Ocean Modeling Discussion

7.0000E+00 Tnudg(01) Nudging/relaxation time scale (days)
for tracer 01: temp
7.0000E+00 Tnudg(02) Nudging/relaxation time scale (days)
for tracer 02: salt
7.0000E+00 Znudg Nudging/relaxation time scale (days)
for free-surface.
7.0000E+00 M2nudg Nudging/relaxation time scale (days)
for 2D ...

1)

Requested date 28-Oct-2012 01:00:00 is not between the dates in
scs_1_his.nc which are 13-Dec-0154 00:00:00 to
15-Dec-0154 00:00:00
Error in roms_zview (line 54)
if nargin == 0

Output argument "thegrid" (and maybe others) not
assigned during call to
"/home/limaolin/model/COAWST_140823 ...

Strictly speaking it is a bug, but it only affects users with a really specific combination of options.

When one sets LcycleRST == F in combination with SED_MORPH and PERFECT_RESTART, ROMS tries to write bath to an index exceeding the dimension bounds ( three ) at the fourth WRT_RST. It is an ...

The error is pretty self-explanatory. You've defined more than one horizontal and vertical advection scheme for tracers in your .h file.

Look through your .h file and make sure there is just one TS_*HADVECTION and one TS_*VADVECTION option defined.

It seems you are using COAWST. Which means you are likely using roms_master_climatology_coawst_mw.m to create clm, bdy, and ini files.

In this matlab script the clm file is created first with all its time variables. In updatclim_coawst_mw.m you should see:
tempid=netcdf.inqVarID(RN,'ocean_time ...

ocean_time = 4858099200, 4858185600, 4858272000, 4858358400, 4858444800,
4858531200 ;

This is clearly the problem. Check if the calculation of ocean_time is different from zeta_time/v2d_time/etc, because these other time variables seem to be what you want.

A quick search for similar questions on the forum will lead you here:
viewtopic.php?f=26&t=3953&p=15147&hilit ... ART#p15147

... an old topic that answers your question and directs you to https://www.myroms.org/wiki/tide_start for more details.

Have you already checked the ROMS wiki and manual?

https://www.myroms.org/wiki/Tidal_Forcing
https://github.com/kshedstrom/roms_manual/blob/master/roms_manual.pdf

The wiki and manual are usually the first thing you should check if you have questions about the basic functionality of ROMS ...

- potential temperature
(Min = -4.22937750E+06 Max = 6.49815160E+07)
- salinity
(Min = -2.62840350E+06 Max = 2.62479775E+06)

Basin information for Grid 01:

Maximum grid stiffness ratios: rx0 = 1.157955E+02 (Beckmann and Haidvogel)
rx1 = 8.751518E+04 (Haney)

Initial basin volumes: TotVolume = -2 ...

Dear all,

I've recently gained access to a Cray XC30 machine and am trying to run COAWST experiments on it. I'm posting my question here instead of on the COAWST forum because I'm only using the ROMS component of COAWST for now.

With the Cray fortran compiler and -O3 optimization the model ...

Smoothing your bathymetry will probably solve your problem.
Your current rx0 and rx1 values are too high:
Maximum grid stiffness ratios:
rx0 = 8.101426E-01 (Beckmann and Haidvogel)
rx1 = 2.460969E+01 (Haney)

If you search this forum you'll find that rx0 values are usually recommended to be < 0.2 ...

A linear programming matlab code can be found here.
However, these matlab scripts seem to be 6 years old already. For instance, Vstretching = 4 is not supported.

I had exactly the same problem with COAWST a couple of weeks ago. The problem is however not the get_cycle routine but check_multifile.

Lines 74-88 of check_multifile.F in ROMS/Utilities:
! Set the appropriate file counter to use during initialization or
! restart.
!
Fcount=0
IF (Lcheck) THEN ...

Instructions and answers to all your questions related to the nctoolbox are here:
http://nctoolbox.github.io/nctoolbox

Easygrid:
https://www.myroms.org/wiki/index.php/easygrid

Maybe a silly suggestion, but I know I've forgotten this a couple of times ...
Could it be that you've forgotten to move the ocean_rst.nc file to your header/project dir (the directory where you have your .h file) ?

Sorry for the delay. Here is the relevant part of the FAQ:

6. What about the NetCDF Toolbox?

I did not write it and have not supported it since 2007. I continually get asked about it, so if you really need it badly, you can get a version here on the condition that you never ever ask me about it ...

The input file for zeta_west doesn't contain data for time = 55927.0000 (your start time) as indicated in your output:

SET_NGFLD - current model time exceeds ending value for variable: zeta_west
TDAYS = 55927.0000
Data Tmin = 55927.0000 Data Tmax = 56292.0000 <-- required input data time range ...

Check point 9 in the MexCDF FAQ:

9. Why do I get Undefined function 'fcn' when trying to use ncmex?

You are trying to use the NetCDF Toolbox, which I do not support. See the previous three items.

http://mexcdf.sourceforge.net/faq.php

Have you already checked the ROMS manual?
http://www.people.arsc.edu/~kate/ROMS/manual_2012.pdf

And the ROMS Wiki? For example the 'Getting started' section
https://www.myroms.org/wiki/index.php/Getting_Started

... and the 'Tutorials' section
https://www.myroms.org/wiki/index.php/Tutorials

Minimum Z-grid spacing, DZmin = -2.21806494E+00 m
Maximum Z-grid spacing, DZmax = 8.10618752E+02 m

Your bathymetry seems to contain some negative depth values. Unless you specify the WET_DRY CPP option, the bathymetry cannot have values of 0 or negative values.

rx0 = 5.842748E-01 (Beckmann ...

You can also use this function:
http://de.mathworks.com/help/matlab/ref ... class.html

With examples of how to use it for extrapolation here:
http://de.mathworks.com/help/matlab/mat ... ation.html

Minimum X-grid spacing, DXmin = 8.18461090E+00 km
Maximum X-grid spacing, DXmax = 8.96932936E+00 km
Minimum Y-grid spacing, DYmin = 8.80829488E+00 km
Maximum Y-grid spacing, DYmax = 9.65281096E+00 km
Minimum Z-grid spacing, DZmin = 0.00000000E+00 m
Maximum Z-grid spacing, DZmax = 4.92073844E+02 m ...