Articles | Volume 5, issue 2
https://doi.org/10.5194/gi-5-531-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/gi-5-531-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
22 Nov 2016
Research article |
| 22 Nov 2016
In search of traceability: two decades of calibrated Brewer UV measurements in Sodankylä and Jokioinen
Anu Heikkilä
CORRESPONDING AUTHOR
Finnish Meteorological Institute, Climate Research, P.O. Box 503,
00101 Helsinki, Finland
Jakke Sakari Mäkelä
Finnish Meteorological Institute, Climate Research, P.O. Box 503,
00101 Helsinki, Finland
currently at: University of Jyväskylä, Jyväskylä, Finland
Kaisa Lakkala
Finnish Meteorological Institute, Arctic Research Center,
Tähteläntie 62, 99600 Sodankylä, Finland
Outi Meinander
Finnish Meteorological Institute, Climate Research, P.O. Box 503,
00101 Helsinki, Finland
Jussi Kaurola
Finnish Meteorological Institute, Climate Research, P.O. Box 503,
00101 Helsinki, Finland
Tapani Koskela
independent researcher: Helsinki, Finland
Juha Matti Karhu
Finnish Meteorological Institute, Arctic Research Center,
Tähteläntie 62, 99600 Sodankylä, Finland
Tomi Karppinen
Finnish Meteorological Institute, Arctic Research Center,
Tähteläntie 62, 99600 Sodankylä, Finland
Esko Kyrö
Finnish Meteorological Institute, Arctic Research Center,
Tähteläntie 62, 99600 Sodankylä, Finland
Gerrit de Leeuw
Finnish Meteorological Institute, Climate Research, P.O. Box 503,
00101 Helsinki, Finland
University of Helsinki, Department of Physics, P.O. Box 64, 00014
University of Helsinki, Helsinki, Finland
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Cited
10 citations as recorded by crossref.
- Impact of Selected Meteorological Factors on COVID-19 Incidence in Southern Finland during 2020–2021 L. Haga et al. 10.3390/ijerph192013398
- New continuous total ozone, UV, VIS and PAR measurements at Marambio, 64° S, Antarctica K. Lakkala et al. 10.5194/essd-12-947-2020
- Validation of the TROPOspheric Monitoring Instrument (TROPOMI) surface UV radiation product K. Lakkala et al. 10.5194/amt-13-6999-2020
- UV measurements at Marambio and Ushuaia during 2000–2010 K. Lakkala et al. 10.5194/acp-18-16019-2018
- Ultraviolet radiation accelerates photodegradation under controlled conditions but slows the decomposition of senescent leaves from forest stands in southern Finland M. Pieristè et al. 10.1016/j.plaphy.2019.11.005
- Temperature dependence of the Brewer global UV measurements I. Fountoulakis et al. 10.5194/amt-10-4491-2017
- A new method for estimating UV fluxes at ground level in cloud-free conditions W. Wandji Nyamsi et al. 10.5194/amt-10-4965-2017
- Optical laboratory facilities at the Finnish Meteorological Institute – Arctic Research Centre K. Lakkala et al. 10.5194/gi-5-315-2016
- Data flow of spectral UV measurements at Sodankylä and Jokioinen J. Mäkelä et al. 10.5194/gi-5-193-2016
- European UV DataBase (EUVDB) as a repository and quality analyser for solar spectral UV irradiance monitored in Sodankylä A. Heikkilä et al. 10.5194/gi-5-333-2016
7 citations as recorded by crossref.
- Impact of Selected Meteorological Factors on COVID-19 Incidence in Southern Finland during 2020–2021 L. Haga et al. 10.3390/ijerph192013398
- New continuous total ozone, UV, VIS and PAR measurements at Marambio, 64° S, Antarctica K. Lakkala et al. 10.5194/essd-12-947-2020
- Validation of the TROPOspheric Monitoring Instrument (TROPOMI) surface UV radiation product K. Lakkala et al. 10.5194/amt-13-6999-2020
- UV measurements at Marambio and Ushuaia during 2000–2010 K. Lakkala et al. 10.5194/acp-18-16019-2018
- Ultraviolet radiation accelerates photodegradation under controlled conditions but slows the decomposition of senescent leaves from forest stands in southern Finland M. Pieristè et al. 10.1016/j.plaphy.2019.11.005
- Temperature dependence of the Brewer global UV measurements I. Fountoulakis et al. 10.5194/amt-10-4491-2017
- A new method for estimating UV fluxes at ground level in cloud-free conditions W. Wandji Nyamsi et al. 10.5194/amt-10-4965-2017
3 citations as recorded by crossref.
- Optical laboratory facilities at the Finnish Meteorological Institute – Arctic Research Centre K. Lakkala et al. 10.5194/gi-5-315-2016
- Data flow of spectral UV measurements at Sodankylä and Jokioinen J. Mäkelä et al. 10.5194/gi-5-193-2016
- European UV DataBase (EUVDB) as a repository and quality analyser for solar spectral UV irradiance monitored in Sodankylä A. Heikkilä et al. 10.5194/gi-5-333-2016
Latest update: 02 Apr 2025
Short summary
Lamp measurements used for the UV irradiance calibration of two Brewer spectrophotometers operated for 20 years in Jokioinen and Sodankylä, Finland, were examined. Temporal development of the responsivity after fixing the irradiance measurements into a specific scale was studied. Both long-term gradual decrease and abrupt changes in responsiveness were detected. Frequent-enough measurements of working standard lamps were found necessary to detect the short-term variations in responsiveness.
Lamp measurements used for the UV irradiance calibration of two Brewer spectrophotometers...
