Ocean Modeling Discussion

HI, does your model blowup coincide with large freshwater flux from the river ? What are your salinity/ temperature values in the river forcing file ? It is possible that a large freshwater flux leads to problems with the tracer advection scheme due to strong horizontal gradients, this leads to uncr...

I belive there is a typo in distribute.F (svn Revision: 990)

1620 # ifdef BOUNDARY_ALLGAHTER
--> should be
# ifdef BOUNDARY_ALLGATHER

Same in lines
1677
1710

Thanks guys ! Hernan - OK - I remember having problems with compiling the plotting package in the past due to ncarg library. I'll give it another go. Generally I think it would be nice to decouple the soundspeed calculation from the actual plotting routines and be able to write it into the average o...

Hi all,

just wondering if anyone has some code that calculates the soundspeed from ROMS output files ?

Cheers
Frank

mod_tides.F when AVERAGE_DETIDE

line 288
Dmem(ng)=Dmem(ng)+REAL((N(ng)*(2*MTC+1),r8)*size2d

needs
Dmem(ng)=Dmem(ng)+REAL(N(ng)*(2*MTC+1),r8)*size2d

same for line 296, 305

ROMS:
Revision: 921

Hi all, I have been running a ROMS simulation including tides utilizing the ROMS detiding algorithm When I run the simulation over 1.5 month the detided fields display an offset that depends on the averaging period (see attached images). This is mostly visible for temperature. For example when I run...

Hi all, we are running a ROMS simulation with define FLOATS define FLOAT_VWALK we have 30 vertical layers defined and hence values for zgrid should be between 0, 29. However, the model computes values below zero (up to -400) and greater than 30. This happens mostly in shallow areas related to river ...

thanks - this is very helpful! My simulations using LuvSrc are now very stable. What is the reason of default max_speed set to 20m/s?

Hi Kate thanks for your reply - for the LuvSrc case: I would have thought the model blew up due to violating the speed limit which is caused by large river runoff (btw does roms has a hard-coded speed limit ?). I was able to handle this by increasing river depth (and methods similar as you describe)...

Hi all, I am currently experiencing some model behavior associated with LwScr which I dont understand. I am using LwSrc option to include a point river source. This works fine in terms of inflating the cell (as set in step2d_LF_AM3.h). However, the associated vertical tracer flux does drive the temp...

Have you checked that the coordinates in your forcing file are sorted from low to high values (i.e. increasing) ?

Hi all, has there been a solution to this problem ? I am currently having a similar issue with roms-3.6. I can use multiple output files with NDEFHIS=360 (for my particular setting) but not any other number (!), it then gives me the same error as indicated in the thread above. ROMS is trying to writ...

Yes, I had the same problem with the Intel 11.x compiler recently. Needed to switch to Intel 10.x or Intel 12.x. The segmentation error only occurred when "define AVERAGES" and writing into average file.
Everything worked fine with other compiler versions...