Bugfix: Fix Grid-Stat segfault when SEEPS is the only NetCDF output type requested

[JohnHalleyGotway]

Describe the Problem

As described in discussion dtcenter/METplus#2794, Grid-Stat segfaults when SEEPS is the only NetCDF output type requested. Grid-Stat attempts to write the SEEPS data to the NetCDF output file prior to that file being created.

Remember to fix this in both the develop and main_v12.0 branches.

Expected Behavior

This issue is to update the Grid-Stat logic to create and initialize the NetCDF output file, even if SEEPS is the only type requested.

Environment

Describe your runtime environment:

• Identified by the MetOffice and replicated on seneca.

To Reproduce

Describe the steps to reproduce the behavior:

• Replicated in seneca:/d1/projects/METplus/discussions/2794/run_gs.sh using sample data provided for Failing GridStat SEEPS testing with Beta6 METplus#2794.

Relevant Deadlines

Include fix in the MET-12.0.0 release.

Funding Source

2799991

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