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| Daily graph for the Andernach measuring station |
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| At a UV index value of 1 or more, the current UV index at the specified time is shown at the top right of the UV index graph. The grey line in the graph shows the course of the UV index forecast by the Deutscher Wetterdienst (German Weather Service) under clear skies – the "clear sky forecast". |
Langen measuring station
| Operator | German Environment Agency (UBA) |
| Location | Langen |
| Height | 139 metres above sea level |
| Coordinates | 50°00'17" N 8°39'03" E |
| Measuring system | Spectroradiometer, Broadband radiometer |
| Measuring interval | 6 minutes |
| Calibration | Traceable to PTB |
The measuring station in Langen is part of the nationwide solar UV measuring network
Source: German Environment Agency
Measurement
The measuring station measures the incident UV irradiance at ground level, broken down into small wavelength ranges. The measured values are adjusted using the weighting curve for the biological effect "sunburn" and quoted in the form of the unified global UV index (UVI).
State of 2019.01.23
