[MITgcm-support] Backtrace error while implementing NOBCS

[Gus Correa]

Hi Kunal

I've had similar errors with OBCS.
For time interpolation to work, you need to have an extra record before and
another after the
time period of your integration in the OBCS files, say, a copy of the first
and last records respectively
(or any other more appropriate scheme, depending on your data).

I hope this helps,
Gus Correa

On Wed, Aug 18, 2021 at 9:42 AM kunal madkaiker <kunal.madkaiker02 at gmail.com>
wrote:

> Dear All,
>
> I am using MITgcm for regional analysis. I have kept a single OB point on
> the northern boundary. But I keep getting backtrace error and model blows.
>
> Error termination. Backtrace:
> At line 1946 of file mdsio_read_section.f (unit = 9, file =
> 'OBNu.seaice_obcs')
> Fortran runtime error: Non-existing record number
>
> I have gone through similar asked questions on the support group and
> checked accordingly. The dimensions for my NOBCS pt is 1x48x2 (nx x nz x
> nt). I have prepared the T,S,U and V data and written as real*8. But still
> error persists.
> Attaching my data, data.exf, data.obcs files. Kindly assist.
>
> Regards,
> Kunal
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>
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