The software is widely used for lighting analysis and can generate accurate values for radiance/luminance (W/sr.m²,cd/m²) and irradiance/illuminance (W/m,Lux). It allows very detailed definition of materials’ and light sources’ properties through the use of advanced techniques like brdf...
In order to define parameters such as the spectral radiance, irradiance, and power of an unknown radiation source, the measurement uncertainty needs to be calculated. One of the most common tools used to do this is the Guide to the Expression of Uncertainty in Measurement (GUM), which was pu...
Spectral shift Spectral Signal to Noise Ratio Spectral Solar Irradiance spectral temperature ▼Complete English Grammar Rules is now available in paperback and eBook formats. Make it yours today! Advertisement. Bad banner? Please let us know Remove AdsFace...
Predicting solar irradiance on inclined surfaces using sky radiance data. Energy Convers Manage 2004;45(11-12):1771-83.Danny H. W. Li and Joseph C. Lam, “Predicting solar irradiance on inclined surfaces using sky radiance data”, Energy Conversion and Management, Volume 45, Issue11–12, ...
Because of that constancy of radiance (as long as there is no loss of light on the way to the observer), one may actually consider the irradiance is a property of the Sun, rather than as a field quantity as it was originally defined. While the irradiance on the entrance of the eye to...
In principle, the conversion is not always straightforward due to spectral averaging and also because the radiative transfer theory is strictly only valid for monochromatic radiation (Korb and Zdunkowski, 1970). Independently of conversion tool, the difficulties with modeling the realistic radiance or ...
The radiance arriving at the sensor, as described in Chapter 2, is transferred by the sensor optics to the detector focal plane where an image is formed. The spectral irradiance on a detector located on the optical axis is related to the at-sensor radiance LK by the camera equation (Slater...
The advent of this new program poses the problem of the transfer of operational procedures from the previous satellite Meteosat-7 to MSG. Among these operational procedures are several different implementations of the Heliosat method to convert Meteosat data into irradiance maps. An easy-to-implement...
Since the angular distribution of reflected shortwave radiation can vary dramatically from one scene to another, the conversion of the directional satellite-observed radiance to the energetically relevant hemispherically integrated quantity of irradiance is non-trivial. We must rely on a model for this ...