lev_i = "lev_i"
lev = "lev"
lev_input = "lev_input"
lev_gm = lev_input

# variables that should have a mask with fill values
fillvars = ["TSW", "SEAICE", "TSI"]


class const:
    """constants used for unit conversion"""

    grav_const = 9.806805923
    absolute_zero = 273.5
