# Code table 4.2 - Parameter number by product discipline and parameter category 0 0 Net short-wave radiation flux (surface) (W m-2) 1 1 Net short-wave radiation flux (top of atmosphere) (W m-2) 2 2 Short-wave radiation flux (W m-2) 3 3 Global radiation flux (W m-2) 4 4 Brightness temperature (K) 5 5 Radiance (with respect to wave number) (W m-1 sr-1) 6 6 Radiance (with respect to wavelength) (W m-3 sr-1) 7 7 Downward short-wave radiation flux (W m-2) 8 8 Upward short-wave radiation flux (W m-2) 9 9 Net short wave radiation flux (W m-2) 10 10 Photosynthetically active radiation (W m-2) 11 11 Net short-wave radiation flux, clear sky (W m-2) 12 12 Downward UV radiation (W m-2) 13 13 Direct short-wave radiation flux (W m-2) 14 14 Diffuse short-wave radiation flux (W m-2) # 15-49 Reserved 50 50 UV index (under clear sky) (Numeric) 51 51 UV index (Numeric) 52 52 Downward short-wave radiation flux, clear sky (W m-2) 53 53 Upward short-wave radiation flux, clear sky (W m-2) # 54-191 Reserved # 192-254 Reserved for local use 255 255 Missing