Search found 10 matches

by jsaynisch
Tue Apr 23, 2019 5:50 am
Forum: ROMS Discussion
Topic: CG_DELTA not positive, IS4Dvar
Replies: 1
Views: 459

Re: CG_DELTA not positive, IS4Dvar

Dear ckerry,

have a look here: viewtopic.php?f=16&t=3232

in short: try NRREC=-1
by jsaynisch
Mon Aug 31, 2015 10:22 am
Forum: ROMS Wish List
Topic: Assimilate avg values
Replies: 0
Views: 1675

Assimilate avg values

It would be nice to be able to assimilate also temporal averaged values (e.g. SSH) based on NAVG.

Greetings,
Jan
by jsaynisch
Tue Aug 25, 2015 6:38 am
Forum: ROMS Usage
Topic: ROMS for the Baltic Sea?
Replies: 0
Views: 1387

ROMS for the Baltic Sea?

Hello,

Does someone use ROMS for the Baltic Sea? We are looking for a suitable model for our next project...

Cheers, Jan
by jsaynisch
Wed Aug 19, 2015 1:48 pm
Forum: Job Opportunities
Topic: PhD position at GFZ Potsdam
Replies: 0
Views: 3331

PhD position at GFZ Potsdam

Section 1.3 “Earth System-Modelling” at GFZ searches for a PhD candidate to work in the project “Detectability of non-tidal ocean signals in Earth's magnetic field (OceanMag)”. The project is part of the DFG priority programme “Study of Earth system dynamics with a constellation of potential field m...
by jsaynisch
Wed Jan 29, 2014 1:30 pm
Forum: ROMS Adjoint
Topic: CG_DELTA not positive
Replies: 2
Views: 2557

Re: CG_DELTA not positive

AWESOME, this did the trick!
Thank you, wangzc - it would have taken me quite a while before I would have thought of NRREC! (If at all!)
So thanks gain!
Jan
by jsaynisch
Tue Jan 28, 2014 3:34 pm
Forum: ROMS Adjoint
Topic: CG_DELTA not positive
Replies: 2
Views: 2557

CG_DELTA not positive

I use IS4DVAR with the following configuration: ADJOINT Adjoint Model. ANA_BSFLUX Analytical kinematic bottom salinity flux. ANA_BTFLUX Analytical kinematic bottom temperature flux. ASSUMED_SHAPE Using assumed-shape arrays. AVERAGES Writing out time-averaged nonlinear model fields. BACKGROUND Includ...
by jsaynisch
Fri Nov 22, 2013 10:03 am
Forum: ROMS Adjoint
Topic: netcdf closing error
Replies: 2
Views: 2518

Re: netcdf closing error

Just to let you know, I solved the problem. I had to set all the file-name variables like ITLNAME, CLMNAME and so on. The files itself are not needed. Note, the error does not affect the generation of the normalization factors. I just don't like errors and the tendency of ROMS to need input (sometim...
by jsaynisch
Wed Nov 20, 2013 10:46 am
Forum: ROMS Adjoint
Topic: netcdf closing error
Replies: 2
Views: 2518

netcdf closing error

While computing the normalization factors I get the following error (see below). The normalization factors are normally generated and written to netcdf files (as far as I can see). But there seems to be a problem with the adjoint netcdf file? Why does ROMS want to write this anyway in case of the no...
by jsaynisch
Fri Nov 08, 2013 8:30 am
Forum: ROMS Adjoint
Topic: Observations for normalization?
Replies: 3
Views: 2507

Re: Observations for normalization?

Hey you two,
thank you very much for your replies this helped a lot!!!

Cheers, Jan
by jsaynisch
Thu Nov 07, 2013 3:20 pm
Forum: ROMS Adjoint
Topic: Observations for normalization?
Replies: 3
Views: 2507

Observations for normalization?

Hello, I'm setting up an assimilation system with ROMS. Now I want to compute the normalization factors and the system is asking for an observation file. In "s4dvar.in" this file (OBSname) is marked as input/output. I do not have such a file and are not willing to create one (jet). Did I something w...