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|
=====================
MetPy 1.0 API Changes
=====================
This is the overview of the changes to MetPy's programming interface that are coming with the
1.0 release of MetPy. These include changes made to unify and clarify MetPy's API to be more
consistent throughout. Changes are categorized to help you find breakages and see how your
code might need to change in upgrading to MetPy 1.0. You might find some functions in multiple
categories. You can search this page for some of your commonly used functions to find any
relevant breakages you might encounter.
Xarray support for function input/output
----------------------------------------
One of the most important changes you may run into is that many of the functions in
:mod:`metpy.calc` would have only returned :class:`pint.Quantity` even when provided
:class:`xarray.DataArray`. Now, MetPy will properly return a :class:`~xarray.DataArray` when
provided one where able, except where otherwise explicitly stated. See the
:doc:`MetPy xarray tutorial </tutorials/xarray_tutorial>` for more information.
Positional argument name changes
--------------------------------
Many of the functions in :mod:`metpy.calc` have had changes to the names of their positional
arguments to make parameter names consistent among functions and make the documentation of
parameters clearer for users. Functions in your code with only this change will be unaffected
by the upgrade to MetPy 1.0 if the values are only specified positionally. For example,
.. code-block:: python
wind_components(10. * units('m/s'), 225. * units.deg)
will work the same on MetPy before and after the upgrade to 1.0. However, if you specify these
arguments by name, e.g.
.. code-block:: python
wind_components(speed=10. * units('m/s'), wdir=225. * units.deg)
then you will see breakage upgrading to MetPy 1.0, where the ``wdir`` argument has been
expanded as ``wind_direction``. Common arguments changed here include ``rh`` to
``relative_humidity``, ``heights`` to ``height``, and ``dewpt`` to ``dewpoint``, among others.
.. container:: api-table
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.wind_components` |
+------------------------------------------------------------------------------------------------------------------+
| ``(speed, wdir)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(speed, wind_direction)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.heat_index` |
+------------------------------------------------------------------------------------------------------------------+
| ``(temperature, rh, mask_undefined=True)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(temperature, relative_humidity, mask_undefined=True)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.apparent_temperature` |
+------------------------------------------------------------------------------------------------------------------+
| ``(temperature, rh, speed, face_level_winds=False, mask_undefined=True)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(temperature, relative_humidity, speed, face_level_winds=False, mask_undefined=True)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.geopotential_to_height` |
+------------------------------------------------------------------------------------------------------------------+
| ``(geopot)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(geopotential)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.sigma_to_pressure` |
+------------------------------------------------------------------------------------------------------------------+
| ``(sigma, psfc, ptop)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(sigma, pressure_sfc, pressure_top)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.absolute_momentum` |
+------------------------------------------------------------------------------------------------------------------+
| ``(u_wind, v_wind, index='index')`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(u, v, index='index')`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.bunkers_storm_motion` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, u, v, heights)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, u, v, height)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.bulk_shear` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, u, v, heights=None, bottom=None, depth=None)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, u, v, height=None, bottom=None, depth=None)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.critical_angle` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, u, v, heights, stormu, stormv)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, u, v, height, u_storm, v_storm)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.storm_relative_helicity` |
+------------------------------------------------------------------------------------------------------------------+
| ``(u, v, heights, depth, ...)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(height, u, v, depth, ...)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.potential_vorticity_baroclinic` |
+------------------------------------------------------------------------------------------------------------------+
| ``(potential_temperature, pressure, u, v, dx, dy, lats)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(potential_temperature, pressure, u, v, dx=None, dy=None, latitude=None, x_dim=-1, y_dim=-2, vertical_dim=-3)``|
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.relative_humidity_from_dewpoint` |
+------------------------------------------------------------------------------------------------------------------+
| ``(temperature, dewpt)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(temperature, dewpoint)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.temperature_from_potential_temperature` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, theta)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, potential_temperature)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.dry_lapse` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, ref_pressure=None)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, reference_pressure=None, vertical_dim=0)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.moist_lapse` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, ref_pressure=None)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, reference_pressure=None)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.lcl` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, dewpt, max_iters=50, eps=1e-05)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, dewpoint, max_iters=50, eps=1e-05)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.lfc` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, dewpt, parcel_temperature_profile=None, dewpt_start=None, which='top')`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, dewpoint, parcel_temperature_profile=None, dewpoint_start=None, which='top')`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.el` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, dewpt, parcel_temperature_profile=None, which='top')`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, dewpoint, parcel_temperature_profile=None, which='top')`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.parcel_profile` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, dewpt)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, dewpoint)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.parcel_profile_with_lcl` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, dewpt)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, dewpoint)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.vapor_pressure` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, mixing)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, mixing_ratio)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.dewpoint_from_relative_humidity` |
+------------------------------------------------------------------------------------------------------------------+
