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Merged
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Sep 7, 2020
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move whatsnew contributions #3816

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move whatsnew contributions
bjlittle Sep 5, 2020
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bjlittle Sep 7, 2020
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2 changes: 2 additions & 0 deletions docs/iris/src/userguide/cube_maths.rst
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Expand Up @@ -219,6 +219,8 @@ The result could now be plotted using the guidance provided in the
A very similar example to this can be found in the examples section,
with the title "Deriving Exner Pressure and Air Temperature".

.. _cube_maths_combining_units:

Combining units
---------------

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2 changes: 0 additions & 2 deletions docs/iris/src/whatsnew/contributions_3.0.0/bugfix_2019-Nov-21_cell_measure_attributes.txt
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1 change: 0 additions & 1 deletion docs/iris/src/whatsnew/contributions_3.0.0/docchange_2020-Aug-25_clarify_unit_handling.txt
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1 change: 0 additions & 1 deletion ...atsnew/contributions_3.0.0/incompatiblechange_2020-May-15_change_default_unit_loading.txt
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2 changes: 0 additions & 2 deletions docs/iris/src/whatsnew/contributions_3.0.0/newfeature_2019-Nov-21_netcdf_ancillary_data.txt
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18 changes: 17 additions & 1 deletion docs/iris/src/whatsnew/latest.rst
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Expand Up @@ -27,7 +27,9 @@ Features
dependency on `matplotlib`_ at ``v2.x``. Now that ``Python2`` support has
been dropped, ``Iris`` is free to use the latest version of `matplotlib`_.

* `CF Ancillary Data`_ variables are now supported.
* `CF Ancillary Data`_ variables are now supported, and can be loaded from and
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would it be useful to link to an issue or pr?

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@tkknight Glad to do that, but for consistency that should also be the case for all other whatsnew entries...

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I think it would make the whats new page more useful - we could keep this discussion separate to this PR so we do not block it.

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@tkknight Cool.

For this PR I'll add the relevant links per whatsnew entry mentioned here. Then I'll raise a separate PR to add relevant links to all the other entries, if possible... just to separate concerns. Thanks 👍

saved to NetCDF-CF files. Support for `Quality Flags`_ is also provided to
ensure they load and save with appropriate units. See :pull:`3800`.


Dependency Updates
Expand Down Expand Up @@ -80,6 +82,10 @@ Bugs Fixed
(previously would take the unit from a time coordinate, if present, even
though the coordinate's value had been changed via ``date2num``).

* Attributes of cell measures in NetCDF-CF files were being discarded during
loading. They are now available on the :class:`~iris.coords.CellMeasure` in
the loaded :class:`~iris.cube.Cube`. See :pull:`3800`.


Incompatible Changes
====================
Expand Down Expand Up @@ -109,6 +115,12 @@ Incompatible Changes
:func:`iris.experimental.concatenate.concatenate` function raised an
exception.

* When loading data from NetCDF-CF files, where a variable has no ``units``
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would it be useful to link to an issue or pr?

property, the corresponding Iris object will have ``units='unknown'``.
Prior to Iris ``3.0.0``, these cases defaulted to ``units='1'``.
See :pull:`3795`.


Internal
========

Expand Down Expand Up @@ -176,6 +188,10 @@ Documentation
* Added a warning to the :func:`iris.analysis.cartography.project` function
regarding its behaviour on projections with non-rectangular boundaries.

* Added the :ref:`cube_maths_combining_units` section to the user guide to
clarify how ``Units`` are handled during cube arithmetic.

.. _Read the Docs: https://scitools-iris.readthedocs.io/en/latest/
.. _matplotlib: https://matplotlib.org/
.. _CF Ancillary Data: https://cfconventions.org/Data/cf-conventions/cf-conventions-1.8/cf-conventions.html#ancillary-data
.. _Quality Flags: https://cfconventions.org/Data/cf-conventions/cf-conventions-1.8/cf-conventions.html#flags