0.5.1

Version 0.5.1 (2017/04/21)

NOTE--Impending API CHANGE In this version we have added support for specifying (via dim_order keyword argument) array ordering for the 2D grid functions (geostrophic_wind, advection, h_convergence, v_vorticity, and convergence_vorticity). The default behavior for all releases < 0.6 has been x, then y (specified as 'xy'). For >= 0.6, we will be changing that to 'yx' to make it simpler to use most data sources. In this release, we will issue a warning if you are using the default ordering--this warning can be suppressed by passing the dim_order argument with either 'xy' or 'yx', whichever is appropriate for your data.

Summary:

• Fix windchill with Kelvin temperature units
• Fixed reversed ordering of GINI data y-coordinates (relative to image row order)
• Added option to specify array dimension ordering for 2D grid calculation functions
• Fixed inaccuracy of example code in docstrings
• Fixed lfc() to return NaNs instead of None when no LFC found

Issues Closed

• Issue 389 - Calculations data order
• Issue 387 - Handling of no LFC
• Issue 385 - Windchill calculation does not work with Kelvin as input units
• Issue 381 - Run doctests

In this release 4 issues were closed.

Pull Requests Merged

• PR 397 - Build maintenance
• PR 396 - LFC and EL NaN returns
• PR 393 - ENH: Run doctests as part of Travis doc build.
• PR 392 - Array ordering for 2D calculations
• PR 391 - BUG: Fix ordering of GINI y-coordinates
• PR 388 - BUG: Fix windchill when given kelvin temperatures (Fixes #385)

In this release 6 pull requests were closed.

0.5.0

Version 0.5.0 (2017/04/03)

Highlights

• API BREAK: lcl() now returns both the pressure and temperature at the lifted condensation level, rather than just pressure. Not only does this simplify the use of lcl, but comes at no additional computation cost.
• Python 3.3 support replaced with support for Python 3.6 (though no related code changes)
• Galleries of symbols and color tables within the documentation
• SkewT improvements
  • Better handling of missing data
  • Default limits
  • Dedicated plotting routines for shading CAPE/CIN
  • Better handling of unit-ed arrays
• Added meteogram and 4 panel plot examples
• Wind speed and direction available directly from upper air data
• Several fixes for lcl() and lfc()
• Additional calculations:
  • virtual_temperature
  • virtual_potential_temperature
  • density
  • equilibrium layer (el)
  • relative_humidity_wet_psychrometric
  • psychrometric_vapor_pressure_wet
• GINIFile now has an img_extent attribute to simplify plotting
• Added reduce_point_density to remove overlapping points from point data plots
• A few fixes for StationPlot

Contributors to this release

@ahill818, @nawendt, @kgoebber, @mjames-upc, @jrleeman, @dopplershift

Issues Closed

• Issue 371 - Add link to source code in docs
• Issue 369 - Four_Panel_Map.py example: temp plot legend says 225 to 330 Fahrenheit
• Issue 366 - Nest documentation a bit more
• Issue 361 - LFC fails with NaN
• Issue 354 - Graceful failure of upper air data retrieval for invalid station or time
• Issue 351 - find_intersections fails with some masked arrays
• Issue 350 - Incorrect LFC with capping inversion
• Issue 349 - Add interpolation utility
• Issue 336 - Plotting colored line on hodograph with NaN
• Issue 334 - Upper air data download from Iowa
• Issue 325 - Can't set fontsize for stationplot symbol plot
• Issue 319 - LFC returns incorrect result
• Issue 317 - lcl() is silent for failed convergence
• Issue 314 - More Documentation Tweaks
• Issue 308 - Standardize field naming in station plot examples
• Issue 307 - Station plot parameter plotting does not work with units properly
• Issue 300 - Add temperature to LCL calculation
• Issue 298 - Keep wind speed and direction when getting upper air data
• Issue 290 - Cartopy with matplotlib 2.0
• Issue 289 - Add "Atmospheric Science" to setup.py categories
• Issue 286 - Python 3.6
• Issue 242 - Investigate increased use of gitter
• Issue 227 - License for icon font
• Issue 198 - Using units to axhline, etc. breaks plotting
• Issue 175 - Improve units behavior for new users
• Issue 161 - DOI
• Issue 154 - calculate relative humidity and dew point with wet bulb and dry bulb
• Issue 90 - Spatial simplification

In this release 28 issues were closed.