| ``(temperature, rh)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(temperature, relative_humidity)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.dewpoint` |
+------------------------------------------------------------------------------------------------------------------+
| ``(e)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(vapor_pressure)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.mixing_ratio` |
+------------------------------------------------------------------------------------------------------------------+
| ``(part_press, tot_press, ...)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(partial_press, total_press, ...)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.saturation_mixing_ratio` |
+------------------------------------------------------------------------------------------------------------------+
| ``(tot_press, temperature)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(total_press, temperature)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.virtual_temperature` |
+------------------------------------------------------------------------------------------------------------------+
| ``(temperature, mixing, ...)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(temperature, mixing_ratio, ...)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.virtual_potential_temperature` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, mixing, ...)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, mixing_ratio, ...)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.density` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, mixing, ...)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, mixing_ratio, ...)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.cape_cin` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, dewpt, ...)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, dewpoint, ...)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.most_unstable_parcel` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, dewpoint, heights=None, ...)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, dewpoint, height=None, ...)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.mixed_parcel` |
+------------------------------------------------------------------------------------------------------------------+
| ``(p, temperature, dewpt, parcel_start_pressure=None, heights=None, ....)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, dewpoint, parcel_start_pressure=None, height=None, ...)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.dry_static_energy` |
+------------------------------------------------------------------------------------------------------------------+
| ``(heights, temperature)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(height, temperature)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.moist_static_energy` |
+------------------------------------------------------------------------------------------------------------------+
| ``(heights, temperature, specific_humidity)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(height, temperature, specific_humidity)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.thickness_hydrostatic` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, mixing=None, ...)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, mixing_ratio=None, ...)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.brunt_vaisala_frequency_squared` |
+------------------------------------------------------------------------------------------------------------------+
| ``(heights, potential_temperature, axis=0)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(height, potential_temperature, vertical_dim=0)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.brunt_vaisala_frequency` |
+------------------------------------------------------------------------------------------------------------------+
| ``(heights, potential_temperature, axis=0)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(height, potential_temperature, vertical_dim=0)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.brunt_vaisala_period` |
+------------------------------------------------------------------------------------------------------------------+
| ``(heights, potential_temperature, axis=0)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(height, potential_temperature, vertical_dim=0)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.static_stability` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, axis=0)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(pressure, temperature, vertical_dim=0)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.vertical_velocity_pressure` |
+------------------------------------------------------------------------------------------------------------------+
| ``(w, pressure, temperature, mixing=0)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(w, pressure, temperature, mixing_ratio=0)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.vertical_velocity` |
+------------------------------------------------------------------------------------------------------------------+
| ``(omega, pressure, temperature, mixing=0)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(omega, pressure, temperature, mixing_ratio=0)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.get_layer_heights` |
+------------------------------------------------------------------------------------------------------------------+
| ``(heights, depth, *args, bottom=None, interpolate=True, with_agl=False)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(height, depth, *args, bottom=None, interpolate=True, with_agl=False)`` |
+------------------------------------------------------------------------------------------------------------------+
Keyword-only argument name changes
----------------------------------
Similar to the `positional argument name changes`_ above, some of the functions in
:mod:`metpy.calc` have had names changed for keyword-only arguments. If you have specified
any of the affected parameters in your code, these functions will break with the upgrade to
MetPy 1.0. For example,
.. parsed-literal::
mean_pressure_weighted(pressure, temperature, **heights=my_height_values**)
will break as the ``heights`` keyword has changed to ``height``.
.. container:: api-table
+----------------------------------------------------------------+
| :func:`~metpy.calc.mean_pressure_weighted` |
+----------------------------------------------------------------+
| ``(pressure, *args, heights=None, bottom=None, depth=None)`` |
+----------------------------------------------------------------+
| ``(pressure, *args, height=None, bottom=None, depth=None)`` |
+----------------------------------------------------------------+
| :func:`~metpy.calc.isentropic_interpolation` |
+----------------------------------------------------------------+
| ``(theta_levels, pressure, temperature, *args, axis=0, ...)`` |
+----------------------------------------------------------------+
| ``(levels, pressure, temperature, *args, vertical_dim=0, ...)``|
+----------------------------------------------------------------+
| :func:`~metpy.calc.mixed_layer` |
+----------------------------------------------------------------+
| ``(p, *args, heights=None, ...)`` |
+----------------------------------------------------------------+
| ``(pressure, *args, height=None, ...)`` |
+----------------------------------------------------------------+
| :func:`~metpy.calc.get_layer` |
+----------------------------------------------------------------+
| ``(pressure, *args, heights=None, ...)`` |
+----------------------------------------------------------------+
| ``(pressure, *args, height=None, ...)`` |
+----------------------------------------------------------------+
New keyword-only arguments
--------------------------
The following functions have had some of their positional or optional arguments changed to
keyword-only arguments. As such, any use of these positionally, e.g.
