Changes between Version 706 and Version 707 of doc/app/errmsg

Timestamp:

Nov 17, 2020 2:10:37 PM (4 years ago)

Author:

oliver.maas

Comment:

--

doc/app/errmsg

@@ -425 +425 @@
 ||[=#PA0345 PA0345]   ||uv_heights(1) must be 0.0 || See [../initialization_parameters#uv_heights uv_heights] for further instructions. ||
 ||[=#PA0346 PA0346]   ||u_profile(1) and v_profile(1) must be 0.0 || See [../initialization_parameters#u_profile u_profile] and [../initialization_parameters#v_profile v_profile] for further instructions. ||
-||[=#PA0347 PA0347]   ||Coriolis force must be switched off (by setting omega=0.0) when prescribing the forcing by u_profile and v_profile || Construction of the initial wind profile by means of u_profile and v_profile can only be used when the flow is NOT forced by a geostrophic wind (equilibrium between pressure gradient and Coriolis force), hence, when omega = 0.0 is set. Otherwise, inconsistencies in the flow forcing would occur. The u/v_profile mechanism is typically used for wind-tunnel applications, where Coriolis force is neglected. ||
+||[=#PA0347 PA0347]   ||Per default the initial wind profile (u- and v-profile) is set to the geostrophic wind profile. However, the initial wind profile can also be set to a different profile with the initialization parameters ''u_profile'' and ''v_profile'. An initial wind profile that deviates too much from the geostrophic wind profile will cause strong inertia oscillations and thus the mean flow will take a long time to become steady state. The strength of the inertia oscillation can be significantly reduced, when the initial wind profile is set to the steady-state wind profile that might be obtained by a low-cost precursor simulation with a small domain and coarser grid spacing. ||
 ||[=#PA0348 PA0348]   || radiation_interactions_on is set to .FALSE. although vertical surfaces and/or trees exist. The model will run without RTM (no shadows, no radiation reflections) || This is just a warning (self-explanatory). Maybe you should change the namelist parameter radiation_interactions_on to TRUE to get more realistic results.  ||
 ||[=#PA0349 PA0349]   || Incorrect type of plant canopy. Allowed values 0 <= pctype <= 10, but pctype is ... || Description will follow. ||