Lamp/filter systems for simulation of solar ultraviolet irradiance corresponding to various degrees of stratospheric ozone decrease are described for use in field and growth‐chamber biological experiments. In growth‐chamber applications, a constant ultraviolet enhancement simulation can be achieved with a 6000 W xenon arc with glass filters. For field applications, Westinghouse FS‐40 ‘sun lamps’ filtered with plastic films provide an ultraviolet supplement for use when solar altitudes exceed 40°.
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Sisson et al. (1975) studied this question.
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