.. parsed-literal::
vorticity(u, v, **my_dx_values**, **my_dy_values**)
will break, and you must specify
.. parsed-literal::
vorticity(u, v, **dx=my_dx_values**, **dy=my_dy_values**)
going forward.
.. container:: api-table
+--------------------------------------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.precipitable_water` |
+--------------------------------------------------------------------------------------------------------------------------------------------------+
| ``(dewpt, pressure, bottom=None, top=None)`` |
+--------------------------------------------------------------------------------------------------------------------------------------------------+
| ``(pressure, dewpoint, *, bottom=None, top=None)`` |
+--------------------------------------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.storm_relative_helicity` |
+--------------------------------------------------------------------------------------------------------------------------------------------------+
| ``(u, v, heights, depth, bottom=<Quantity(0, 'meter')>, storm_u=<Quantity(0.0, 'meter / second')>, storm_v=<Quantity(0.0, 'meter / second')>)`` |
+--------------------------------------------------------------------------------------------------------------------------------------------------+
| ``(height, u, v, depth, *, bottom=<Quantity(0, 'meter')>, storm_u=<Quantity(0.0, 'meter / second')>, storm_v=<Quantity(0.0, 'meter / second')>)``|
+--------------------------------------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.vorticity` |
+--------------------------------------------------------------------------------------------------------------------------------------------------+
| ``(u, v, dx, dy)`` |
+--------------------------------------------------------------------------------------------------------------------------------------------------+
| ``(u, v, *, dx=None, dy=None, x_dim=-1, y_dim=-2)`` |
+--------------------------------------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.divergence` |
+--------------------------------------------------------------------------------------------------------------------------------------------------+
| ``(u, v, dx, dy)`` |
+--------------------------------------------------------------------------------------------------------------------------------------------------+
| ``(u, v, *, dx=None, dy=None, x_dim=-1, y_dim=-2)`` |
+--------------------------------------------------------------------------------------------------------------------------------------------------+
Parameter re-ordering
---------------------
Some functions in :mod:`metpy.calc` have had the ordering of their arguments rearranged.
If you are specifying values positionally, e.g.
.. code-block:: python
mixing_ratio_from_relative_humidity(75 * units.percent, 1013.25 * units.hPa,
25 * units.degC)
these will break, as the signature ordering has changed from
``(relative_humidity, temperature, pressure)`` to
``(pressure, temperature, relative_humidity)``. If you have specified these arguments by name,
however, e.g.
.. code-block:: python
mixing_ratio_from_relative_humidity(relative_humidity=75 * units.percent,
pressure=1015 * units.hPa, temperature=25 * units.degC)
then your code will function as before even with the updated signature ordering in MetPy 1.0.
