Biologically effective daily radiant exposure for erythema appearance, previtamin D<sub>3</sub> synthesis, and clearing of psoriatic lesions derived from erythemal broadband meters at Belsk, Poland, for the period 1976–2023

<p>A long-term series of exposures to solar ultraviolet radiation (UVR) is required to assess the risks and benefits of radiation for different human biological processes. However, homogenisation of the amount of biologically effective solar energy (i.e. energy-weighted according to the sensit...

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Main Authors: J. W. Krzyścin, A. Czerwińska, B. Rajewska-Więch, J. Jarosławski, P. S. Sobolewski, I. Pawlak
Format: Article
Language:English
Published: Copernicus Publications 2025-08-01
Series:Earth System Science Data
Online Access:https://essd.copernicus.org/articles/17/3757/2025/essd-17-3757-2025.pdf
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author J. W. Krzyścin
A. Czerwińska
B. Rajewska-Więch
J. Jarosławski
P. S. Sobolewski
I. Pawlak
author_facet J. W. Krzyścin
A. Czerwińska
B. Rajewska-Więch
J. Jarosławski
P. S. Sobolewski
I. Pawlak
author_sort J. W. Krzyścin
collection DOAJ
description <p>A long-term series of exposures to solar ultraviolet radiation (UVR) is required to assess the risks and benefits of radiation for different human biological processes. However, homogenisation of the amount of biologically effective solar energy (i.e. energy-weighted according to the sensitivity of the selected biological process to solar radiation) reaching the Earth's surface over long periods is challenging due to changes in measurement methods and instruments. This paper presents the world's longest homogenised time series of biologically effective daily radiant exposures (DRE) from regular monitoring with different erythemal broadband radiometers (EBRs) operated at the Central Geophysical Laboratory of the Institute of Geophysics, Polish Academy of Sciences (IG PAS), Belsk (20.79° E, 51.84° N), from 1 January 1976 to 31 December 2023. The following biological effects were considered: erythema, cutaneous synthesis of previtamin D<span class="inline-formula"><sub>3</sub></span>, and clearing of psoriatic lesions. The data for the latter two biological effects are estimated based on the proposed method of using EBR measurements to calculate other non-erythemal DRE. The following EBRs were used in the monitoring: Robertson–Berger meter (1975–1992), Solar Light model 501 (1993–1994 with #927, 1995–2013 with #2011), and Kipp &amp; Zonen UV-AE-T #30616 from 5 August 2013 to the present. From 1976 to 2013, the homogenisation procedure consisted of comparing the measured erythemal DRE and daily maximum of UV index (UVI<span class="inline-formula"><sub>MAX</sub></span>) with the corresponding modelled values from simulations using a radiation transfer model for cloudless conditions. Between 2014 and 2023, the EBR data were compared with data from a collocated reference instrument, the Brewer Mark II #64 spectrophotometer. Such comparisons resulted in a set of multipliers that were applied to the EBR measurements. Two different versions of the homogenisation method were applied, analysing modelled and observed values for erythemal DRE and UVI<span class="inline-formula"><sub>MAX</sub></span> assuming different criteria for cloudless days. Three regression models of the erythemal data on common UVR proxy data (total column ozone, aerosol optical depth, and global clear-sky irradiance index) were used to reconstruct the UVR data from the beginning of the Belsk observations, allowing further validation of the homogenised UVR data. Linear trends calculated showed a statistically significant increase in erythemal annual and summer (June to August) radiant exposures of about 6 % per decade over the period 1976–2005. Thereafter, no trend was observed. Similar trend estimates were found for all biological effects considered. The data are made freely available via the following repository: <a href="https://doi.org/10.1594/PANGAEA.972139">https://doi.org/10.1594/PANGAEA.972139</a> (Krzyścin et al., 2024). An additional version of the re-evaluated data, together with the corresponding clear-sky and proxy data used in the UVR data reconstruction, is archived at <span class="uri">https://doi.org/10.25171/InstGeoph_PAS_IGData_Biologically_Effective_Solar_Radiation_Belsk_1976_2023</span> (Krzyścin, 2024).</p>
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spelling doaj-art-3342a929590d4e5394095c8cfacd89a12025-08-20T03:02:10ZengCopernicus PublicationsEarth System Science Data1866-35081866-35162025-08-01173757377510.5194/essd-17-3757-2025Biologically effective daily radiant exposure for erythema appearance, previtamin D<sub>3</sub> synthesis, and clearing of psoriatic lesions derived from erythemal broadband meters at Belsk, Poland, for the period 1976–2023J. W. Krzyścin0A. Czerwińska1B. Rajewska-Więch2J. Jarosławski3P. S. Sobolewski4I. Pawlak5Institute of Geophysics, Polish Academy of Sciences, Warsaw, 01-452, PolandInstitute of Geophysics, Polish Academy of Sciences, Warsaw, 01-452, PolandInstitute of Geophysics, Polish Academy of Sciences, Warsaw, 01-452, PolandInstitute of Geophysics, Polish Academy of Sciences, Warsaw, 01-452, PolandInstitute of Geophysics, Polish Academy