Hi modelers:
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I'm working with roms-3.7 and when I run my model,it blow up at seven time steps. If I change the passage of time, I only get a blow up delayed.
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I will add my out.txt, my ocean.in and my .h file.
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If somebody can help me I will be so gratefull for ever
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Thanks in advance.
Mar.Mo.
I've written the generic response here. Perhaps you should tell us what you are trying to achieve with a periodic channel and wetting and drying - but look to see how it's going bad first.
Hi!
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Many thanks to both for your help.
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I had smoothing the grid ... step by step to the extent that I smoothing at 2000m deep, because I only have interesting in the first 200 m of the surface, but I still have the same problem ...
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My Beckmann value still been 9.943090e-1 although the grid is so smoothing
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F LuvSrc Turning OFF momentum point Sources/Sinks.
F LwSrc Turning OFF volume influx point Sources/Sinks.
F LtracerSrc(01) Turning OFF point Sources/Sinks on tracer 01: temp
F LtracerSrc(02) Turning OFF point Sources/Sinks on tracer 02: salt
F LsshCLM Turning OFF processing of SSH climatology.
F Lm2CLM Turning OFF processing of 2D momentum climatology.
F Lm3CLM Turning OFF processing of 3D momentum climatology.
F LtracerCLM(01) Turning OFF processing of climatology tracer 01: temp
F LtracerCLM(02) Turning OFF processing of climatology tracer 02: salt
F LnudgeM2CLM Turning OFF nudging of 2D momentum climatology.
F LnudgeM3CLM Turning OFF nudging of 3D momentum climatology.
F LnudgeTCLM(01) Turning OFF nudging of climatology tracer 01: temp
F LnudgeTCLM(02) Turning OFF nudging of climatology tracer 02: salt
T Hout(idFsur) Write out free-surface.
T Hout(idUbar) Write out 2D U-momentum component.
T Hout(idVbar) Write out 2D V-momentum component.
T Hout(idUvel) Write out 3D U-momentum component.
T Hout(idVvel) Write out 3D V-momentum component.
T Hout(idWvel) Write out W-momentum component.
T Hout(idOvel) Write out omega vertical velocity.
T Hout(idTvar) Write out tracer 01: temp
T Hout(idTvar) Write out tracer 02: salt
T Dout(M2rate) Write out 2D momentum acceleration.
T Dout(M2pgrd) Write out 2D momentum pressure gradient.
T Dout(M2fcor) Write out 2D momentum Coriolis force.
T Dout(M2hadv) Write out 2D momentum horizontal advection.
T Dout(M2xadv) Write out 2D momentum horizontal X-advection.
T Dout(M2yadv) Write out 2D momentum horizontal Y-advection.
T Dout(M2hvis) Write out 2D momentum horizontal viscosity.
T Dout(M2xvis) Write out 2D momentum horizontal X-viscosity.
T Dout(M2yvis) Write out 2D momentum horizontal Y-viscosity.
T Dout(M2sstr) Write out 2D momentum surface stress.
T Dout(M2bstr) Write out 2D momentum bottom stress.
T Dout(M3rate) Write out 3D momentum acceleration.
T Dout(M3pgrd) Write out 3D momentum pressure gradient.
T Dout(M3fcor) Write out 3D momentum Coriolis force.
T Dout(M3hadv) Write out 3D momentum horizontal advection.
T Dout(M3xadv) Write out 3D momentum horizontal X-advection.
T Dout(M3yadv) Write out 3D momentum horizontal Y-advection.
T Dout(M3vadv) Write out 3D momentum vertical advection.
T Dout(M3hvis) Write out 3D momentum horizontal viscosity.
T Dout(M3xvis) Write out 3D momentum horizontal X-viscosity.
T Dout(M3yvis) Write out 3D momentum horizontal Y-viscosity.
T Dout(M3vvis) Write out 3D momentum vertical viscosity.
