Measurement Variation and the Factors Influencing the UV Index

Autor/inn/en	Downs, Nathan; Parisi, Alfio; McDonnell, Brendan; Thornton, Peter
Titel	Measurement Variation and the Factors Influencing the UV Index
Quelle	In: Teaching Science, 54 (2008) 2, S.8-13 (6 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1449-6313
Schlagwörter	Measurement Techniques; Prediction; Physics; Elementary Secondary Education; Foreign Countries; Radiation; Cancer; Australia + Suchen Sie Ihr Suchwort? Messtechnik; Vorhersage; Physik; Ausland; Strahlung; Carcinoma; Karzinom; Krebs (med); Krebserkrankung; Australien
Abstract	The article presents a technique to measure the ultraviolet index using a personal hand-held ultraviolet meter to illustrate concepts of physics. Measurements of the erythemally effective (sun-burning) direct solar beam, diffuse skylight, and total global ultraviolet irradiance are converted to daily ultraviolet index measurements. Daily ultraviolet index measurements are then compared to the daily forecast ultraviolet index. The influence of the local environment on the measured and forecast ultraviolet index is further examined with respect to surface reflection, shade structures, trees and buildings placed within the local environment, which each play a significant role in influencing the ultraviolet index at any one location. The measurement techniques presented in the article are provided to suit primary and secondary school-aged children. (Contains 7 figures and 3 tables.) (As Provided).
Anmerkungen	Australian Science Teachers Association. P.O. Box 334, Deakin West, ACT 2600, Australia. Tel: +61-02-6282-9377; Fax: +61-02-6282-9477; e-mail: publications@asta.edu.au; Web site: http://www.asta.edu.au/resources/teachingscience
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10