Modify water cloud optical properties.  

wc_modify variable scale/set value

 
variable can be one of the following parameter:

gg

Modify the water cloud asymmetry factor for all wavelengths and altitudes.

set

value can be a float between -1.0 and 1.0. Please note that this option is only applied if a Henyey-Greenstein phase function is used but not if an explicit phase function is defined e.g. with wc
_file moments
. It doesn't make sense to modify only the first moment of an explicit phase function. This option is useful only for monochromatic calculations or in wavelength regions where the optical properties of water clouds can be considered constant, e.g. the ultraviolet range.

scale

Scale the water cloud asymmetry factor for all wavelengths and altitudes with value between 0.0 and 1.0.

ssa

Modify the water cloud single scattering albedo for all wavelengths and altitudes.

set

value can be a float between 0.0 and 1.0. This option is useful only for monochromatic calculations or in wavelength regions where the optical properties of water clouds can be considered constant, e.g. the ultraviolet range.

scale

Scale the water cloud single scattering albedo for all wavelengths and altitudes with value between 0.0 and 1.0.

tau

Modify the total water cloud optical thickness.

set

Set optical thickness to a constant value for all wavelengths. The optical thickness defined here is the integral from the surface at the user-defined altitude to TOA (top of atmosphere). This option is useful only for monochromatic calculations or in wavelength regions where the optical properties of water clouds can be considered constant, e.g. the ultraviolet range.

scale

Scale the water cloud optical thickness for all wavelengths and altitudes with value between 0.0 and 1000000.0. Also works for 3d clouds.

tau550

Set the water cloud optical thickness at 550nm. The optical thickness defined here is the integral from the surface at the user-defined altitude to TOA (top of atmosphere). Other wavelengths are scaled accordingly. Note that this option requires for technical reasons that the wavelength interval defined by wavelength does contain 550nm.


wc_modify tau550 set value