10. Tides

Related CPP options:

TIDES	Activate tidal forcing at open boundaries
SSH_TIDES	Process and use tidal sea level data
UV_TIDES	Process and use tidal current data
OBC_REDUCED_PHYSICS	Compute tidal velcocity from tidal elevation in case of tidal current is not available
TIDERAMP	Apply ramping on tidal forcing (1 day) at initialization Warning! This should be undefined if restarting the model
TIDES_MAS	Harmonic composition to build tide elevation from SHOM (Simon method) to take into account nodal correction Harmonic composition for currents use the classic method if UV_TIDES is activated.

Preselected options:

# ifdef TIDES
#  define SSH_TIDES
#  define UV_TIDES
#  ifndef UV_TIDES
#   define OBC_REDUCED_PHYSICS
#  endif
#  define TIDERAMP
# endif

Coastal case options with TIDES_MAS:

# ifdef TIDES
#  define SSH_TIDES
#  define UV_TIDES
#  ifndef UV_TIDES
#   define OBC_REDUCED_PHYSICS
#  endif
#  define TIDES_MAS
#  define TIDERAMP
# endif

Important

With TIDES_MAS the user only need an atlas with tidal harmonics (elevation and current) interpolated on the Croco grid. The harmonics dont need to take nodal correction in their amplitude and phase like in classic method.

Important

TIDES_MAS requires the USE_CALENDAR cppkey, because it needs a precise time reference and the origin date from the harmonic’s atlas must be 1900-01-01.