Ocean Modeling Discussion

It should be a good comment, since wave only transports energy, not for material as float.

However, it raise me a question that, in order to convince the audience how float is transported in right way, it is had better to put figure of flow together. Although transport of float depend on several ...

I set "undef" for all "FLOAT", "T-PASSIVE" and "SEDIMENT". Also I just ran ROMS alone, not coupling with WRF or SWAN.

It is really nice comment. I reduced depth the surface gravity wave speed decrease a lot.

However, in case I just only want to observe how flow base on the advection transport to other boundary. Could you kindly suggest me how to do that?

Thanks

Thanks for your comment.

The depth of my domain is 160 meter.

The vertical layers are 30. For simplicity, all layers have the same velocity. "no-slip condition was set.

I did not run with tide and all atmospheric forcing were set zeros.

Hello everyone

I did for ideal domain size with length of 200km in y, and 200km in x direction. The resolution is 3km x 3km.

I put advection (source) at the left boundary with value of 0.4 m/s, while value in the inner domain are 0.1 m/s. Direction of current is only from left to right (u=0.4m/s ...

Thanks Zaser for nice information. That is exact reason why I had error with point source.

Dear all,

I want to see how temperature and salinity (T-S) transport from the point source. I turned on LtracerSrc == T T T, and putted temperature and salinity in the "river forcing NetCDF" with "river_flafg(river)=3 for whole depth column. The value of temperature and salinity are different with ...

Many thanks for your great suggestion on focusing on TS_PSOURCE & UV_PSOURCE. I did turn off LuvSrc (LuvSrc ==F) before. Now, I turn on it, the results seems to be correct. The "sandmass_01" does not increasing anymore with the range just from 1.0e-004 to 4.0e-004. However, I still can not ...

The flow rate is 0.01 m3/s. In my problem, the sediment concentration is quite high because it is released from mining activity. We may have 3 scenarios of releasing sediment from that with respect to the depth of release (at the surface (70m), middle (30m) or bottom).

The location of sediment ...

I am so sorry for keep you waiting so long, because I was out of the office.

I implemented the point source as a 1 river source. In order to constrain it stops after first 24 hours, I set the runoff equate 0 after first 24 hours.

In addition, to release sediment at surface I only gave the value ...

Hi.
I simulated sand_01 transport from a point source (released only 24 hour) at the surface layer (25 layers with average depth around 70 m), sand_01 concentration of point source is 70 kg/m3, water discharge is 0.01 m3/s horizontal resolution in 6x6 km.
Some other parameters in sediment.in as ...

Haizz. It is my mistake. I had typo in file "swan.in". The number "27" in line "INPGRID BOTTOM CURVILINEAR 0 0 156 27 EXC 9.999000e+003" must be replaced by 117 (it is horizontal grid point). Therefore, ROMS showed error with the "upper bound=28".
I am so sorry for making you confuse above. Happy ...

Thanks for your nice explanation, Zafer. It clearly makes sense to me

Dear ROMS users

I ran coupling ROMS with SWAN. It gave me following errors:

" NL ROMS/TOMS: started time-stepping: (Grid: 01 TimeSteps: 00351361 - 00047520)

GET_NGFLD - temperature western boundary condition, t = 244 12:00:00
(Rec=0000003, Index=1, File: roms_bry_eez_09.nc)
(Tmin= 242.5000 ...

Many thanks for your nice comments, Kate and Zafer. They help me understand a lot. My original aim is simply to simulate the sediment transport and tracking dye. However, ROMS gave me some error on requested variables including mud_01_sflux, sand_01_sflux and dye_01_sflux in the forcing file ...

As following the above error. I ran ROMS with USE_DEBUG. It gave me the following error (please see more detail in file "ocean_basin.log" :

" GET_2DFLD - dye concentration, type 01, surface flux, t = 245 04:59:57
(Rec=0000126, Index=1, File: roms_frc_eez_09.nc)
(Tmin= 240.0000 Tmax= 245.2083)
0 ...

It is right. I provided mud_01_sflux & sand_01_sflux in 2D. However, if I provide them in 3D (mud_01_sflux(ocean_time,s_rho,eta_rho,xi_rho). Please see the attached files "create_forcing.m". ROMS showed error as

" - error while reading variable: mud_01_sflux at TIME index= ...
...
ERROR:Abnormal ...

Dear Guys

I switch on Sediment with only "define SUSPLOAD". ROMS asked me to provide mud_01_sflux & sand_01_sflux in forcing files. However, after providing them, ROMS gives me the error report " INQUIRE - unable to find requested variable: in files roms_blk.nc and roms_frc.nc". Could anyone tell ...

Thank you very much for your useful comment. It work now

Dear Guys,

I still get problem with changing the coordinate

1. I set spherical to be True in /Functionals/ana_grid.h. The x_rho & y_rho changed to lon_rho & lat_rho but zero value in roms_avg.nc & roms_his.nc.

2. In the gird file I always set spherical to True. However, the x_rho & y_rho still ...

Great comment. It done

Thank you very much

Dear Guys,

Could anyone tell me how to change the unit of x_rho and y_rho from "meter" to "degree" in output files of ROMS "ocean_avg.nc and ocean_his.nc" ?

Thank you very much

PV-Sy

Thank You for your advice,

I have solved my problem by using old Preprocessing_tool package. I do not understand why. hic

Thank you very much

Dear all

I am trying to create file roms_grd.nc with Matlab2010a, mexcdf.r3776, and romstools_param.m (in attached file. However, I get error showing as below:

..................
Compute the metrics...

Min dx=16.34 km - Max dx=18.5221 km
Min dy=16.3735 km - Max dy=18.5221 km

Fill the grid ...

I greatly appreciate for your help.

As you mention, I replaced -M with -L in the flibs variable. Now it is compiled without any errors

Thank you very much

Hello,

I am trying to build ROMS v3.4 with pgi10.6 and netcdf-4.1-beta2 on UBUNTU 10.10. I met an error as following:
......................
cp -p /home/dhson/make_macros.mk Build
makefile:234: INCLUDING FILE Build/make_macros.mk WHICH CONTAINS APPLICATION-DEPENDENT MAKE DEFINITIONS
/opt/pgi ...