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Simulation of Threshold UV Exposure Time for Vitamin D Synthesis in South Korea
Joint Authors
Park, Sang Seo
Lee, Yun Gon
Kim, Migyoung
Kim, Jaemin
Koo, Ja-Ho
Kim, Chang Ki
Um, Junshik
Yoon, Jongmin
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-01-27
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
The threshold exposure time for synthesis of vitamin D was simulated by using a radiative transfer model considering variations in total ozone, cloud, and surface conditions.
The prediction of total ozone took the form of an empirical linear regression with the variables of meteorological parameters in the upper troposphere and lower stratosphere and the climatology value of total ozone.
Additionally, to consider cloud extinction after the estimation of clear-sky UV radiation using a radiative transfer model simulation, a cloud modification factor was applied.
The UV irradiance was estimated at one-hour intervals, and then, to improve the temporal resolution of the exposure time simulation, it was interpolated to a one-minute resolution.
Exposure times from the simulation clearly followed seasonal and diurnal cycles.
However, upon comparison with observations, biases with large variations were found, and the discrepancy in the exposure time between the observations and simulations was higher in low UV irradiance conditions.
The large deviations in the prediction errors for total ozone and the simplified assumption for the cloud modification factor contributed to the large deviations in exposure time differences between the model estimation and observations.
To improve the accuracy of the simulated exposure time, improved predictions of total ozone with a more detailed cloud treatment will be essential.
American Psychological Association (APA)
Park, Sang Seo& Lee, Yun Gon& Kim, Migyoung& Kim, Jaemin& Koo, Ja-Ho& Kim, Chang Ki…[et al.]. 2019. Simulation of Threshold UV Exposure Time for Vitamin D Synthesis in South Korea. Advances in Meteorology،Vol. 2019, no. 2019, pp.1-15.
https://search.emarefa.net/detail/BIM-1118651
Modern Language Association (MLA)
Park, Sang Seo…[et al.]. Simulation of Threshold UV Exposure Time for Vitamin D Synthesis in South Korea. Advances in Meteorology No. 2019 (2019), pp.1-15.
https://search.emarefa.net/detail/BIM-1118651
American Medical Association (AMA)
Park, Sang Seo& Lee, Yun Gon& Kim, Migyoung& Kim, Jaemin& Koo, Ja-Ho& Kim, Chang Ki…[et al.]. Simulation of Threshold UV Exposure Time for Vitamin D Synthesis in South Korea. Advances in Meteorology. 2019. Vol. 2019, no. 2019, pp.1-15.
https://search.emarefa.net/detail/BIM-1118651
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1118651