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Simplified Calibration for Broadband Solar Ultraviolet Radiation Measurements ¶
Author(s) -
Oppenrieder A.,
Hoeppe P.,
Koepke P.,
Reuder J.,
Schween J.,
Schreder J.
Publication year - 2003
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1562/0031-8655(2003)0780603scfbsu2.0.co2
Subject(s) - radiometer , calibration , environmental science , remote sensing , elevation (ballistics) , broadband , radiation , ozone , sunlight , meteorology , atmospheric sciences , optics , physics , geography , quantum mechanics , astronomy
Aspects of different calibration procedures for erythemally weighing broadband radiometers are presented in this study. These instruments are common in projects dealing with ultraviolet radiation effects on humans. Many erythemally weighing broadband radiometers are still operated using a single calibration factor (cf) that is provided with the instrument. The individual characteristics of every instrument are strongly dependent on the total ozone amount and the solar elevation. Therefore, a calibration procedure also has to take into account the ozone concentrations and the solar elevation to compensate for the effects of the individual characteristics and to provide comparable measurements. Given the variation of the ozone concentrations and the solar elevation, an individual cf has to be calculated for every measurement. Using a simplified version of the calibration procedure, which is presented in this study, can lessen this effort. Taking into account the relevant meteorological conditions for a measuring site, a single cf is calculated to compensate the individual characteristics of the instruments and therefore deliver comparable measurements with less effort.