Field measurements of the global UV-B radiation: a comparison between a broad-band radiometer and a Brewer spectrophotometer |
| |
Authors: | A Anav M L Moriconi S Giannoccolo and M DiMenno |
| |
Institution: | (1) Istituto di Fisica dell'Atmosfera, CNR, Roma, Italy;(2) Reparto Sperimentale di Meteorologia, Servizio Meteorologico Aeronautica Militare, Vigna di Valle, Roma, Italy |
| |
Abstract: | Summary The spectral responsivity shape plays an important role in the prospect of a wide use of broad-band meters in the UV-B monitoring.
As most UV-B broad-band meters have a responsivity approximating an erythemal action spectrum, a measurement campaign was
planned to verify if such an instrument could be successfully used to measure the unfiltered global irradiance. A Yankee radiometer
mod. UV-B 1 and a Brewer spectrophotometer, considered as a reference meter, were compared for this purpose. A short theoretical
treatment of the Yankee radiometer response and some results of the comparison are shown. Only clear-sky days data are selected
so that the UV-B radiation reaching the ground could be modelled as the sum of the direct and the isotropic diffuse components.
The comparison results show a good agreement between the two instruments and confirm the capability of a broad-band UV-B radiometer
of correctly measuring the global irradiance. |
| |
Keywords: | Instrumentation and techniques for geophysical research |
本文献已被 SpringerLink 等数据库收录! |
|