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Development of a method for mapping monthly average hourly diffuse erythemal ultraviolet radiation


Choosri, P and Janjai, S and Nunez, M and Buntoung, S and Chanalert, W, Development of a method for mapping monthly average hourly diffuse erythemal ultraviolet radiation, Journal of Atmospheric and Solar-Terrestrial Physics, 161 pp. 19-27. ISSN 1364-6826 (2017) [Refereed Article]

Copyright Statement

Copyright 2017 Elsevier Ltd.

DOI: doi:10.1016/j.jastp.2017.06.003


In this study, a model for calculating monthly average hourly diffuse erythemal solar ultraviolet (EUV) radiation under all sky conditions in Thailand was developed. The model is a function of air mass, aerosol optical depth and satellite-derived cloud index, as these parameters are sensitive to diffuse EUV radiation. Diffuse EUV irradiance were measured using UV-biometers equipped with shade ball during April 2011-March 2014 at four stations in Thailand. Data from these stations were used to formulate the model. The model was validated using an independent dataset (April 2014-March 2016) at the same sites. The modeled diffuse EUV irradiance showed good agreement with that from the ground-based measurements, with root mean square difference (RMSD) of 12.7% and mean bias difference (MBD) of -2.8%. The use of satellite data provided a simple and practical method to calculate monthly average hourly diffuse EUV irradiance over Thailand. Spatial monthly distributions are shown as maps.

Item Details

Item Type:Refereed Article
Keywords:diffuse radiation, mapping, satellite data, solar ultraviolet radiation
Research Division:Earth Sciences
Research Group:Atmospheric sciences
Research Field:Atmospheric radiation
Objective Division:Environmental Management
Objective Group:Air quality, atmosphere and weather
Objective Field:Atmospheric processes and dynamics
UTAS Author:Nunez, M (Dr Manuel Nunez)
ID Code:118153
Year Published:2017
Web of Science® Times Cited:1
Deposited By:Geography and Spatial Science
Deposited On:2017-07-05
Last Modified:2018-05-22

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