Search found 11 matches

by onken
Thu May 16, 2019 11:08 am
Forum: ROMS Discussion
Topic: Lagrangian floats
Replies: 1
Views: 364

Lagrangian floats

I have inserted 67 Lagrangian floats in a ROMS model in shallow water (max water depth around 40 m). I expected the floats to move along (potential) density surfaces in order to conserve isopycnal potential vorticity, but several floats penetrate the density surfaces. Here are my questions: (1) The ...
by onken
Mon Jun 25, 2018 12:36 pm
Forum: ROMS Discussion
Topic: NetCDF4
Replies: 0
Views: 872

NetCDF4

I have run 2 identical ROMS runs named ROMS_13 and ROMS_13a but the results are different! and these are the specifications: ROMS_13 compiled with NetCDF3 NHIS=2880 in ocean.in ROMS_13a export USE_NETCDF4=on in build.bash export NC_CONFIG=nf-config in build.bash NHIS=360 in ocean.in Otherwise, every...
by onken
Fri Jan 12, 2018 4:01 pm
Forum: ROMS Adjoint
Topic: wind stress
Replies: 2
Views: 1337

wind stress

Is the wind stress calculation in ROMS corrected with the water velocity at the sea surface?

Reiner
by onken
Fri Dec 15, 2017 2:42 pm
Forum: ROMS Discussion
Topic: negative relative humidity
Replies: 0
Views: 757

negative relative humidity

Sometimes, atmospheric models provide NEGATIVE relative humidities. It is highly recommended to remove such values because ROMS will immediately blow up because lwrad produces NaNs. It took me 2 days to locate the bug! Therefore, when producing the forcing fields, I limit (1) Qair to 0 <= Qair <=100...
by onken
Mon Jul 17, 2017 8:39 am
Forum: ROMS Discussion
Topic: atmospheric forcing
Replies: 0
Views: 684

atmospheric forcing

I ran ROMS for 10 days and accidently, my forcing file covered only the first 2 days. Surprisingly, ROMS did not complain or blow up. What is ROMS doing in this case? Does it run without any atmospheric forcing? Does it lock the forcing to the last data in the forcing file? Or an average?

Reiner
by onken
Fri Jul 07, 2017 3:40 pm
Forum: ROMS Discussion
Topic: Energetics
Replies: 2
Views: 1114

Re: Energetics

Thanks a lot - I will try the link on GITHUB.

Cheers, have a nice weekend!

Reiner
by onken
Wed Jun 21, 2017 8:42 am
Forum: ROMS Discussion
Topic: Energetics
Replies: 2
Views: 1114

Energetics

Are there any tools available to calculate energetics in ROMS, i.e. eddy kinetic/potential energy, energy conversions?
Reiner
by onken
Mon May 22, 2017 8:05 am
Forum: ROMS Discussion
Topic: eddy visosity eddy diffusivity vertical mixing
Replies: 1
Views: 839

eddy visosity eddy diffusivity vertical mixing

(1) What is the default scheme for horizontal eddy viscosity and diffusivity? In the options.h file, I did neither define UV_VIS2 nor UV_VIS4, TS_DIF2, or TS_DIF4. The CPU time of that ROMS run was much less compared to a run with UV_VIS4 and TS_DIF4 but the results were approximately the same. (2) ...
by onken
Fri Feb 17, 2017 2:09 pm
Forum: ROMS Tools and Techniques
Topic: animation
Replies: 1
Views: 1272

animation

I want to create an animation of SST and SSS from a ROMS history file. Therefore, I need only the uppermost layer in the output file. Is there any way to suppress the output of the other layers? This would be desirable to keep the history file small.
by onken
Fri May 15, 2015 8:23 am
Forum: ROMS Tools and Techniques
Topic: SEAGRID.m with MATLAB R2014b
Replies: 12
Views: 12543

SEAGRID.m with MATLAB R2014b

Who knows where I can find a version of "seagrid.m" which works with MATLAB R2014b on LINUX 64bit? Since I upgraded from the previous MATLAB version, seagrid crashes with the following error messages: ------------------------------------------------------ Undefined function 'any' for input arguments...
by onken
Wed Nov 30, 2011 4:15 pm
Forum: ROMS Discussion
Topic: make_seagrid_mex
Replies: 0
Views: 916

make_seagrid_mex

I try to generate the mex files for SEAGRID with >>make_seagrid_mex but I did not succeed. I have Ubuntu 11.04 and MATLAB R2010b. I have hacked the mexopts.sh in the following ways: # change g77 with ifort # installed gcc-4.4 and gfortran-4.4 # try different FFLAGS and # change links in .../MATLAB/....