Error with create_forcing.m

croco tools (pre/post-processing)
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1

Hi everyone! I’m learning how to work with CROCO now, and I am facing a problem about how to create a forcing file in 360 days rather than 12 months.

The code runs well in the scale of 12 mouths, while returns warning “## close failed: G:\JS\croco_files\croco_frc.nc” in the scale of 360 days. The result is that I can’t write my datas into the empty file next step. And if I comment out part of the code to reduce variables such as ‘sustr’,‘svstr’ , the create_forcing.m will work well again. What’s wrong with it? And how can I solve it?

Thanks for any useful help.

Mengx

*( a file changing from create_forcing.m tha can run directly is following)

create_frcname.m

2

It seems to me a memory issue with Matlab.

I’ve tried the file attached below and it works fine if I increase the gradually the value of

sms_time
shf_time
swf_time

(lines 34-36)

but when I try to increase

sst_time to 360 it gives me

Warning: ## close failed: C:\Users\dgeo\croco_tools\croco_frc_mengx.nc
In netcdf/close (line 20)
In create_forcing_mengx (line 182)

and Matlab crashes, every time.

I can only increase the value of three dimensions at a time.

Hope this helps

Andrés

create_forcing_mengx.m

3

Thanks for your help. That maybe a choice. There still have a question that a croco_blk.nc, even larger than the frc file, can produce successfully at the same time. It makes me confused.

4

You try to do separate files, with three different variables each and then join them into one using NCO tools. It’s a dirty trick but it might work…

5

I got it. Thanks for your advising.

6

It’s a question with format of NetCDF. NetCDF-3 have a limit that can larger than 2G. So, change the format to NetCDF-4 can solve the question.

But I don’t know how to do it in the preprocessing code of CROCO. As a substitude of file ‘create_forcing.m’, I write down a similar code. You can run the code according to your case first. Then run the code ‘make_forcing.m’ by commenting out the part of ‘Create the forcing file’.

Mengx
create_frc.m