Hi,
Currently there are interior nudging options as explained on this post:
For SST:
#undef BULK_FLUX leads to #define QCORRECTION which corrects surface heat flux with SST nudging.
For ACTIVE tracers (T,S):
T,S you can use #define ROBUST_DIAG, which will nudge to what is put in tclm and sclm arrays. Which are defined inside the croco_clm.nc file.
Is it possible to nudge to other interior tracers such as nutrients e.g. NO3 if such measurements are available?
I see in the set_nudgcof.F functional that when #define ROBUST_DIAG, only T, S nudge coefficients are specified and not for the rest of tracers for the interior.
Is there a way to nudge other tracers?
In recent versions of ROMS => 3.7 there is an option to specify a separate netCDF file with nudge coefficients for the whole 3D domain. Does this option exist in CROCO too?
And lastly, there are indicative values in the croco.in file for inflow from the boundary (strong nudge) nudge coefficient e.g. TauT_in = 1, and outflow from the boundary (gentle nudge) e.g. TauT_out = 360. When ROBUST_DIAG is activated, the TauT_out is used. Is there any criterion to what coefficient to use for interior nudging?
Thanks
Konstantinos