of Sciences, Warsaw, 01-452, PolandInstitute of Geophysics, Polish Academy of Sciences, Warsaw, 01-452, Poland<p>A long-term series of exposures to solar ultraviolet radiation (UVR) is required to assess the risks and benefits of radiation for different human biological processes. However, homogenisation of the amount of biologically effective solar energy (i.e. energy-weighted according to the sensitivity of the selected biological process to solar radiation) reaching the Earth's surface over long periods is challenging due to changes in measurement methods and instruments. This paper presents the world's longest homogenised time series of biologically effective daily radiant exposures (DRE) from regular monitoring with different erythemal broadband radiometers (EBRs) operated at the Central Geophysical Laboratory of the Institute of Geophysics, Polish Academy of Sciences (IG PAS), Belsk (20.79° E, 51.84° N), from 1 January 1976 to 31 December 2023. The following biological effects were considered: erythema, cutaneous synthesis of previtamin D<span class="inline-formula"><sub>3</sub></span>, and clearing of psoriatic lesions. The data for the latter two biological effects are estimated based on the proposed method of using EBR measurements to calculate other non-erythemal DRE. The following EBRs were used in the monitoring: Robertson–Berger meter (1975–1992), Solar Light model 501 (1993–1994 with #927, 1995–2013 with #2011), and Kipp &amp; Zonen UV-AE-T #30616 from 5 August 2013 to the present. From 1976 to 2013, the homogenisation procedure consisted of comparing the measured erythemal DRE and daily maximum of UV index (UVI<span class="inline-formula"><sub>MAX</sub></span>) with the corresponding modelled values from simulations using a radiation transfer model for cloudless conditions. Between 2014 and 2023, the EBR data were compared with data from a collocated reference instrument, the Brewer Mark II #64 spectrophotometer. Such comparisons resulted in a set of multipliers that were applied to the EBR measurements. Two different versions of the homogenisation method were applied, analysing modelled and observed values for erythemal DRE and UVI<span class="inline-formula"><sub>MAX</sub></span> assuming different criteria for cloudless days. Three regression models of the erythemal data on common UVR proxy data (total column ozone, aerosol optical depth, and global clear-sky irradiance index) were used to reconstruct the UVR data from the beginning of the Belsk observations, allowing further validation of the homogenised UVR data. Linear trends calculated showed a statistically significant increase in erythemal annual and summer (June to August) radiant exposures of about 6 % per decade over the period 1976–2005. Thereafter, no trend was observed. Similar trend estimates were found for all biological effects considered. The data are made freely available via the following repository: <a href="https://doi.org/10.1594/PANGAEA.972139">https://doi.org/10.1594/PANGAEA.972139</a> (Krzyścin et al., 2024). An additional version of the re-evaluated data, together with the corresponding clear-sky and proxy data used in the UVR data reconstruction, is archived at <span class="uri">https://doi.org/10.25171/InstGeoph_PAS_IGData_Biologically_Effective_Solar_Radiation_Belsk_1976_2023</span> (Krzyścin, 2024).</p>https://essd.copernicus.org/articles/17/3757/2025/essd-17-3757-2025.pdf
spellingShingle J. W. Krzyścin
A. Czerwińska
B. Rajewska-Więch
J. Jarosławski
P. S. Sobolewski
I. Pawlak
Biologically effective daily radiant exposure for erythema appearance, previtamin D<sub>3</sub> synthesis, and clearing of psoriatic lesions derived from erythemal broadband meters at Belsk, Poland, for the period 1976–2023
Earth System Science Data
title Biologically effective daily radiant exposure for erythema appearance, previtamin D<sub>3</sub> synthesis, and clearing of psoriatic lesions derived from erythemal broadband meters at Belsk, Poland, for the period 1976–2023
title_full Biologically effective daily radiant exposure for erythema appearance, previtamin D<sub>3</sub> synthesis, and clearing of psoriatic lesions derived from erythemal broadband meters at Belsk, Poland, for the period 1976–2023
title_fullStr Biologically effective daily radiant exposure for erythema appearance, previtamin D<sub>3</sub> synthesis, and clearing of psoriatic lesions derived from erythemal broadband meters at Belsk, Poland, for the period 1976–2023
title_full_unstemmed Biologically effective daily radiant exposure for erythema appearance, previtamin D<sub>3</sub> synthesis, and clearing of psoriatic lesions derived from erythemal broadband meters at Belsk, Poland, for the period 1976–2023
title_short Biologically effective daily radiant exposure for erythema appearance, previtamin D<sub>3</sub> synthesis, and clearing of psoriatic lesions derived from erythemal broadband meters at Belsk, Poland, for the period 1976–2023
title_sort biologically effective daily radiant exposure for erythema appearance previtamin d sub 3 sub synthesis and clearing of psoriatic lesions derived from erythemal broadband meters at belsk poland for the period 1976 2023
url https://essd.copernicus.org/articles/17/3757/2025/essd-17-3757-2025.pdf
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