Hello Croco Users and Developers,
I have a general question about using open boundary forcing to drive dynamics within a regional simulation. For example, when the following CPP options are defined:
FRC_BRY
Z_FRC_BRY
M2_FRC_BRY
M3_FRC_BRY
T_FRC_BRY
the model reads the open boundary forcing information for sea-surface elevation, barotropic velocities, baroclinic velocities, and tracers from an external NetCDF file. Based on the model output, it seems that the boundary conditions for the model variables (e.g., velocities, temperature, etc.) are not interpolated in time at each time step but assigned to values at the nearest time stamp in the external forcing file. Is this correct? If so, I am wondering if there is an option that allows temporal interpolation of boundary conditions at each time step? I believe that such interpolation would yield smoother temporal variations in the simulation results.
I am using CROCO ver1.3.1.
Many thanks!
Guangyu