.. container:: api-table
+---------------------------------------------------------------------+
| :func:`~metpy.calc.precipitable_water` |
+---------------------------------------------------------------------+
| ``(dewpt, pressure, bottom=None, top=None)`` |
+---------------------------------------------------------------------+
| ``(pressure, dewpoint, *, bottom=None, top=None)`` |
+---------------------------------------------------------------------+
| :func:`~metpy.calc.storm_relative_helicity` |
+---------------------------------------------------------------------+
| ``(u, v, heights, depth, ...)`` |
+---------------------------------------------------------------------+
| ``(height, u, v, depth, ...)`` |
+---------------------------------------------------------------------+
| :func:`~metpy.calc.relative_humidity_wet_psychrometric` |
+---------------------------------------------------------------------+
| ``(dry_bulb_temperature, web_bulb_temperature, pressure, **kwargs)``|
+---------------------------------------------------------------------+
| ``(pressure, dry_bulb_temperature, wet_bulb_temperature, **kwargs)``|
+---------------------------------------------------------------------+
| :func:`~metpy.calc.psychrometric_vapor_pressure_wet` |
+---------------------------------------------------------------------+
| ``(dry_bulb_temperature, wet_bulb_temperature, pressure, ...`` |
+---------------------------------------------------------------------+
| ``(pressure, dry_bulb_temperature, wet_bulb_temperature, ...`` |
+---------------------------------------------------------------------+
| :func:`~metpy.calc.mixing_ratio_from_relative_humidity` |
+---------------------------------------------------------------------+
| ``(relative_humidity, temperature, pressure)`` |
+---------------------------------------------------------------------+
| ``(pressure, temperature, relative_humidity)`` |
+---------------------------------------------------------------------+
| :func:`~metpy.calc.relative_humidity_from_mixing_ratio` |
+---------------------------------------------------------------------+
| ``(mixing_ratio, temperature, pressure)`` |
+---------------------------------------------------------------------+
| ``(pressure, temperature, mixing_ratio)`` |
+---------------------------------------------------------------------+
| :func:`~metpy.calc.relative_humidity_from_specific_humidity` |
+---------------------------------------------------------------------+
| ``(specific_humidity, temperature, pressure)`` |
+---------------------------------------------------------------------+
| ``(pressure, temperature, specific_humidity)`` |
+---------------------------------------------------------------------+
| :func:`~metpy.calc.dewpoint_from_specific_humidity` |
+---------------------------------------------------------------------+
| ``(specific_humidity, temperature, pressure)`` |
+---------------------------------------------------------------------+
| ``(pressure, temperature, specific_humidity)`` |
+---------------------------------------------------------------------+
| :func:`~metpy.calc.specific_humidity_from_dewpoint` |
+---------------------------------------------------------------------+
| ``(dewpoint, pressure)`` |
+---------------------------------------------------------------------+
| ``(pressure, dewpoint)`` |
+---------------------------------------------------------------------+
Deltas and grid specification
-----------------------------
Many of the functions in :mod:`metpy.calc` relating to vorticity and advection require
information about the space between your data points. MetPy has generally standardized the
interface for these functions to more explicitly receive dimension information and ordering
with consistent parameter names across the board. Particularly, anywhere you may have been
specifying ``dim_order`` before, you will now need to specify the particular axis number for
the requisite dimensions explicitly. Importantly, MetPy's new
:doc:`xarray functionality </tutorials/xarray_tutorial>` in 1.0 can handle these grid
specifications for you if you are using it, and these signature updates were made to coincide
with that functionality. Please see the the documentation for the following functions for more
information.
.. container:: api-table
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.shearing_deformation` |
+------------------------------------------------------------------------------------------------------------------+
| ``(u, v, dx, dy)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(u, v, dx=None, dy=None, x_dim=-1, y_dim=-2)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.stretching_deformation` |
+------------------------------------------------------------------------------------------------------------------+
| ``(u, v, dx, dy)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(u, v, dx=None, dy=None, x_dim=-1, y_dim=-2)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.total_deformation` |
+------------------------------------------------------------------------------------------------------------------+
| ``(u, v, dx, dy)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(u, v, dx=None, dy=None, x_dim=-1, y_dim=-2)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.advection` |
+------------------------------------------------------------------------------------------------------------------+
| ``(scalar, wind, deltas)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(scalar, u=None, v=None, w=None, *, dx=None, dy=None, dz=None, x_dim=-1, y_dim=-2, vertical_dim=-3)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.frontogenesis` |
+------------------------------------------------------------------------------------------------------------------+
| ``(thta, u, v, dx, dy, dim_order='yx')`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(potential_temperature, u, v, dx=None, dy=None, x_dim=-1, y_dim=-2)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.geostrophic_wind` |
+------------------------------------------------------------------------------------------------------------------+
| ``(heights, f, dx, dy)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(height, dx=None, dy=None, latitude=None, x_dim=-1, y_dim=-2)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.ageostrophic_wind` |
+------------------------------------------------------------------------------------------------------------------+
| ``(heights, f, dx, dy, u, v, dim_order='yx')`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(height, u, v, dx=None, dy=None, latitude=None, x_dim=-1, y_dim=-2)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.absolute_vorticity` |
