Unused/hard-coded constants #103
Description
Several constants in PyGEMs config.yaml file are either not used in the model code itself, and/or are hard-coded and not called. We should:
- replace hard-coded values in the code with variables (e.g. 273.15 is hard-coded for standard temperature in several places, and
["constants"]["temp_std"]is not used) - remove any unused constants (e.g.
["constants"]["R_gas"])