integrated monitoring at the...

Geosci. Instrum. Method. Data Syst., 5, 333–345, 2016
https://doi.org/10.5194/gi-5-333-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 01 Aug 2016

Research article | 01 Aug 2016

European UV DataBase (EUVDB) as a repository and quality analyser for solar spectral UV irradiance monitored in Sodankylä

Anu Heikkilä1, Jussi Kaurola2, Kaisa Lakkala1,3, Juha Matti Karhu4, Esko Kyrö4, Tapani Koskela5, Ola Engelsen6, Harry Slaper7, and Gunther Seckmeyer8 Anu Heikkilä et al.
  • 1Finnish Meteorological Institute, R&D/Climate Research, Helsinki, Finland
  • 2Finnish Meteorological Institute, Weather and Safety, Helsinki, Finland
  • 3Finnish Meteorological Institute, R&D/Arctic Research Center, Rovaniemi, Finland
  • 4Finnish Meteorological Institute, R&D/Arctic Research Center, Sodankylä, Finland
  • 5Independent researcher, Helsinki, Finland
  • 6Norwegian Institute for Air Research, Tromsø, Norway
  • 7National Institute for Public Health and the Environment, Utrecht, the Netherlands
  • 8Leibnitz Universität Hannover, Institute of Meteorology and Climatology, Hanover, Germany

Abstract. Databases gathering atmospheric data have great potential not only as data storages but also in serving as platforms for coherent quality assurance (QA). We report on the flagging system and QA tools designed for and implemented in the European UV DataBase (EUVDB; http://uv.fmi.fi/uvdb/) for measured data on solar spectral UV irradiance. We confine the study on the data measured by Brewer #037 MkII spectroradiometer in Sodankylä (67.37° N, 26.63° E) in 1990–2014. The quality indicators associated with the UV irradiance spectra uploaded into the database are retrieved from the database and subjected to a statistical analysis. The study demonstrates the performance of the QA tools of the EUVDB. In addition, it yields an overall view of the availability and quality of the solar UV spectra recorded in Sodankylä over a quarter of a century. Over 90 % of the four main quality indicators are flagged as GREEN, indicating the highest achievable quality. For the BLACK flags, denoting data not meeting the pre-defined requirements, the percentages for all the indicators remain below 0.12 %.

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Solar spectral UV irradiance data measured by the Brewer #037 spectroradiometer in Sodankylä, Finland, in 1990–2014 were examined for their quality flags given by the quality assurance (QA) tools of the European UV DataBase (EUVDB). Statistical analysis on the flags was performed, and five cases were investigated in detail. The results can be used in further development of the quality control/QA tools and selection of cases of exceptional atmospheric conditions for process studies.
Solar spectral UV irradiance data measured by the Brewer #037 spectroradiometer in Sodankylä,...
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