tidal results show significant discrepancies

[liucongju]

Dear,

I encountered an issue while using the COAWST version 3.4 model to simulate typhoon events passing through the Taiwan Strait. The simulation results for the typhoon and waves match the observed data fairly basically, but the tidal results show significant discrepancies. I am unsure of the cause of this issue. Could you advise on possible reasons?

in create_roms_tides use osu

my .h refer to sandy+joe_tc

# define SWAN_MODEL
# define WRF_MODEL
# define ROMS_MODEL

#define MCT_LIB
#define MCT_INTERP_OC2AT
#define MCT_INTERP_WV2AT
#define MCT_INTERP_OC2WV

# define DRAGLIM_DAVIS
# define COARE_TAYLOR_YELLAND

#  define WEC_VF
#  define WDISS_WAVEMOD
#  define UV_KIRBY

# define UV_ADV
# define UV_COR
# define UV_VIS2
# define MIX_S_UV

#define  UV_QDRAG

# define DJ_GRADPS
# define TS_DIF2
# define MIX_GEO_TS

# define CURVGRID

# define SALINITY
# define SOLVE3D
# define SPLINES_VDIFF
# define SPLINES_VVISC
# define AVERAGES
# define NONLIN_EOS

#define MASKING

# ifdef WRF_MODEL
#  undef  BULK_FLUXES
#  define ATM2OCN_FLUXES
#  undef  ANA_SSFLUX
#  undef  LONGWAVE_OUT
# else
#  define BULK_FLUXES
# endif

# define ATM_PRESS
# define ANA_BTFLUX
# define ANA_BSFLUX

# define EMINUSP

# define GLS_MIXING
# undef  MY25_MIXING

# if defined GLS_MIXING || defined MY25_MIXING
#  define KANTHA_CLAYSON
#  define N2S2_HORAVG
#  define RI_SPLINES

#  define CRAIG_BANNER
#  undef CHARNOK
# endif

# define SSH_TIDES
# define UV_TIDES

# define RAMP_TIDES

# define ANA_FSOBC
# define ANA_M2OBC

#define STATIONS

results as follows

blue line is from coawst
red line is from observation

Thanke u!

[jcwarner-usgs]

looks like the tides are off. I dont use the OSU tides, but they are usually good.

Can you try the method on the Rutgers site:
https://www.myroms.org/wiki/Tidal_Forcing