T Dout(iTrate) Write out rate of change of tracer 01: temp
T Dout(iTrate) Write out rate of change of tracer 02: salt
T Dout(iThadv) Write out horizontal advection, tracer 01: temp
T Dout(iThadv) Write out horizontal advection, tracer 02: salt
T Dout(iTxadv) Write out horizontal X-advection, tracer 01: temp
T Dout(iTxadv) Write out horizontal X-advection, tracer 02: salt
T Dout(iTyadv) Write out horizontal Y-advection, tracer 01: temp
T Dout(iTyadv) Write out horizontal Y-advection, tracer 02: salt
T Dout(iTvadv) Write out vertical advection, tracer 01: temp
T Dout(iTvadv) Write out vertical advection, tracer 02: salt
T Dout(iThdif) Write out horizontal diffusion, tracer 01: temp
T Dout(iThdif) Write out horizontal diffusion, tracer 02: salt
T Dout(iTxdif) Write out horizontal X-diffusion, tracer 01: temp
T Dout(iTxdif) Write out horizontal X-diffusion, tracer 02: salt
T Dout(iTydif) Write out horizontal Y-diffusion , tracer 01: temp
T Dout(iTydif) Write out horizontal Y-diffusion , tracer 02: salt
T Dout(iTvdif) Write out vertical diffusion, tracer 01: temp
T Dout(iTvdif) Write out vertical diffusion, tracer 02: salt
Power filter parameters, Fgamma, gamma = 0.28400 0.18933
Metrics information for Grid 01:
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Minimum X-grid spacing, DXmin = 0.00000000E+00 km
Maximum X-grid spacing, DXmax = 1.24434963E+01 km
Minimum Y-grid spacing, DYmin = 0.00000000E+00 km
Maximum Y-grid spacing, DYmax = 1.10642938E+01 km
Minimum Z-grid spacing, DZmin = 0.00000000E+00 m
Maximum Z-grid spacing, DZmax = 2.44706031E+02 m
Minimum barotropic Courant Number = 1.41636580E-02
Maximum barotropic Courant Number = 1.70393192E-01
Maximum Coriolis Courant Number = 1.27838438E-02
Basin information for Grid 01:
Maximum grid stiffness ratios: rx0 = 9.900498E-01 (Beckmann and Haidvogel)
rx1 = 1.521965E+01 (Haney)
Allocation and array initialization .............. 26.134 (66.6193 %)
Ocean state initialization ....................... 2.067 ( 5.2697 %)
Reading of input data ............................ 0.000 ( 0.0000 %)
Processing of input data ......................... 0.005 ( 0.0122 %)
Processing of output time averaged data .......... 0.599 ( 1.5270 %)
Computation of vertical boundary conditions ...... 0.003 ( 0.0064 %)
Computation of global information integrals ...... 0.042 ( 0.1072 %)
Writing of output data ........................... 0.085 ( 0.2171 %)
Model 2D kernel .................................. 3.614 ( 9.2137 %)
2D/3D coupling, vertical metrics ................. 0.122 ( 0.3108 %)
Omega vertical velocity .......................... 0.064 ( 0.1640 %)
Equation of state for seawater ................... 0.130 ( 0.3311 %)
GLS vertical mixing parameterization ............. 1.224 ( 3.1214 %)
3D equations right-side terms .................... 0.287 ( 0.7310 %)
3D equations predictor step ...................... 0.742 ( 1.8919 %)
Pressure gradient ................................ 0.123 ( 0.3133 %)
Harmonic mixing of tracers, S-surfaces ........... 0.088 ( 0.2240 %)
Harmonic stress tensor, S-surfaces ............... 0.099 ( 0.2525 %)
Corrector time-step for 3D momentum .............. 0.499 ( 1.2710 %)
Corrector time-step for tracers .................. 0.379 ( 0.9672 %)
Total: 36.307 92.5510
All percentages are with respect to total time = 39.229
ROMS/TOMS - Output NetCDF summary for Grid 01:
number of time records written in HISTORY file = 00000001
number of time records written in RESTART file = 00000001
ROMS/TOMS: DONE... Wednesday - June 14, 2017 - 5:17:35 PM
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I have no idea why the problem continue... Do you think can help me with this problem?
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Thanks in advance =)
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Mar.Mo.
Attachments
Last edited by Scarlett on Wed Jun 14, 2017 10:49 pm, edited 1 time in total.
Hi Kate:
So many thanks for your help, it was so useful, it run at 20 m deep!
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I've been doing some sensitive test, and It's run at 180m maximum deep. But, What would happen if I want to considered a realistic bathymetry?How can I avoid this inconsistency, without smoothing so much the bathymetry? What do I need to considered?
I want to use 500 m deep
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I'm working with:
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r=0.5
n_filter_deep_topo=2
n_filter_final=2
theta_s=5
theta_b=.4
Tcline=10
N=32
Vtransform == 2
Vstretching == 4
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Could you help me? Annex figure with real bathymetry
Thanks in advance.
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Mar.Mo.
The way to model a steeper bathymetry is more horizontal resolution. With bathymetry smoothing there are trade-offs between realistic geometry and good model behavior. You just have to think about what you are resolving and what you need to resolve to get the answers you want. Plus try it and see.