+------------------------------------------------------------------------------------------------------------------+
| ``(u, v, dx, dy, lats, dim_order='yx')`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(u, v, dx=None, dy=None, latitude=None, x_dim=-1, y_dim=-2)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.potential_vorticity_baroclinic` |
+------------------------------------------------------------------------------------------------------------------+
| ``(potential_temperature, pressure, u, v, dx, dy, lats)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(potential_temperature, pressure, u, v, dx=None, dy=None, latitude=None, x_dim=-1, y_dim=-2, vertical_dim=-3)``|
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.potential_vorticity_barotropic` |
+------------------------------------------------------------------------------------------------------------------+
| ``(heights, u, v, dx, dy, lats, dim_order='yx')`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(height, u, v, dx=None, dy=None, latitude=None, x_dim=-1, y_dim=-2)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.inertial_advective_wind` |
+------------------------------------------------------------------------------------------------------------------+
| ``(u, v, u_geostrophic, v_geostrophic, dx, dy, lats)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(u, v, u_geostrophic, v_geostrophic, dx=None, dy=None, latitude=None, x_dim=-1, y_dim=-2)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.q_vector` |
+------------------------------------------------------------------------------------------------------------------+
| ``(u, v, temperature, pressure, dx, dy, static_stability=1)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(u, v, temperature, pressure, dx=None, dy=None, static_stability=1, x_dim=-1, y_dim=-2)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.vorticity` |
+------------------------------------------------------------------------------------------------------------------+
| ``(u, v, dx, dy)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(u, v, *, dx=None, dy=None, x_dim=-1, y_dim=-2)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.divergence` |
+------------------------------------------------------------------------------------------------------------------+
| ``(u, v, dx, dy)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(u, v, *, dx=None, dy=None, x_dim=-1, y_dim=-2)`` |
+------------------------------------------------------------------------------------------------------------------+
| :func:`~metpy.calc.lat_lon_grid_deltas` |
+------------------------------------------------------------------------------------------------------------------+
| ``(longitude, latitude, **kwargs)`` |
+------------------------------------------------------------------------------------------------------------------+
| ``(longitude, latitude, x_dim=-1, y_dim=-2, geod=None)`` |
+------------------------------------------------------------------------------------------------------------------+
Latitude and f
--------------
In MetPy 1.0, :func:`~metpy.calc.geostrophic_wind` and :func:`~metpy.calc.ageostrophic_wind`
have been changed to expect ``latitude`` instead of the coriolis parameter ``f``, where we
will calculate ``f`` using :func:`~metpy.calc.coriolis_parameter`. These have also been
updated with the same new `deltas and grid specification`_ as above. If you are using MetPy's
new :doc:`xarray functionality </tutorials/xarray_tutorial>` in 1.0, this can be automatically
taken from your latitude coordinate information, if possible.
.. container:: api-table
+------------------------------------------------------------------------+
| :func:`~metpy.calc.geostrophic_wind` |
+------------------------------------------------------------------------+
| ``(heights, f, dx, dy)`` |
+------------------------------------------------------------------------+
| ``(height, dx=None, dy=None, latitude=None, x_dim=-1, y_dim=-2)`` |
+------------------------------------------------------------------------+
| :func:`~metpy.calc.ageostrophic_wind` |
+------------------------------------------------------------------------+
| ``(heights, f, dx, dy, u, v, dim_order='yx')`` |
+------------------------------------------------------------------------+
| ``(height, u, v, dx=None, dy=None, latitude=None, x_dim=-1, y_dim=-2)``|
+------------------------------------------------------------------------+
Moved, renamed, miscellaneous
-----------------------------
Functions that have been moved, replaced, or had their function signatures drastically altered.
.. container:: api-table
+-----------------------------------------------------------------+
| ``dewpoint_rh()`` |
+-----------------------------------------------------------------+
+-----------------------------------------------------------------+
| :func:`~metpy.calc.dewpoint_from_relative_humidity` |
+-----------------------------------------------------------------+
| ``grid_deltas_from_dataarray`` |
+-----------------------------------------------------------------+
+-----------------------------------------------------------------+
| ``metpy.xarray`` |
+-----------------------------------------------------------------+
| :func:`~metpy.calc.first_derivative` |
+-----------------------------------------------------------------+
| ``(f, **kwargs)`` |
+-----------------------------------------------------------------+
| ``(f, axis=None, x=None, delta=None)`` |
+-----------------------------------------------------------------+
| :func:`~metpy.calc.second_derivative` |
+-----------------------------------------------------------------+
| ``(f, **kwargs)`` |
+-----------------------------------------------------------------+
| ``(f, axis=None, x=None, delta=None)`` |
+-----------------------------------------------------------------+
| :func:`~metpy.calc.gradient` |
+-----------------------------------------------------------------+
| ``(f, **kwargs)`` |
+-----------------------------------------------------------------+
| ``(f, axes=None, coordinates=None, deltas=None)`` |
+-----------------------------------------------------------------+
| :func:`~metpy.calc.laplacian` |
+-----------------------------------------------------------------+
| ``(f, **kwargs)`` |
+-----------------------------------------------------------------+
| ``(f, axes=None, coordinates=None, deltas=None)`` |
+-----------------------------------------------------------------+
|
