Ocean Modeling Discussion

backkom

Hi all, I have reported this error before in ROMS_Problem. I got an abnormal stop of my ROMS application, with error prompt: 247057 OUTPUT - multi-file counter AVG(ng)%load = 3, is greater than Nfiles = 2 dimension 247058 in structure when creating next file: /lustre/home/yaozhigang/Projects/BYS/Out...

backkom

Hi all, I got an abnormal stop of my ROMS application, with error prompt: 247057 OUTPUT - multi-file counter AVG(ng)%load = 3, is greater than Nfiles = 2 dimension 247058 in structure when creating next file: /lustre/home/yaozhigang/Projects/BYS/Out/roms_avg_0003.nc 247059 Incorrect OutFiles logic i...

backkom

Hi, I am trying the latest ROMS package, and got a error when compiling with sediment module. cd /lustre/home/yaozhigang/Projects/Yandong/Build_roms; /opt/intel/compilers_and_libraries_2019.5.281/linux/mpi/intel64/bin/mpiifort -c -fp-model precise -heap-arrays -ip -O3 -traceback -check uninit def_gs...

backkom

Hi, I am trying the latest ROMS svn978 code, by a ROMS + SWAN coupling application, activated by CPP option " #define SWAN_COUPLING, #define NEARSHORE_MELLOR08", but got a error message as follows: $ mpirun -np 20 ./romsM ./Input/coupling_eams_20190730.in > log.20190730 forrtl: severe (194...

backkom

I just checked the official website of ERA-Interim, and found that only four step (03, 06,09,12) are available with for the forecast varaibles such as precipitation and radiation flux, as listed in FAQ: 34. What are the 'steps' for the surface daily fields in ERA-Interim? The ERA-Interim data server...

backkom

Hi lolhsson, It is really glad to get some comments and reply~ I think your estimates for flux average-centered at 03, 09, 15 and 21 make sense, and I'm writing some scripts to convert my forcing files accordingly. I'm not positive if we can get away with using 00 and 12 directly; they are ... insta...

backkom

Hi all, I have some doubts about ERA-Interim datasets after going through some posts in this forum, and wish someone can give me some guidance and comments. The ERA-Interim data used comes from http://rda.ucar.edu/datasets/ds627.2/, 6 hourly, thus for the forecast variables, such as precipitation an...

backkom

Hi Sasha, I am really appreciated for your kind help on this topic~. P.S.: Your Minimum and Maximum barotropic Curant numbers are slightly different: 0.16 and 017 respectively, but I believe that this is flat bottom configuration. So why they are different? Since the model domain for my ideal test c...

backkom

What is your barotropic gravity wave Courant number in these experiments? Cg_max = ? Hi Sasha, Many thanks for your reply~ The Courant number for all thress experiments are as follows: (1) Control Run: 878: Minimum barotropic Courant Number = 1.01459937E-01 879: Maximum barotropic Courant Number = ...

backkom

Hi all, I want to know if there is any significant improvement in the artificial reflections, which comes from the improper setting of OBC, by using the latest combination: Chapman explicit (free surface) + Shchepetkin (2D momentum). So I made a simple test as follows: 1. Control Run: Experiment 1 A...

backkom

fengfengsister wrote:Dear all,
How to set a zero gradient condition at the sea boundary in ROMS?

Thank you very much.

Do you mean the Gradient boundary condition (Gra), which you can specify in your .in file.

backkom

Hi all, I want to know if there is anyone else has met the error described as follows: ROMS Reversion: 667 Operating system : Linux CPU/hardware : x86_64 Compiler system : ifort Compiler command : /opt/mpi/intel/mvapich2-1.8.1/bin/mpif90 Compiler flags : -heap-arrays -fp-model precise -ip -O3 -free ...

backkom

Hi, Kate

Thanks so much for your kind reply.

It works after I removed the 2th dimension: "ng" from variables: TIDE(ng)%Vid in def_tide.F. I have already create a ticket to ROMS track.

Again thanks for your help.

Best regards.

backkom

Hi all, I got some compiling problem :? and hope that anyone has the experience can give me some guidance. My ROMS version is 561. Since there are more than one tidal components included in my tidal forcing file, I am trying to turn on the cpp option: AVERAGES_DETIDE to remove the tidal signal from ...

backkom

Hi,kate
I carefully check the mask_rho,mask_u,mask_v,just like what you said,there are some wrong mask points in mask_u and mask_v. and model seems works well now.
Thanks again for your kind help,kate

!

backkom

kate,thanks for your reply!
my mask is generated by uvp_mask.m,and then I manually edit using editmask.m. the code is as follows:

Code: Select all

[Mp,Lp]=size(mask_rho);
M=Mp-1;
L=Lp-1;
%
mask_v=mask_rho(1:M,:).*mask_rho(2:Mp,:);
mask_u=mask_rho(:,1:L).*mask_rho(:,2:Lp);
mask_p=mask_u(1:M,:).*mask_u(2:Mp,:);

backkom

Hi :D , I have a weired blow-up problem :( when ruuning a East china sea application. My domain is 117°-130°E, 24°-41°N, with grid resolution of 2'(about 35000m).my minimum depth is about 5m and maximum depth is 5000m.model is driven only by tidal elevation. Minimum available timestep is 20s by CFL ...

backkom

Hi,everyone When I run a tidal foring application ,something strange happened.It seems that zeta was set to zero periodically. I check variable 'ocean_time' in history file,which has the same error as zeta. Because RAMP_TIDE is used in my header file,the error in ocean_time could result in same erro...

