Simulated radiances

var/da/da_radiance/da_read_simulated_rad.inc
New routine to generate "simulated" radiance observations at each model grid point. This option is very similar to the "PSEUDO_RAD" option, but it generates a 3D-array (2D for the model horizontal grid and 1D for all channels) of observations instead of a single observation. It is activated with "USE_SIMULATED_RAD" namelist parameter. Many "PSEUDO_RAD" namelist parameters are re-used for this option. Here is an example to generate simulated AIRS radiance observations (for every channel and for every model grid point):

export NL_USE_SIMULATED_RAD=true
export NL_PSEUDO_RAD_PLATID=9
export NL_PSEUDO_RAD_SATID=2
export NL_PSEUDO_RAD_SENID=11
export NL_PSEUDO_RAD_INV=0.0

var/da/da_radiance/da_setup_radiance_structures.inc
Un-comment the call to simulated radiances.

var/da/da_radiance/da_read_pseudo_rad.inc
Replaced "PSEUDO_RAD_TB" namelist parameter by "PSEUDO_RAD_INV", which reflects better the actual meaning of this parameter. Added AIRS in the list of instruments for the pseudo-radiance single-observation tool.