As an alternate Measure spectra of light prevalent including infrared range. Convert wavelength to temperature using weins or planks law. Hope this need only spectrum measurement.
Yes of course, but we have a pyrgeometer with a high sensivity to longwave radiation. it provides a small voltage as an output which is correlated to the radiation by a sensitivity coefficient (μV/W/m²), Now we can measure the sky temperature using the radiative heat exchange equation.
Good morning! How do I go about selecting the appropriate sky temperature model to estimate the sky temperature at a location with latitude 63.75? Will be grateful if someone can give some guidance please?