Intercomparison of erythemal broadband radiometers calibrated by seven UV calibration facilities in Europe and the USA

Methodology for Deriving Clear-Sky Erythemal Calibration Factors for UV Broadband Radiometers of the U.S. Central UV Calibration Facility

In the United States, there are several federal agencies interested in the effects of UV radiation, which has resulted in the establishment of UV monitoring programs each with their own instrumentation and sites designed to address their specific needs. In 1993, participating agencies of the U.S. Global Change Research Program organized a UV Panel for coordinating the different agencies’ progra...

Intercomparison of monochromatic source facilities for the determination of the relative spectral response of erythemal broadband filter radiometers.

The relative spectral responses of erythemally weighted broadband radiometers determined at three different laboratories are compared, and the systems are described. The results of measurements of four different broadband radiometers are discussed. Although the common dynamic range of the measured relative spectral responses is approximately 10(4), the differences in the relative spectral respo...

7.4 European Uv Broad Band Filter Radiometer Reference Scale

The pertinent lack of a standard calibration procedure for UV filter radiometers introduces unknown and potentially large uncertainties in their measurement products. Although most UV calibration facilities take into account many instrument properties that affect the measurement quality of UV filter radiometers, some instrument characteristics that are difficult to determine present substantial...

Development and evaluation of an extensive calibration procedure for UV filter radiometers

As a consequence of stratospheric ozone depletion and due to the current uncertainties in the Earth’s climate, ultraviolet radiation observations are becoming increasingly important and nowadays form a part of many radiation monitoring networks. UV irradiance is commonly measured either with spectrophotometers or with filter instruments. While the most accurate UV radiation measurements are obt...

Improving the solar zenith angle dependence of broadband UV radiometers calibration