Pull Requests Merged

• PR 384 - ENH: Add information for citing MetPy in publications
• PR 382 - Shade area on SkewT
• PR 380 - ENH: Add tool to thin down point data (Fixes #90)
• PR 379 - BUG: Fix units in 4 panel example (Fixes #369)
• PR 378 - Skew T Masked Data
• PR 376 - Colortable get with range
• PR 374 - Unit errors
• PR 372 - Add ability to deal with masked arrays to find_intersections
• PR 357 - Adds new img_extent attribute to ginifile dataset
• PR 355 - Interpolation utility
• PR 353 - IA State masked arrays
• PR 352 - Find intersections directionality
• PR 345 - Psychrometric RH
• PR 342 - Mask out NaN values for plot_colormapped lines.
• PR 341 - Fix return if no LFC exists
• PR 338 - EL calculation
• PR 337 - Added thermo calculations
• PR 335 - ENH: Add google analytics to docs
• PR 333 - Four Panel Example
• PR 332 - Add CC BY 4.0 license for weather symbol font
• PR 331 - Set edgecolor to black on state borders
• PR 330 - Convert quantities to scalars before formatting
• PR 329 - Sprint cleanup
• PR 328 - Raise exception if LCL does not converge
• PR 327 - Station fontsize
• PR 326 - Doc tweaks
• PR 324 - Wind speed direction
• PR 323 - Change Station Plot Examples to CF standard names
• PR 321 - Python 3.6
• PR 320 - LFC fix
• PR 318 - added an example to plot a meteogram
• PR 315 - LCL Update
• PR 309 - Doc Upgrades
• PR 304 - Symbol Gallery
• PR 302 - NWS AWIPS 8bit colortables for Z and V

In this release 35 pull requests were closed.

0.4.3

Version 0.4.3 (2017/01/18)

• Fixed units on return from windchill
• Fixed documented types on some calculations to reflect reality
• Fixed creating a Hodograph without passing a figure
• Fixed SkewT when gridlines are turned on before plot creation
• Fixed gamma argument not being being passed on by inverse_distance()
• Fixed testing against matplotlib 2.0
• Fixed SkewT missing top tick marks
• Fixed importing colortables when non-conforming .tbl files present

Contributors to this release

@ShawnMurd, @wholmgren, @ymoisan, @lmadaus, @dopplershift

Issues closed

Issues

• Issue 281 - Windchill return has no units if values are masked
• Issue 279 - Comment needs modification
• Issue 277 - inverse_distance() not properly forwarding gamma argument
• Issue 276 - Python version-dependent scaling of station plot
• Issue 275 - mixing_ratio not quite right
• Issue 271 - Cannot find xaxis in version 0.4.2
• Issue 270 - Graphing a Hodograph in its own figure
• Issue 267 - Colortable reader raises SyntaxError
• Issue 260 - SkewT missing top tickmarks
• Issue 254 - Update example imports
• Issue 247 - Update readthedocs links
• Issue 204 - Fix tests for matplotlib 2.0

In this release 14 issues were closed

Pull requests

• PR 282 - Small bug fixes
• PR 280 - Update docs
• PR 274 - Improve tests
• PR 273 - Fix bug in Hodograph Object
• PR 272 - Various odd and ends
• PR 269 - fix get_wind_components see also doc string
• PR 265 - More checks
• PR 263 - MNT: Fix for gradient change in numpy 1.12
• PR 261 - More skewt fixes

In this release 10 pull requests were merged

0.4.2

Version 0.4.2 (2016/11/18)

Major changes

• Fixed units for lfc
• Improved handling of missing levels in Wyoming Upper Air Archive reader (Contributed by @kgoebber)
• Fixed extra whitespace in Skew-T images--this was especially noticeable when using the Jupyter notebook
• Fixed exception in Level3File when converting some products' values to float (e.g. differential reflectivty, correlation coefficient)

