output nc files for Centro-RM-3km and Sinoptico15

NetCDF data for test MPAS simulations.

• Centro-RM-3km, using static-mesh 3km, is defined from lat,lon: (-32.0, -68.0) to (-35.0, -74.0)
• Sinoptico15, using static-mesh 15km, is defined from lat,lon in clockwise order 4-points: (-15.0, -115.0), (-15.0, -65.0), (-55.0, -45.0), (-55.0, -135.0)

2025-01-24:

• Sinoptico10, using static mesh 10km, is defined from lat,lon in clockwise order 4-points: (-10.0, -125.0), (-10.0, -65.0), (-60.0, -45.0), (-60.0, -135.0)