Question

Vest is solar spectral irradiance

Answer 1

Solar spectral irradiance refers to the distribution of the sun's energy across different wavelengths or wavelengths bands. It represents the amount of solar radiation per unit of wavelength or wavelength interval at a given distance from the sun.

Vest, on the other hand, does not seem to be directly related to solar spectral irradiance. It is possible that "Vest" is a typo or an acronym that was meant to be clarified in the question. Please provide more information or context for further assistance.