Irradiance of the surface area for each unit frequency or wavelength. The terms spectral flux density or maybe more confusingly "spectral depth" will also be made use of. Non-SI units of spectral irradiance contain Jansky = ten W⋅m⋅Hz and solar flux device (1SFU = ten W⋅m⋅Hz). In historical India, https://franko631mvd9.jts-blog.com/profile