the simulation result is bad

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xwbin
Posts: 20
Joined: Tue Aug 19, 2014 4:35 pm
Location: xiamen university

the simulation result is bad

#1 Unread post by xwbin »

Hi,
I wanna run a model to analyse the South China Sean Circulation,but the results are realy different comparing with hycom data which I used for the initial and boundary conditions.There is no tide in my model,only the wind from Climate Forecast System Version 2 (CFSv2) and zeta from Hycom driving the model.
You can see the details in the attachments,which is the annual average.It is obviouse that the Kuroshio intrusion from western Pacific to the northern South China Sea is stronger than the Hycom data.
I doubt that there is something wrong with my cppdef.h file.Please help me check.Any comments or suggestions are really helpful to me.Thank you!

#define UV_ADV
#define UV_COR
#define UV_QDRAG
#undef UV_LOGDRAG
#undef UV_SMAGORINSKY
#define UV_VIS2
#ifdef UV_VIS2
# define VISC_GRID
# define MIX_S_UV
#endif

#define TS_MPDATA
#undef TS_DIF2
#ifdef TS_DIF2
# define DIFF_GRID
# define MIX_S_TS
#endif

#define DJ_GRADPS
#define NONLIN_EOS
#define SALINITY
#define SOLVE3D
#define SPLINES
#define MASKING
#define CURVGRID
#define SPHERICAL

#define AVERAGES
#define AVERAGES_AKV
#define AVERAGES_AKT
#define AVERAGES_AKS
#define AVERAGES_FLUXES

#undef DIAGNOSTICS_UV
#undef DIAGNOSTICS_TS

#undef FSOBC_REDUCED
#undef EAST_FS_REDUCED
#undef WEST_FS_REDUCED
#undef NORTH_FS_REDUCED

#define PERFECT_RESTART

#undef TCLIMATOLOGY
#undef TCLM_NUDGING

#define RADIATION_2D

#define GLS_MIXING
#undef MY25_MIXING
#if defined GLS_MIXING || defined MY25_MIXING
# define KANTHA_CLAYSON
# undef CANUTO_A
# define N2S2_HORAVG
#endif

#undef SEDIMENT
#ifdef SEDIMENT
# define SUSPLOAD
# undef SED_DENS
# undef wsed_power
# undef no_deposition
#endif

#undef ANA_PSOURCE
#undef ANA_GRID
#undef ANA_INITIAL
#undef ANA_SEDIMENT
#undef ANA_SMFLUX
#define ANA_STFLUX
#define ANA_BTFLUX
#define ANA_SSFLUX
#define ANA_BSFLUX
#define ANA_SPFLUX
#define ANA_BPFLUX
#undef ANA_FSOBC
#undef ANA_M2OBC
#undef ANA_M3OBC
#undef ANA_TOBC
#undef ANA_TCLIMA
#undef ANA_VMIX
[/size]
Attachments
model output data whose Kuroshio intrusion is really stronger than the original data
model output data whose Kuroshio intrusion is really stronger than the original data
original hycom data
original hycom data

User avatar
kate
Posts: 4088
Joined: Wed Jul 02, 2003 5:29 pm
Location: CFOS/UAF, USA

Re: the simulation result is bad

#2 Unread post by kate »

I doubt that there is something wrong with my cppdef.h file.
I think you mean "suspect" and not "doubt". The only thing I see there is signs of a really old ROMS version, nothing all that suspicious. I don't see anything all that alarming about your flow fields either, unless you know from data that you have way too much happening in the South China Sea. The only forcing is wind stress?

xwbin
Posts: 20
Joined: Tue Aug 19, 2014 4:35 pm
Location: xiamen university

Re: the simulation result is bad

#3 Unread post by xwbin »

kate wrote:
I doubt that there is something wrong with my cppdef.h file.
I think you mean "suspect" and not "doubt". The only thing I see there is signs of a really old ROMS version, nothing all that suspicious. I don't see anything all that alarming about your flow fields either, unless you know from data that you have way too much happening in the South China Sea. The only forcing is wind stress?
Thanks!
The only forcing is wind stress,and do I need to add the heat flux to make the model output closer to the hycom?

User avatar
kate
Posts: 4088
Joined: Wed Jul 02, 2003 5:29 pm
Location: CFOS/UAF, USA

Re: the simulation result is bad

#4 Unread post by kate »

To get the closest to HYCOM, you should use the same surface forcing they use. This would include heat and salt fluxes. Find out if they use a bulk flux formulation internally and do what they do.

xwbin
Posts: 20
Joined: Tue Aug 19, 2014 4:35 pm
Location: xiamen university

Re: the simulation result is bad

#5 Unread post by xwbin »

kate wrote:To get the closest to HYCOM, you should use the same surface forcing they use. This would include heat and salt fluxes. Find out if they use a bulk flux formulation internally and do what they do.
Thanks,Kate.I will have a try!I suspect that I don't set the parameters well because most of them are difficult to undertand. Can you give me some advisement and help me point out which is obviously wrong?

User avatar
kate
Posts: 4088
Joined: Wed Jul 02, 2003 5:29 pm
Location: CFOS/UAF, USA

Re: the simulation result is bad

#6 Unread post by kate »

We know nothing about your parameters. Perhaps if you post them people can chime in with advice.

So what is your goal here? Are you running at the HYCOM resolution?

xwbin
Posts: 20
Joined: Tue Aug 19, 2014 4:35 pm
Location: xiamen university

Re: the simulation result is bad

#7 Unread post by xwbin »

kate wrote:We know nothing about your parameters. Perhaps if you post them people can chime in with advice.

So what is your goal here? Are you running at the HYCOM resolution?
Thanks,Kate!I wanna to make my model closer to the hycom in order to run some sensitive experiments.And my model resolution is 1/10°.I forgot to paste the parameters ,sorry for that!I will post them later.thank you very much!

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