Decrypting error message sphinterpolate [ERROR]: Error in INTRC0: I = 143, J = 353, IER = -3

Q&A
1

Hi all,

Trying to do an sphinterpolate, which returns the following error:
sphinterpolate [ERROR]: Error in INTRC0: I = 143, J = 353, IER = -3
How can I make sense of this?

Using GMT 6 in Windows 10 and today is the first day I give it a try. Managed succesfully to do a blockmean with GMT.

Regards,
Thomas

2

If you land here because you got a similar error. I didn’t get a definitive answer, but think the problem was too few points.

3

Sorry that we didn’t get back to you on time before. Did you try running with debug mode on (e.g. sphinterpolate ... -Vd)? It might print other useful information that is less cryptic.

4

Thank you Wei Ji for the suggestion.

The grid I am using is only for the South Atlantic. Using a smaller region instead of the whole globe solved the error.
The debug information adds “(gmt_ssrfpack_grid) tried to free unallocated memory”. I would interpret this as too few points provided and too many to get through interpolation.