Issues closed

Issues

• Issue #259 - Regenerate skew-T examples
• Issue #257 - Disable log minor ticks on SkewT
• Issue #253 - NEXRAD Level3File map_data IndexError
• Issue #251 - lfc losing units
• Issue #197 - Skew-T figure size is a function of the rotation argument
• Issue #158 - Skew-T's have extra whitespace

In this release 6 issues were closed

Pull requests

• PR #258 - SkewT Fixes
• PR #255 - BUG: Fix mapping values for several products (Fixes #253)
• PR #252 - Cleanup
• PR #250 - update Wyoming Archive read procedure

In this release 4 pull requests were merged

0.4.1

Version 0.4.1 (2016/11/04)

Just a few small bugfixes from 0.4

Issues closed

Issues

• Issue #246 - Add conda to install guide
• Issue #245 - TextCollection broken with PathEffects and empty strings
• Issue #244 - Possible bad dates in Level3File
• Issue #233 - Problem with GINI Polar Stereographic image
• Issue #232 - Bad parcel profile
• Issue #220 - Possible error in gridding_functions.py

In this release 6 issues were closed

Pull requests

• PR #248 - Small fixes
• PR #237 - Fix parcel_profile
• PR #222 - BUG: Fix buffer argument (Fixes #220)

In this release 3 pull requests were merged

0.4

• New calculations:
  • Saturation mixing ratio (#163)
  • Equivalent potential temperature (#163)
  • Coriolis parameter (#205)
  • Level of free convection (LFC, #201)
• Added provisional support for objective analysis/regridding (#186):
  • Barnes
  • Cressman
  • Nearest neighbor
  • Natural Neighbor
  • Radial Basis Function interpolation
• Added support for downloading upper air data from Wyoming and Iowa State archives (#202)
• Bug Fixes:
  • Fixed value of omega in constants (#173)
  • Updated value of Earth's radius to match GEMPAK (#173)
  • Fixed 180 degree offset in wind direction calculation (#179)
  • Fixed potential temperature with non-millibar pressure units (#165)
• Unique authors:
  • @kpozsonyi
  • @ahaberlie
  • @deeplycloudy
  • @jrleeman
  • @dopplershift

0.3.1

• Fixes:
  • Make compatible with pint 0.7
  • #138 - Fix for polar stereographic projection in GINI files
  • #139 - Fix for Mercator projection in GINI files
  • #148 - Fix reading some TDWR NIDS products
• Other notes:
  • Use conda-forge channel now for conda packages
  • Now tested on AppVeyor for Windows
  • Improved example list in docs--now has a gallery of images from the notebooks

0.3.0

• Features:
  • Station Plots (#125): MetPy can now be used to create station plots, making use of a special weather symbols font for present weather, sky cover, cloud types, etc. The documentation has examples showing how to use this support.
  • GINI file support (#114): MetPy can read the NWS' GINI files, which are used to transmit satellite images over NOAAPORT.
  • Hodograph (#111): MetPy can be used to make hodographs (plots of wind components with height).
  • Skew-T improvements (#111): Skew-T plots are now usable with matplotlib's subplots and GridSpec.
  • Added resample_nn_1d for reducing an array of data to the points closest to a set of levels. Contributed by @ahaberlie .
• Fixes:
  • #84 - Fix relative humidity units for heat index (added our own unit to designate a percentage)
  • #81 - Fix get_with_steps for getting colortables
• Other notes:
  • Moved from nose to py.test for testing
  • Added image comparison-based tests for testing plot methods
  • Improved arrangement of documentation--removed some extra layers of nesting.

A Fixer Upper (v0.2.1)

• Added viridis colormap #75
• Added NEXRAD level 2 example #45
• Split get_speed_dir into get_wind_speed and get_wind_dir #66
• Fixed clipping of wind barbs on skewT #54
• Fixed broken NIDS attributes on Python 3 #55
• Fixed bug with units on heat_index #56
• Moved to use logging rather than warning for issues beyond user control #51
• Clarified units in get_wind_components #46
• Other minor documentation fixes

v0.2.0 - Wider release

A wider release to the community.

Changes of note:

• Use unit support from pint
• Add more turbulence calculations
• Improved test coverage
• Full documentation generation