== Radiation Parameters ==
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Since r1551 an interface for use of radiation models is available in PALM. Currently, PALM offers one built-in radiation model for clear-sky conditions, calculating the net radiation at the surface.

All parts of the radiation code are modularized in module [/browser/palm/trunk/SOURCE/radiation_model.f90 radiation_model_mod]. In this context, a new Fortran NAMELIST {{{radiation_par}}} was added, containing all radiation-related steering parameters. The radiation module is automatically activated when a {{{radiation_par}}} is set in the parameter file ({{{_p3d}}}).

\\\\\\\\\\\\
'''NAMELIST group name: radiation_par''' \\\\

||='''Parameter Name'''  =||='''[../fortrantypes FORTRAN Type]'''  =||='''Default Value'''  =||='''Explanation'''  =||
|----------------
{{{#!td style="vertical-align:top"
[=#alpha_lad '''alpha_lad''']
}}}
{{{#!td style="vertical-align:top"
R
}}}
{{{#!td style="vertical-align:top"
9999999.9
}}}
{{{#!td
Dummy
}}}
|----------------