Comparison of Solar UVA and UVB Radiation Measured in Selangor, Malaysia

The solar ultraviolet A (UVA) radiation data was measured at Physics Building, Universiti Kebangsaan Malaysia (2 degree sign 55' N, 101 degree sign 46' E, 50m asl) by the Xplorer GLX Pasco that connected to UVA Light sensor. The measured solar UVA data were compared with the total daily so...

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Main Authors: Kamarudin, S. U., Gopir, G., Yatim, B., Institute of Space Science, Sanusi, H., Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Mahmud, P. S. Megat, Choo, P. Y.
Format: Conference Proceeding
Language:English
Subjects:
ASIA
COHERENT SCATTERING
COMPARATIVE EVALUATIONS
CORRELATIONS
DEVELOPING COUNTRIES
ELECTROMAGNETIC RADIATION
ENVIRONMENTAL SCIENCES
EVALUATION
MALAYSIA
RADIATIONS
RAYLEIGH SCATTERING
SCATTERING
SENSORS
SOLAR RADIATION
STELLAR RADIATION
SURFACES
ULTRAVIOLET RADIATION
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Summary:The solar ultraviolet A (UVA) radiation data was measured at Physics Building, Universiti Kebangsaan Malaysia (2 degree sign 55' N, 101 degree sign 46' E, 50m asl) by the Xplorer GLX Pasco that connected to UVA Light sensor. The measured solar UVA data were compared with the total daily solar ultraviolet B (UVB) radiation data recorded by the Malaysian Metrological Department at Petaling Jaya, Malaysia (3 degree sign 06' N, 101 degree sign 39' E, 50m asl) for 18 days in year 2007. The daily total average of UVA radiation received is (298{+-}105) kJm{sup -2} while the total daily maximum is (600{+-}56) kJm{sup -2}. From the analysis, it shows that the values of UVA radiation data were higher than UVB radiation data with the average ratio of 6.41% between 3-14%. A weak positive correlation was found (the correlation coefficient, r, is 0.22). The amount of UVA radiation that reached the earth surface is less dependence on UVB radiation and the factors were discussed.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.3469722