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ROMS/TOMS

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PostPosted: Thu Jul 13, 2017 12:35 am 
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Hi every one

I performed detide test using the ROMS/TOMS 3.7 version.
In my cpp option, AVERAGES_DETIDE, AVERAGES, UV_TIDES, SSH_TIDES was applied.
Compiling and model run very well. To confirm detide result, average file output is hourly mean.
But result is that zeta_detided is too high from 1 to 55 hour. Initial max zeta_detided height appear higher sea level than 1000000 m. But since 60 hour, zeta_detided is stable and appear removed tide signal.

My problem is that why too high zeta_detided such as 1000000 m appear and how solved this phenomenon (or problem ?). Below figure is my result.

thanks.


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detide_test.png
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PostPosted: Fri Jul 14, 2017 9:06 am 
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Joined: Thu Jan 08, 2015 11:16 pm
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Location: iit delhi
Dear All,

I am getting the following run error message while simulating ROMS model

GET_NGFLD - tidal period
(Min = 2.19720215E+04 Max = 2.38071489E+06)
GET_2DFLD - tidal elevation amplitude
(Min = 0.00000000E+00 Max = 1.64313322E+00)
GET_2DFLD - tidal elevation phase angle
(Min = -2.86857319E+00 Max = 1.06235184E+01)
GET_2DFLD - tidal current inclination angle
(Min = 0.00000000E+00 Max = 6.28318242E+00)
GET_2DFLD - tidal current phase angle
(Min = 0.00000000E+00 Max = 6.28318375E+00)
GET_2DFLD - maximum tidal current, ellipse major axis
(Min = 0.00000000E+00 Max = 7.56411946E-01)
GET_2DFLD - minimum tidal current, ellipse minor axis
(Min = -2.30937586E-01 Max = 2.50106657E-01)

DEF_VAR - unable to define variable: zeta_tide
in NetCDF file: ./Projects/RAVI_EXP_8/tide_ravi_exp_8.nc

Here are what I used:

Aout(idUbar) == T ! ubar 2D U-velocity
Aout(idVbar) == T ! vbar 2D V-velocity
Aout(idu2dE) == T ! ubar_eastward 2D U-eastward at RHO-points
Aout(idv2dN) == T ! vbar_northward 2D V-northward at RHO-points
Aout(idFsur) == T ! zeta free-surface

Aout(idu3dD) == T ! u_detided detided 3D U-velocity
Aout(idv3dD) == T ! v_detided detided 3D V-velocity
Aout(idu2dD) == T ! ubar_detided detided 2D U-velocity
Aout(idv2dD) == T ! vbar_detided detided 2D V-velocity
Aout(idFsuD) == T ! zeta_detided detided free-surface


(2) cpp.h options:
# define RAMP_TIDES
# define SSH_TIDES
# define UV_TIDES
# define AVERAGES_DETIDE
# define AVERAGES

But once I removed # define AVERAGES_DETIDE model is running well
Could you help regarding this issue? Thanks in advance for your help!


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PostPosted: Sat Jul 15, 2017 11:58 am 
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Joined: Mon Apr 28, 2003 5:44 pm
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Location: Rutgers University
Do you have write permission on NetCDF file: ./Projects/RAVI_EXP_8/tide_ravi_exp_8.nc ?

AVERAGES_DETIDE is going to modify that file. ROMS reports it read successfully, so it must be in the correct path. But opening it to write there is a problem.

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PostPosted: Sun Jul 16, 2017 5:16 am 
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Joined: Thu Jan 08, 2015 11:16 pm
Posts: 24
Location: iit delhi
Thank you so much for your kind reply.

Could you tell me how to make write permission in existing netcdf of tide forcing file.

and how to check it whether it has writing permission or not.


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PostPosted: Mon Jul 17, 2017 10:03 am 
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Joined: Thu Jan 08, 2015 11:16 pm
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Location: iit delhi
Now, I am getting following error

GET_NGFLD - tidal period
(Min = 2.19720215E+04 Max = 2.38071489E+06)
GET_2DFLD - tidal elevation amplitude
(Min = 0.00000000E+00 Max = 1.64313322E+00)
GET_2DFLD - tidal elevation phase angle
(Min = -2.86857319E+00 Max = 1.06235184E+01)
GET_2DFLD - tidal current inclination angle
(Min = 0.00000000E+00 Max = 6.28318242E+00)
GET_2DFLD - tidal current phase angle
(Min = 0.00000000E+00 Max = 6.28318375E+00)
GET_2DFLD - maximum tidal current, ellipse major axis
(Min = 0.00000000E+00 Max = 7.56411946E-01)
GET_2DFLD - minimum tidal current, ellipse minor axis
(Min = -2.30937586E-01 Max = 2.50106657E-01)

DEF_VAR - unable to define variable: Hcount
in NetCDF file: ./Projects/TACLOBAN/tide_frc.nc

Please suggest me regarding this issue


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PostPosted: Wed Jul 19, 2017 12:19 am 
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Joined: Mon Nov 28, 2016 5:11 pm
Posts: 1
Location: National Marine Environmental Monitoring Center
prakash22 wrote:
Now, I am getting following error

GET_NGFLD - tidal period
(Min = 2.19720215E+04 Max = 2.38071489E+06)
GET_2DFLD - tidal elevation amplitude
(Min = 0.00000000E+00 Max = 1.64313322E+00)
GET_2DFLD - tidal elevation phase angle
(Min = -2.86857319E+00 Max = 1.06235184E+01)
GET_2DFLD - tidal current inclination angle
(Min = 0.00000000E+00 Max = 6.28318242E+00)
GET_2DFLD - tidal current phase angle
(Min = 0.00000000E+00 Max = 6.28318375E+00)
GET_2DFLD - maximum tidal current, ellipse major axis
(Min = 0.00000000E+00 Max = 7.56411946E-01)
GET_2DFLD - minimum tidal current, ellipse minor axis
(Min = -2.30937586E-01 Max = 2.50106657E-01)

DEF_VAR - unable to define variable: Hcount
in NetCDF file: ./Projects/TACLOBAN/tide_frc.nc

Please suggest me regarding this issue


Try cover the current tide forcing file with the original one which you have used when you tried to run your case the first time.


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PostPosted: Thu Jul 20, 2017 11:35 am 
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Joined: Thu Jan 08, 2015 11:16 pm
Posts: 24
Location: iit delhi
hi jkoceans11,


I am also facing similar problem like you (Zeta_detide value is too large).

Did you resolve or understand the problem? If yes than Could you tell me how to resolve this issue.


With regards
-Ravi


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PostPosted: Wed Aug 08, 2018 11:35 pm 
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Joined: Tue Aug 21, 2007 5:44 pm
Posts: 158
Location: Jeju National University
Regarding this issue,
please give definition to your tide file with all available point when you build a tide file(say u,v,rho,psi dimension).

-JH


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