[swanmodel-users] Preparing parametric boundary condition

[Amirmahdi G. <am...@gm...>]

Dear community members,

I want to prepare boundary conditions using wave parameters of WW3 datasets
for running SWAN model in a regular grid setting. For doing this, I have
prepared 30 so-called TPAR files in the latitude of 20 between 58 to 72
longitude. My CGRID is latitude of 20 to 27.5 and longitude of 55 to 73.
The user manual introduces two ways of defining the boundary conditions,
but I have failed to implement them.

1) When I run SWAN by SIDE command, the model stops after 3-4 days of run
and this error appears in the prt file:

** Severe error     : No convergence calculating the spectrum
 ** Severe error     : at the boundary using parametric bound. cond.

2) When I use SEGMent command (whether IJ or XY), model doesn't run and
this error appears in the software:

forrtl: severe (157): Program Exception - access violation
Image              PC                Routine            Line
          Source
swan.exe           00007FF70AED0830  SWBOUN                   3609
 swanpre2.for
swan.exe           00007FF70AEAA763  SWREAD                   1791
 swanpre1.for
swan.exe           00007FF70AE819AE  SWMAIN                    467
 swanmain.for
swan.exe           00007FF70AE81182  MAIN__                    135
 swanmain.for
swan.exe           00007FF70B0BDB82  Unknown               Unknown  Unknown
swan.exe           00007FF70B0BE54C  Unknown               Unknown  Unknown
KERNEL32.DLL       00007FFB2B8D7034  Unknown               Unknown  Unknown
ntdll.dll          00007FFB2CF02651  Unknown               Unknown  Unknown

I attached my command files for each method and a TPAR sample file. I
wonder if anyone knows what the problem is. I appreciate any feedback or
sample command file of successful implementations in which parametric
boundary conditions were utilized.

Thank you,
Amirmahdi Gohari