backkom

thanks kate for your kind reply! when runs,the output is as followd: INITIAL: Configuring and initializing forward nonlinear model ... Minimum X-grid spacing, DXmin = 6.93178755E+00 km Maximum X-grid spacing, DXmax = 8.64595367E+00 km Minimum Y-grid spacing, DYmin = 6.94181911E+00 km Maximum Y-grid ...

backkom

Hi,everyone! i want to run a test 2D case only forced by tidal harmonics! the grid,bathy and tidal harmonics are given by external input files while others are described by analitical.but the model results are all zero which indicates the tidal forcing is not imposed,but why??? the header file is gi...

backkom

Hi,kate
here thanks so much for your help!with your help i think i have understand this!
thanks!

backkom

It all depends on what you are planning to do. I plan to do multi-decadal simulations on the Northeast Pacific domain. I do not want to store the tidal boundary conditions on an hourly-basis, so will be using the tidal forcing file. If you are computing an estuary and only planning to run for a few...

backkom

Now, the reason why we provide a full 2D grid of the tides is for analysis, comparisons and detiding purposes. During detiding we need to check the original tidal fields to see if the least-squares fit :arrow: procedure is resolving all the frequencies over a particular time window. and arango,I do...

backkom

hi,arango and kate thanks for your suggestions! but i don not understand why not recommending to put the tidal forcing in the boundary file.for most applications the time interval between barotropic or baroclinic steps are several seconds or minutes,which are far less than the periods of tidal compo...

backkom

kate,thanks for your reply!

backkom

if i prescribe both harmonic constants in the forcing input file and also currents in the boundary file,for example,a inflow along the open boundary, my question is weather or not the boundary currents should be the combination of the tidal forcing and inflow currents? if so ,boundary currents and e...

backkom

kate,thanks very much for your reply! i still have another question about input file.if the tidal forcing file is provided,then what should my boundary file look like? for exmaple,only one south open boundary with onther three close boundary,if i have the forcing file,then the south boundary is not ...

backkom

Hi here i wanna to make a simple test case in which model is only forced by tidal.i have some basic questions about tidal forcing. i have read some posts about this,but i am still not sure about these. 1 .if the tidal forcing could be given in the boundary files? for example,my cases only has one so...

backkom

Thanks kate for your reply!
I wanna to generate all the input files for my own applications. I will try the tools you suggested.
thanks!

backkom

Thanks kate for your help!
i wanna to know which tools is convinent for the pre and post processing tasks for Roms .and the Matlab tools you mentioned is Roms_tools, is it right? or simply the CDL packages in trunk\Data\ROMS\CDL?

thanks !

backkom

Since you could find file "Makefile.cray",it seems that you use an old roms version. Use Makefile.gfortran if you have this file,or change Makefile.ifort or Makefile.pgi for the gfortran compiler. Generally,The developers advise you to update to the newest version.The new version has a ne...

backkom

Since you could find file "Makefile.cray",it seems that you use an old roms version. Use Makefile.gfortran if you have this file,or change Makefile.ifort or Makefile.pgi for the gfortran compiler. Generally,The developers advise you to update to the newest version.The new version has a ne...

backkom

Hi, i am a newbie to roms and linux,here i have a doubt about the processing packages. i think the packages need to be compiled by make,is it right? there are many makefiles in the packages like Makefile.Cray,my configuration is as follows: os: fedora 9 cc: gcc fc: gfortran but i don't find the Make...

backkom

thanks to kate for your reply ! i guess i have found why the trouble occurs. i made a simple mistake that i download the roms on a windows system while compiling it on a linux system.the line ending difference between two systems perhaps leads to the error. now when i download and compile the roms o...

backkom

i am on a SGI workstation,The SGI workstation's Operating System is SUSE 9.0 which hasn't installed subversion.It has included GNU make 3.8 and perl, v5.8.3 built for ia64-linux-thread-multi. i download roms source code with tortoiseSVN and the netcdf has been installed correctly ,but while compilin...

Ocean Modeling Discussion

Search found 35 matches

Nfiles counter error?

OUTPUT - multi-file counter AVG(ng)%load = 3, is greater than Nfiles = 2 dimension 247058 in structure when c

Possible bugs in def_state.F

variable not properly initialized in ROMS svn978 ?

Re: Doubts about the ERA-Interim

Re: Doubts about the ERA-Interim

Doubts about the ERA-Interim

Re: Doubts about the new OBC combination (Che + Shc)

Re: Doubts about the new OBC combination (Che + Shc)

Doubts about the new OBC combination (Che + Shc)

Re: How the set the zero gradient condition in ROMS?

forrtl: severe (174): SIGSEGV, segmentation fault occurred

Re: Compiler error when turn on AVERAGES_DETIDE

Compiler error when turn on AVERAGES_DETIDE

Re: Blow up when MASKING is activated!

Re: Blow up when MASKING is activated!

Blow up when MASKING is activated!

Error : Ocean_time

Re: Can't add the tidal forcing!

Can't add the tidal forcing!

Re: questions about tidal forcing

Re: questions about tidal forcing

Re: questions about tidal forcing

Re: questions about tidal forcing

Re: questions about tidal forcing

Re: questions about tidal forcing

Re: questions about tidal forcing

questions about tidal forcing

Re: Questions about processing package

Re: Questions about processing package

Re: Questions about processing package

Re: Questions about processing package

Questions about processing package

help:Compiling error