Introduction

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Version 3.3.7 for CF-1.11

A Python interface to UNIDATA’s UDUNITS-2 library with CF extensions.

Store, combine and compare physical units and convert numeric values to different units.

Units are as defined in UNIDATA’s UDUNITS-2 library, except for reference time units (such as 'days since 2000-12-01' in the 'proleptic_gregorian' calendar), which are handled by the cftime Python package.

In addition, some units are either new to, modified from, or removed from the standard UDUNITS-2 database in order to be more consistent with the CF conventions.