Field Quality Control of Spectral Solar Irradiance Measurements by Comparison with Broadband Measurements
MetadataShow full item record
Author/sMarzo, Aitor; Ballestrín, Jesús; Alonso Montesinos, Joaquín Blas; Ferrada Martínez, Pablo; Polo, Jesús; [et al.]
Measurement of solar spectral irradiance is required in an increasingly wide variety of technical applications, such as atmospheric studies, health, and solar energy, among others. The solar spectral irradiance at ground level has a strong dependence on many atmospheric parameters. In addition, spectroradiometer optics and detectors have high sensitivity. Because of this, it is necessary to compare with a reference instrumentation or light source to verify the quality of measurements. A simple and realistic test for validating solar spectral irradiance measurements is presented in this study. This methodology is applicable for a specific spectral range inside the broadband range from 280 to 4000 nm under cloudless sky conditions. The method compares solar spectral irradiance measurements with both predictions of clear-sky solar spectral irradiance and measurements of broadband instruments such as pyrheliometers. For the spectral estimation, a free atmospheric transmittance simulation c...
solar spectral irradiance
radiative transfer code
solar resource assessment