Search found 13 matches

by isoares
Thu May 23, 2019 10:40 am
Forum: ROMS Discussion
Topic: Nudging time scales working on bry or clim
Replies: 7
Views: 834

Re: Nudging time scales working on bry or clim

Hi Kate,

Yes, this is what I mean. I was using the wrong units. Thanks for warning me about the units. I will let you know about the new results.

Thanks

Ivan
by isoares
Wed May 22, 2019 6:04 pm
Forum: ROMS Discussion
Topic: Nudging time scales working on bry or clim
Replies: 7
Views: 834

Re: Nudging time scales working on bry or clim

Very helpful discussion. Can I add one question ? Following your strategy of using a strong lateral nudging and weak nudging to climatology, if I decide to use a netcdf file to provide the nudging coefficients to the model, what would be the values in this file ? I am trying to use 1 day at the bord...
by isoares
Tue May 21, 2019 2:33 pm
Forum: ROMS Discussion
Topic: Lateral nudging and nudging to climatology
Replies: 2
Views: 339

Re: Lateral nudging and nudging to climatology

Thanks Kate. I missed this previous discussion.

Cheers

Ivan :D
by isoares
Mon May 20, 2019 12:03 pm
Forum: ROMS Discussion
Topic: Lateral nudging and nudging to climatology
Replies: 2
Views: 339

Lateral nudging and nudging to climatology

Dear all, I am a little confused about nudging. I am sure this subject has already been discussed in the forum but I just can’t find a post that addresses the parameters that control lateral nudging and the ones that control nudging to climatology. I am using ROMS version 839, which I have updated o...
by isoares
Wed Sep 26, 2018 11:43 am
Forum: ROMS Adjoint
Topic: d_ssh_obs.m
Replies: 0
Views: 617

d_ssh_obs.m

Hi All, I wonder if someone has a matlab script to prepare the obs file to be used in IS4DVAR that is newer than the one used for WC13. The URL used in that script does not exist anymore. The aviso products were transfered to Copernicus. I would appreciate if someone could share his/hers matlab scri...
by isoares
Tue May 15, 2018 5:37 pm
Forum: ROMS Adjoint
Topic: Normalization coefficients
Replies: 4
Views: 1390

Re: Normalization coefficients

Thanks a lot.
Your comments have help me a lot.
I will let you know when I succeed running IS4DVAR

cheers

Ivan
by isoares
Mon May 14, 2018 2:59 pm
Forum: ROMS Adjoint
Topic: Normalization coefficients
Replies: 4
Views: 1390

Re: Normalization coefficients

Hi Ivica, Thanks a lot for the hints. I guess you are write, 20 cores is not good enough to run a grid this size 601x401x30. I am doing as you said, running the exact and the random methods for the 2D variables only to get some insight of my case. Thanks for the hint. One last question ... Do you kn...
by isoares
Fri May 11, 2018 12:46 pm
Forum: ROMS Adjoint
Topic: Normalization coefficients
Replies: 4
Views: 1390

Normalization coefficients

Deal All, I am new in the business of 4DVAR. I am trying to implement the IS4DVAR in the Northwest Pacific Ocean. My grid is 601x401x30. I am running the experiments in a Azure Virtual Machine which has 20 cores and is configured with Ubuntu linux. The WC3 test went well in this machine, with both t...
by isoares
Tue Sep 20, 2016 1:34 pm
Forum: ROMS Discussion
Topic: CLIMATOLOGY and NUDGING
Replies: 2
Views: 1474

Re: CLIMATOLOGY and NUDGING

Thanks Kate.
by isoares
Mon Sep 19, 2016 5:49 pm
Forum: ROMS Discussion
Topic: CLIMATOLOGY and NUDGING
Replies: 2
Views: 1474

CLIMATOLOGY and NUDGING

Dear ROMS users, Regarding the use of CLIMATOLOGY AND NUDGING, What is the difference between defining the correct flag in the ocean.h file or choosing F or T in the ocean.in file ? Do I have to do both ? I hope I am not asking something that have already been answered in the past, but looking into ...
by isoares
Mon Dec 09, 2013 2:34 pm
Forum: Job Opportunities
Topic: Job Opportunity for modelers
Replies: 0
Views: 2199

Job Opportunity for modelers

Positions are open at Instituto SINTEF do Brasil, a non-profit research and development institute, the Brazilian subsidiary of SINTEF-Scandinavia, the largest research and development organization, comprising more than 2000 employees from over 60 countries. SINTEF do Brasil supports Brazilian and in...
by isoares
Fri Nov 22, 2013 11:08 am
Forum: ROMS Usage
Topic: Question about FLAGS to introduce river sources
Replies: 2
Views: 1849

Re: Question about FLAGS to introduce river sources

Thank you very much Dr. Wilkin. I was mistakenly thinking that UV was a source of momentum, which was added in the momentum equations, while Q was a source of mass introduced in the continuity equation. The name UV_PSOURCE is confusing, it leads us to think that it is a SOURCE, but it is not since, ...
by isoares
Thu Nov 21, 2013 6:44 pm
Forum: ROMS Usage
Topic: Question about FLAGS to introduce river sources
Replies: 2
Views: 1849

Question about FLAGS to introduce river sources

Dear all, Does anybody knows what is the difference between the flags Q_PSOURCE and UV_PSOURCE that we use to make rivers in ROMS ? I am running a few experiments with the Amazon River. Because the Amazon discharge is so large, I had to introduce 1000 sources, so the amount in each source is small. ...