Help with the GLS

[rececilio]

Hello.
I am having an issue with the GLS results. The coefficients drop between restart and the first exchange between ROMS and SWAN.
I noticed that DISBOT and DISWCAP are zeros in the restart. Shouldn't they come with the restart file? After the new exchange all comes back to normal. And it is not only at the surface but the full column.
As I restart the run every day for operational purposes, this restart issue is troublesome.
Seizing the opportunity, the results of AKV and AKT are not smooth. What am I doing wrong?
I am using: #define RI_SPLINES, #define WAVE_MIXING, #define TKE_WAVEDISS, #define ZOS_HSIG, #define CHARNOK

[jcwarner-usgs]

i guess a couple of things.

• are you using perfect_restart?
• it has been awhile since i looked at this, but i think DISBOT and DISWCAP are not in the rst.
• at the begin of the simulation, i make roms and swan do an exchange. this will bring the dissips from swan to roms at the start.
• are you using define N2S2_HORAVG?
• the akv akt fields can be noisy, depending on the bathy, stratification , wave breaking etc.

[rececilio]

Yes, I am using perfect_restart and N2S2_HORAVG.

Before 1st time step: (the others have values)
== SWAN grid 1 sent wave data to ROMS grid 1
** ROMS grid 1 recv data from SWAN grid 1
SWANtoROMS Min/Max DISBOT (Wm-2): 0.000000E+00 0.000000E+00
SWANtoROMS Min/Max DISSURF (Wm-2): 0.000000E+00 0.000000E+00
SWANtoROMS Min/Max DISWCAP (Wm-2): 0.000000E+00 0.000000E+00

[jcwarner-usgs]

how are you starting SWAN?
can i see the full output?

[rececilio]

I am restarting from previous run (HOTFILE) with the INIT HOTSTART command.
Here is the output from ROMS (log.out) and SWAN (Print).
log.out.txt
PRINT01.txt

[jcwarner-usgs]

i dont think SWAN computes those fields at the first time step. i can make a modification, but it will take a few weeks.
-j

[rececilio]

It might become an issue near shore with sediment suspension. Thanks.