Search found 24 matches
- Thu Aug 13, 2009 2:25 pm
- Forum: ROMS Discussion
- Topic: Spatially Varying Bottom Roughness
- Replies: 4
- Views: 2779
Re: Spatially Varying Bottom Roughness
The original focus on a spatially varying bottom roughness was to pattern it after bottom sediment maps and characteristic roughness lengths. It was felt that a more accurate representation of the bottom roughness would improve the predictability of ROMS within an esturary such as Delaware River and...
- Mon Jun 02, 2008 3:35 pm
- Forum: ROMS Discussion
- Topic: Modifying Makefile for ROMS3.0
- Replies: 4
- Views: 2756
I recopied myDBROMS.1 to myDBROMS.1.1 and removed the Build and Bin directories which I no longer needed. I modified the necessary routines and the makefile.robc.mpi worked perfectly. I can only think that the diff did not pick up some minor character difference in the files which caused gmake to fa...
- Fri May 30, 2008 6:16 pm
- Forum: ROMS Discussion
- Topic: Modifying Makefile for ROMS3.0
- Replies: 4
- Views: 2756
I have successfully implemented this strategy and now have under myDBROMS.1 several /Bin and /Build files. With /Nonlinear I have several versions of set_vbc.F and use the makefile on the appropriate file. I wanted to eliminate some of the /Bin and Build files, so I copied myDBROMS.1 to myDBROMS.2 a...
- Fri Apr 11, 2008 3:22 pm
- Forum: ROMS Discussion
- Topic: Using LF95 Compiler with ROMS in serial mode
- Replies: 1
- Views: 1471
Using LF95 Compiler with ROMS in serial mode
Is it possible to use LF95 compiler with ROMS in serial mode. Any suggestions would be much appreciated.
- Fri Apr 11, 2008 1:27 pm
- Forum: ROMS Discussion
- Topic: FSCLAMPED OBC
- Replies: 12
- Views: 6749
- Fri Apr 11, 2008 1:19 pm
- Forum: ROMS Discussion
- Topic: FSCLAMPED OBC
- Replies: 12
- Views: 6749
- Fri Feb 08, 2008 2:26 pm
- Forum: ROMS Discussion
- Topic: FSCLAMPED OBC
- Replies: 12
- Views: 6749
John and Kate: Many THANKS for your replies. I know you both probably work differently with different software, but would each of you give me more information on exactly how you debug the code? John.....I believe you write out the restart fields at more frequent intervals into the restart netcdf fil...
- Fri Feb 08, 2008 2:05 pm
- Forum: ROMS Discussion
- Topic: FSCLAMPED OBC
- Replies: 12
- Views: 6749
- Wed Feb 06, 2008 8:05 pm
- Forum: ROMS Discussion
- Topic: FSCLAMPED OBC
- Replies: 12
- Views: 6749
With respect to the debug snippets, I was thinking along the lines of the following approach. For each major cppdep option in the code, one writes a debug snippet, which is itself a cppdef option, which can be selected to further diagnose problems. For WET_DRY one has WET_DRY_SNIP to further debug t...
- Wed Feb 06, 2008 7:46 pm
- Forum: ROMS Discussion
- Topic: FSCLAMPED OBC
- Replies: 12
- Views: 6749
Thanks for the information, I will further study the problem. As a general rule, as I understand your postings, if the model blows up Nans are generated for total energies and a restart file is written in netCDF, which probably contains a large number of Nans . As such it cannot be used to diagnose ...
- Wed Feb 06, 2008 5:59 pm
- Forum: ROMS Discussion
- Topic: ROMS Debug Approach
- Replies: 6
- Views: 4724
- Wed Feb 06, 2008 5:45 pm
- Forum: ROMS Discussion
- Topic: ROMS Debug Approach
- Replies: 6
- Views: 4724
In diag.F, I believe one can add after: Compute and report out volume averaged kinetic, potential total energy, and volume. In 3d inner loop: if ( ABS(u(i,j,k,nstp)) .gt. 10.0 .or. ABS(v(i,j,k,nstp)) .gt. 10.0)exit_flag=1 In 2d inner loop: if ( ABS(ubar(i,j,krhs)) .gt. 10.0 .or. ABS(vbar(i,j,krhs)) ...
- Wed Feb 06, 2008 5:23 pm
- Forum: ROMS Discussion
- Topic: FSCLAMPED OBC
- Replies: 12
- Views: 6749
- Tue Feb 05, 2008 3:31 pm
- Forum: ROMS Discussion
- Topic: FSCLAMPED OBC
- Replies: 12
- Views: 6749
FSCLAMPED OBC
FSCLAMPED Cases: For all cases DT=20s ndtfast=20 with EAST, WEST, and SOUTH boundaries treated the same. NORTH boundary is a solid wall. The following cpp options were used for each of the FSCLAMPED open boundary cases. ATM_PRESS Impose atmospheric pressure onto sea surface. ANA_BSFLUX Analytical ki...
