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Grant support

The authors wish to thank the Radiation Solar Group of University of Valencia for providing irradiance measurement data. The translation of this paper was funded by the Universitat Politecnica de Valencia, Spain. The research was supported by the Generalitat Valenciana within the projectPROMETEO II 058.

Analysis of institutional authors

Gurrea-Ysasi, GonzaloAuthorBlanca-Gimenez, VicenteCorresponding AuthorPerez, VicenteAuthorSerrano, María-Antonia AuthorMoreno, Juan-CarlosAuthor

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Article

Statistical Study and Prediction of Variability of Erythemal Ultraviolet Irradiance Solar Values in Valencia, Spain

Publicated to:Asia-Pacific Journal Of Atmospheric Sciences. 54 (4): 599-610 - 2018-11-01 54(4), DOI: 10.1007/s13143-018-0079-y

Authors: Gurrea, Gonzalo; Blanca-Gimenez, Vicente; Perez, Vicente; Serrano, Maria-Antonia; Moreno, Juan-Carlos

Affiliations

Univ Politecn Valencia, Dept Construcc Arquitecton, Camino Vera S-N, E-46022 Valencia, Spain - Author
Univ Politecn Valencia, Dept Fis Aplicada, Valencia, Spain - Author

Abstract

The goal of this study was to statistically analyse the variability of global irradiance and ultraviolet erythemal (UVER) irradiance and their interrelationships with global and UVER irradiance, global clearness indices and ozone. A prediction of short-term UVER solar irradiance values was also obtained. Extreme values of UVER irradiance were included in the data set, as well as a time series of ultraviolet irradiance variability (UIV). The study period was from 2005 to 2014 and approximately 250,000 readings were taken at 5-min intervals. The effect of the clearness indices on global irradiance variability (GIV) and UIV was also recorded and bi-dimensional distributions were used to gather information on the two measured variables. With regard to daily GIV and UIV, it is also shown that for global clearness index (k(t)) values lower than 0.6 both global and UVER irradiance had greater variability and that UIV on cloud-free days (k(t) higher than 0.65) exceeds GIV. To study the dependence between UIV and GIV the (2) statistical method was used. It can be concluded that there is a 95% probability of a clear dependency between the variabilities. A connection between high k(t) (corresponding to cloudless days) and low variabilities was found in the analysis of bi-dimensional distributions. Extreme values of UVER irradiance were also analyzed and it was possible to calculate the probable future values of UVER irradiance by extrapolating the values of the adjustment curve obtained from the Gumbel distribution.

Keywords

CalibrationCloudsDiffuseGlobal radiationIndeOzoneShort-term variabilityStatistical analysiStatistical analysisSurfaceUv-radiationUver predictionVariability uver

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Asia-Pacific Journal Of Atmospheric Sciences due to its progression and the good impact it has achieved in recent years, according to the agency Scopus (SJR), it has become a reference in its field. In the year of publication of the work, 2018, it was in position , thus managing to position itself as a Q2 (Segundo Cuartil), in the category Atmospheric Science. Notably, the journal is positioned en el Cuartil Q3 for the agency WoS (JCR) in the category Meteorology & Atmospheric Sciences.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2025-06-20:

  • WoS: 2
  • Scopus: 2
  • OpenCitations: 2

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-06-20:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 6.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 6 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 3.

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Gurrea, Gonzalo) and Last Author (Moreno Esteve, Juan Carlos).

the author responsible for correspondence tasks has been Blanca Giménez, Vicente.