Capability to read inputs from netCDFs

[dschlaep]

• Implement functionality to read inputs from netCDFs (if SWNETCDF)
• Don’t read daily weather from text files for sw_template if all weather is provided by netCDFs
• domainType vs. input types
  • a “sites” domain can read from input netCDFs that are “sites” or “xy”; if input netCDFs are of type “sites”, then they must match dimensions of domain
  • a “xy” domain requires “xy” input netCDFs
• Input netCDFs may be larger, smaller, only partially overlap in space and time with the domain
• We require that input netCDFs contain a set of CRS/XY-axis variables that matches up to such a set in the domain netCDF (fail if CRS not matching)
• Maybe: Pre-calculate index positions and store in a “index” netCDF (or use a user-provided file)
• As we loop over all simulation units in the domain, extract values for that suid/simulation run from each available input netCDFs
  • Retrieve index position from “index” netCDF
  • Read value(s)
  • Fail the run if no value (e.g., _FillValue)
  • Convert to SOILWAT2 units
  • Update local_sw
  • Run our checks on inputs (again) after values are updated from netCDFs