[production/RRFS.v1]Fixes for REFS restart reproducibility and crash under DEBUG

[JiliDong-NOAA]

This PR addresses:

1. REFS ensemble restart reproducibility issues when running with 32 bit physics by

• changing the SPP random seeds and spectral coefficient variable names for consistency when reading these variables for restart (spppert_seed->spp_seed; ppcpert_spec->spp_spec)
• modifying data type from single to double precision when reading and writing the above two variables

2. crash when running REFS under DEBUG mode

The issues are related to LSM-SPP. It appears that LSM-SPP perturbations were added to the whole domain without masking out the water/ice points. This caused:

• 0 index error under DEBUG mode for smcmin/smcmax(stype) when stype=0 over water
• floating overflow error under DEBUG mode when applying LSM-SPP to zorll where zorll would have missing values over water/ice (9x10e30)

Temporary patches were added to fix these crashes when running REFS under DEBUG. Could we have @ClaraDraper-NOAA and @barlage review these changes in lndp_apply_perts.F90? A more general question: should water/ice points be masked out when applying LSM-SPP when calling lndp_apply_perts or am I missing something here?

Fixes issue #92

[MatthewPyle-NOAA]

@JiliDong-NOAA Have you heard anything about this one? Wondering if it might be a good idea to create the associated UFS WM and UFSATM PRs so it has more visibility.

[JiliDong-NOAA]

@JiliDong-NOAA Have you heard anything about this one? Wondering if it might be a good idea to create the associated UFS WM and UFSATM PRs so it has more visibility.

Not yet. I was hoping to create single UFSATM and WM PRs by including all changes necessary after submodule components getting merged first. @pjpegion @ClaraDraper-NOAA @barlage could you review this PR when you have time? RRFSv1 implementation is approaching and we have a code handoff date as Oct. 31.

[MatthewPyle-NOAA]

@pjpegion I'm hoping at long last to get this change merged into production/RRFS.v1. Can you review/approve? Thanks!

[MatthewPyle-NOAA]

Thanks @pjpegion Can you merge it? I don't seem to have that permission for this repository.

[pjpegion]

@MatthewPyle-NOAA @jkbk2004 is the code manager.

[MatthewPyle-NOAA]

@jkbk2004 Could we get your help to merge this one? Thanks!