Search found 24 matches

by rtopper
Fri Jun 10, 2016 9:51 am
Forum: ROMS Installation
Topic: Blowing-up: Saving latest model state into RESTART file
Replies: 11
Views: 10158

Re: Blowing-up: Saving latest model state into RESTART file

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 momentum....
by rtopper
Fri Apr 22, 2016 10:38 am
Forum: ROMS Tools and Techniques
Topic: problem of roms_zview roms_bview and roms_quivergrd
Replies: 3
Views: 4374

Re: problem of roms_zview roms_bview and roms_quivergrd

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_14...
by rtopper
Fri Apr 15, 2016 3:31 pm
Forum: ROMS Bugs
Topic: Bug with time-dependent bathymetry and PERFECT_RESTART
Replies: 0
Views: 5584

Bug with time-dependent bathymetry and PERFECT_RESTART

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 issue ...
by rtopper
Sun Apr 10, 2016 8:57 am
Forum: ROMS Discussion
Topic: Errors when computing DAMEE 4 testcase
Replies: 3
Views: 2833

Re: Errors when computing DAMEE 4 testcase

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.
by rtopper
Wed Apr 06, 2016 12:37 pm
Forum: ROMS Problems
Topic: Post subject: Error while processing Climatology multi-file
Replies: 10
Views: 8563

Re: Post subject: Error while processing Climatology multi-f

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'); ne...
by rtopper
Wed Apr 06, 2016 8:37 am
Forum: ROMS Problems
Topic: Post subject: Error while processing Climatology multi-file
Replies: 10
Views: 8563

Re: Post subject: Error while processing Climatology multi-f

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.
by rtopper
Wed Jan 27, 2016 4:23 pm
Forum: ROMS Discussion
Topic: question about SSH
Replies: 3
Views: 2230

Re: question about SSH

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.
by rtopper
Tue Dec 22, 2015 9:11 am
Forum: ROMS Tools and Techniques
Topic: tide
Replies: 2
Views: 3648

Re: tide

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. Most of you...
by rtopper
Mon Aug 03, 2015 12:47 pm
Forum: ROMS Problems
Topic: ROMS/TOMS - Blows up ................ exit_flag: 1
Replies: 2
Views: 4352

Re: ROMS/TOMS - Blows up ................ exit_flag: 1

- 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 = -2.581...
by rtopper
Fri Jun 26, 2015 11:21 am
Forum: ROMS Installation
Topic: Code optimization on a Cray XC30
Replies: 0
Views: 2285

Code optimization on a Cray XC30

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 compiles ...
by rtopper
Wed May 20, 2015 10:19 am
Forum: ROMS Usage
Topic: very early blowing_up
Replies: 2
Views: 2757

Re: very early blowing_up

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 and...
by rtopper
Fri May 15, 2015 10:09 am
Forum: ROMS Tools and Techniques
Topic: Bathymetry smoothing schemes
Replies: 4
Views: 6512

Re: Bathymetry smoothing schemes

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.
by rtopper
Fri May 15, 2015 8:40 am
Forum: ROMS Discussion
Topic: restart fail multi-part file case
Replies: 2
Views: 2207

Re: restart fail multi-part file case

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 DO ifi...
by rtopper
Tue May 05, 2015 9:13 am
Forum: ROMS Tools and Techniques
Topic: Problem of "Undefined function or variable "fcn"." in RNT
Replies: 7
Views: 9244

Re: Problem of "Undefined function or variable "fcn"." in RN

Instructions and answers to all your questions related to the nctoolbox are here:
http://nctoolbox.github.io/nctoolbox
by rtopper
Mon Apr 13, 2015 11:51 am
Forum: ROMS Discussion
Topic: Restart
Replies: 4
Views: 2225

Re: Restart

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) ?
by rtopper
Tue Apr 07, 2015 3:20 pm
Forum: ROMS Tools and Techniques
Topic: Problem of "Undefined function or variable "fcn"." in RNT
Replies: 7
Views: 9244

Re: Problem of "Undefined function or variable "fcn"." in RN

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 agai...
by rtopper
Thu Apr 02, 2015 2:23 pm
Forum: ROMS Discussion
Topic: i can't run model
Replies: 3
Views: 3258

Re: i can't run model

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 (star...
by rtopper
Thu Apr 02, 2015 1:20 pm
Forum: ROMS Tools and Techniques
Topic: Problem of "Undefined function or variable "fcn"." in RNT
Replies: 7
Views: 9244

Re: Problem of "Undefined function or variable "fcn"." in RN

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
by rtopper
Thu Apr 02, 2015 1:00 pm
Forum: ROMS Installation
Topic: Roms installation Steps
Replies: 49
Views: 33502

Re: Roms installation Steps

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
by rtopper
Wed Mar 04, 2015 9:52 am
Forum: ROMS Usage
Topic: blowing up after run 4285 time-steps
Replies: 2
Views: 2601

Re: blowing up after run 4285 time-steps

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 and Haid...
by rtopper
Tue Mar 03, 2015 11:36 am
Forum: ROMS Discussion
Topic: extrapolation
Replies: 5
Views: 4544

Re: extrapolation

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
by rtopper
Tue Mar 03, 2015 11:30 am
Forum: ROMS Usage
Topic: very early blowing-up
Replies: 5
Views: 4052

Re: very early blowing-up

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 M...