Module cf 

CF conventions: mask fill values and unpack scale_factor / add_offset.

The behavior follows netCDF4-python and xarray decode_cf.

Structs

CfEncoding

The CF keys that decode_cf removed, plus the packed value type. encode_cf uses it to restore the packed form.

Constants

ADD_OFFSET

CF attribute: the offset to unpack values.

FILL_VALUE

CF attribute: the value that marks missing data.

MISSING_VALUE

CF attribute: one or more values that mark missing data.

SCALE_FACTOR

CF attribute: the multiplier to unpack values.

VALID_MAX

CF attribute: the largest valid value.

VALID_MIN

CF attribute: the smallest valid value.

VALID_RANGE

CF attribute: the smallest and largest valid values.

Functions

decode_cf

Mask fill and out-of-range values as nulls, then unpack scale and offset.

encode_cf

Pack decoded values back with encoding, the inverse of decode_cf.

is_cf_key

True for the attribute keys that decode_cf uses.