- Fri Feb 01, 2008 5:23 pm
- Forum: ROMS Discussion
- Topic: Modifying ROMS
- Replies: 3
- Views: 2435
Thanks....John.....I will follow this approach. When I had names such as wrt_station.F and wrt_station.org.F, even though I touched wrt_station.F to make sure it was the most recent version and the one I wanted to use, the makefile would create the sfmakedependcy file such that the wrt_station.org.F...
- Fri Feb 01, 2008 3:05 pm
- Forum: ROMS Discussion
- Topic: Modifying ROMS
- Replies: 3
- Views: 2435
Modifying ROMS
I am adding two new cppdef options: 1. Z0_SVAR----spatially variable botton roughness, z0 2. MET_OUT----write wind and atm pressure to station and history files To accomplish this I have had to modify several of the *.F files. I have for example set_vbc.F and set_vbc_org.F for the modified and origi...
- Thu Jan 31, 2008 9:04 pm
- Forum: ROMS Discussion
- Topic: Modifying Makefile for ROMS3.0
- Replies: 4
- Views: 2756
Modifying Makefile for ROMS3.0
I am using ROMS 3.0 and have mpi turned on. I have a makefile called makefile.mpi which selects DELAWARE_BAY and within /Include/delaware_bay.h resides with some cppdef options. I now have created a new application termed delaware_bay_robc.h (reduced open boundary conditions) in /Include. I wish to ...
- Mon Jan 07, 2008 6:52 pm
- Forum: ROMS Discussion
- Topic: Indexing in ROMS
- Replies: 5
- Views: 6955
Hi All, Kate....Thanks for the picture. I am assuming that the netCDF files in ROMS read and write information only in the white area of the figure. This also appears to be further documented in the C-grid figure within mod_param.F. For RHO point information, one goes from 1, Lm and 1, Mm Lm is deno...
- Thu Jan 03, 2008 7:47 pm
- Forum: ROMS Discussion
- Topic: Indexing in ROMS
- Replies: 5
- Views: 6955
So are these diagrams correct? ------U(i,j)..................Rho(i,j).................U(i+1,j) UFLOW..............Rmask(i,j)..............Umask(i+1,j) ------U(i,j)...................Rho(i,j).................U(i+1,j) Umask(i,j)............Rmask(i,j)................-UFLOW Where UFLOW is the discharge ...
- Thu Jan 03, 2008 5:56 pm
- Forum: ROMS Discussion
- Topic: Indexing in ROMS
- Replies: 5
- Views: 6955
Indexing in ROMS
How are the u and v masks created from the rho mask. It appears that u and v masks are to the right and top of the computational stencil. -----------UMASK(i-1,j).......RHOMASK(i,j).........UMASK(i,j)------------ Mask Analogous for the VMASK with the role of i and j interchanged. In the computational...
- Wed Jan 02, 2008 2:09 pm
- Forum: ROMS Discussion
- Topic: ROMS Debug Approach
- Replies: 6
- Views: 4724
In reviewing the code in diag.F, I note that if either the kinetic or potential energy summed over the domain is N or n or * (exceeds 8 places) then the exit flag 1 is triggered and the model Blows Up. I will consider adding a supplemental check, whereby if either a u or v velocity component exceeds...
- Mon Dec 31, 2007 6:42 pm
- Forum: ROMS Discussion
- Topic: ROMS Debug Approach
- Replies: 6
- Views: 4724
ROMS Debug Approach
Hi All, As a new user to ROMS, I was wondering what the approach was to debug the model blowing up. I have recently been running an application for the Delaware Estuary and obtained: ROMS/TOMS -Blows Up .....................exit_flag: 1 Saving the latest model state into RESTART file MAIN: Abnormal ...
- Mon Dec 10, 2007 8:19 pm
- Forum: ROMS Discussion
- Topic: Spatially Varying Bottom Roughness
- Replies: 4
- Views: 2779
Spatially Varying Bottom Roughness
Thanks Kate....I have now modified the varinfo.dat file. I selected
Input/Output and would like to echo the bottom roughness field after it is read in, so I will work on that next. Thanks again....Dick
Input/Output and would like to echo the bottom roughness field after it is read in, so I will work on that next. Thanks again....Dick
- Mon Dec 10, 2007 7:46 pm
- Forum: ROMS Discussion
- Topic: Spatially Varying Bottom Roughness
- Replies: 4
- Views: 2779
Spatially Varying Bottom Roughness
Hi....I am trying to add into ROMS a spatially varying bottom roughness, Zo. The approach is to develop this as a field similar to bathymetry within the grid generation procedure and include a field called zor at the model RHO points within the grid netCDF file. I have modified the following routine...