Ocean Modeling Discussion

Dear easygrid users,

I rewrote it for using snctools user Matlab R2010b.
Please use it and find bugs for future use.

Dear John,

I am using ROMS-SWAN coupling model to study large scale circulation in Osaka bay, Japan. I'm also applying ROMS-SWAN coupling model to storm surge problem in Japan.

Kate,

I've put LaTeX and figures on
http://www.oceanwave.jp/tmp/roms_obc.tgz
I'm wondering you could modify it to wiki.
Sorry for very late reply.

Dear jcwarner, My ana_srflux.h located User/Functions was not the most recent version. After copying it from ROMS/Functions, I could compile oceanM. I'm sorry for my bonehead mistake and I appreciate for your suggestions. i don't think this has anything to do with the swan coupling. Make sure you ...

There is unnecessary parenthesis ")" in line 922, gls_corstep.F (v168).

!svn $Id: gls_corstep.F 168 2008-03-18 20:12:43Z arango $
& Wave_dissip(i,j))
should be corrected as
& Wave_dissip(i,j)

Dear ROMS people, I'm facing problem using BULK_FLUX options with SWAN coupling. I got following error messages may be related to ana_srflux.h when I define both bulk_flux and swan_coupling options together. Does anybody solve this problem ...

Now I found my mistake. The atm pressure term P(i,j,N(ng)) = P(i,j,N(ng)) + 100._r8*Pair(i,j)/rho0 was correctly worked but my open boundary conditions for storm surge condition got mass flux abnormally. I checked above scheme qualitatively and it works pretty fine. I appreciate kate and other ...

Dear kate and zhang

Thank you for valuable information. I didn't know the unit
difference between Pair and P. The ATM_PRESS is useful because
it looks better than using BULK_FLUXES.

I will play this modification and check.

Dear Kate, I tried to include atmospheric pressure force to the free surface for storm surge in nearshore region. I put the atmospheric pressure contribution just after the following sentence P(i,j,N(ng))=GRho0*z_w(i,j,N(ng))+ & & GRho*(rho(i,j,N(ng))+cff2)* & & (z_w(i,j,N(ng))-z_r(i,j,N(ng))) as P ...

I had similar questions for OBC but there was no documant about it. I did simple numerical test with analytical tidal forcing and here is the result:
http://www.oceanwave.jp/research/ROMS/roms_obc.pdf

NM

Here is summary of OBC for simple boundary conditions.
-> http://www.oceanwave.jp/research/ROMS/roms_obc.pdf
The best combinations for M2 educed physics are
FS -> clamped
M3 -> gradient

Please reduce to the simple module condtions and check the B.C. at
the end.

perhaps try the M2FLATHER or M2REDUCED type BC's on the east and west. If the longshore tranposrt is to the west, then try east_m2reduced and west_m2flather. You may need to try a few different options to see what works best for your application. From my experience, I recommend use following ...

Hi,

I'm currently using Integrated Data Viewer (IDV) for ROMS output. However, IDV cannot accept staggered grid. I am, therefore, converting U, V, W data from staggered grid using Matlab but it's time consuming.

Does anyone use IDV for ROMS post processing and alternative good way to use it?

Dear arango,

I totally misunderstood and now I know my way to.
I appreciate for your kind suggestions and information.

Dear kate,

I currently do not want to compute wind stress and turned off BULK_FLUXES and ANA_WINDS. I'm using roms_tools to setup initial conditions. Therefore, there is forcing file in User/data diretory. The ROMS seems to reading forcing file but I don't want to read it.

Dear community,

I have a trivial question about wind forcing option in ROMS. I tried to exclude the wind forcing from external file but was alway there. I'm currently put zero in forcing files but there must be related option in *.h file.
Does anyone give me the information of it?

I've shortly summarized OBC and tidal forcing in ROMS 3.0. This is very tentative and will be rewritten when I have time. See http://sauron.urban.eng.osaka-cu.ac.jp/%7Emori/research/ROMS/roms_obc.pdf I am modeling tidal flows over rough topography, in particular the Strait of Juan de Fuca. I have ...

John, Thank you for your kind analysis. I also ran oceanM with ocean_upwelling.in case. I got the same message with coupling_inlet case as you pointed out. This is probably intel compiler 10.0 and mpich problem and I cannot figure out by myself. I wonder if you give me the solution of it ...

Dear All, I had compiled ROMS with MPICH and MCT for INLET_TEST and have tried to run using mpirun but failed. The errors such as "p1_20395: p4_error: net_recv read" look like mpi based erros but I could not figure out. Does anybody have similar problem? I'm currently using Intel Compiler version 10 ...

Use this setup for Linux enviroment (ifort + GNU cpp) CFT = ifort CPPFLAGS = -I/usr/local/include -DUNDERSCORE -DBATHY CPP = cpp -P $(CPPFLAGS) GLDR = ./ncargf90 LDR = ${CFT} RANLIB = ranlib LDFLAGS = FFLAGS = -O3 -L/some_long_gcc_path -free MDEPFLAGS = -s -I /usr/local/netcdf-ifort/include LIBDIR ...

Thank you.

I will check seagrid in detail.

Hi,

I've started using ROMS very recenty. I want to calculate with very local bathymetry that cannot use ETOPO5. Does anyone knows the format of input bathymetry? I also know the location where input file put on.

Thank you