What's Changed

BREAKING CHANGES

the format of groundwater class values (B_GWL_CLASS) that are accepted by OBIC
functions and recorded in OBIC tables. Acceptable input values for B_GWL_CLASS are now:
"I", "Ia", "Ic", "II", "IIa", "IIb", "IIc", "III", "IIIa", "IIIb", "IV",
"IVc", "IVu", "sV", "sVb", "V", "Va", "Vad", "Vao", "Vb", "Vbd", "Vbo", "VI",
"VId", "VII", "VIId", "VIII", "VIIId", "VIIIo", "VIIo", "VIo".
OBIC no longer supports B_GWL_CLASS value "-". For fields with groundwater class "-", the user is advised to use expert judgment on
what the most suitable groundwater class is. Fields with "-" are typically found
in locations with very variable or very deep groundwater levels such as flood plains
or hills.
In the table nleach_table, column B_GT is renamed B_GWL_CLASS for consistency.
The values in this column have also been modified to no longer have the prefix "Gt"
to align with the rest of the package.
In the table waterstress.obic, column gt is renamed B_GWL_CLASS for consistency.
The values in this column have also been modified to no longer have the prefix "Gt"
to align with the rest of the package.

The table waterstress.obic now supports more groundwaterclasses. Classes such as
IIIb are now included in waterstress.obic$B_GWL_CLASS. The new classes with
prefixes and suffixes have the same values as rows with the same roman numeral.
So, with the same cropname and soilunit, III and IIIb have the same values for
the different stresses.
additional B_GWL_CLASS values to nleach_table ("Ia", "Ic", "IIa", "IIc", "IIIa",
"IVu", "IVc", "Va", "Vao", "Vad", "Vbo", "Vbd", "sV", "sVb", "VIo", "VId", "VIIo", "VIId", "VIIIo", "VIIId")

function format_gwt(). OBIC now supports groundwater classes with prefixes and suffixes.
For fields with groundwater class "-", the user is advised to use expert judgment on
what the most suitable groundwater class is. Fields with "-" are typically found
in locations with very variable or very deep groundwater levels such as flood plains
or hills.