v0.3.19 (Apr 7, 2026)

New Feature

• Added skyborn.plot.scatter for gridded map and profile stippling with
  NCL-style display-space thinning.

• Added skyborn.plot.scatter to the explicit skyborn.plot public API.

• Added focused plotting tests, examples, and documentation for the new
  scatter-stippling workflow.

• Implemented the public scatter entry point in its own
  skyborn.plot.scatter module so the display-space thinning logic stays
  isolated and easier to maintain.

• Added skyborn.plot.vector as the unified public facade for the
  curly-vector feature family:

  • skyborn.plot.vector.curly_vector
  • skyborn.plot.vector.curly_vector_key
  • skyborn.plot.vector.CurlyVectorPlotSet
  • skyborn.plot.vector.CurlyVectorKey

• Consolidated the curly-vector implementation into
  skyborn.plot.vector so the public wrapper logic and the low-level
  vector helper surface now live in one top-level module.

• Removed the separate top-level implementation files
  ncl_vector.py, vector_key.py, and vector_plot.py from
  skyborn.plot.

• Kept historical module imports working through package-level
  compatibility aliases, so existing imports do not need to break
  immediately.

• Narrowed the skyborn.plot package-root export surface so the common
  public entry points are now function-first:

  • skyborn.plot.curly_vector
  • skyborn.plot.curly_vector_key
  • skyborn.plot.scatter
  • skyborn.plot.add_equal_axes
  • skyborn.plot.createFigure

• Removed the temporary package-level compatibility aliases for the deleted
  historical modules skyborn.plot.ncl_vector, skyborn.plot.vector_key,
  and skyborn.plot.vector_plot.

• Updated plotting examples and user-facing documentation to recommend
  skyborn.plot.vector as the module-oriented import path for curly-vector
  usage while preserving the existing package-level skyborn.plot exports.

Interpolation

• Enhanced model-level interpolation in
  skyborn.interp.interpolation.

• Improved skyborn.interp.interp_hybrid_to_pressure so hybrid-sigma to
  pressure remapping now chooses a more suitable execution path for ordinary
  in-memory arrays and Dask-backed arrays instead of always forcing the older
  chunked workaround.

• Added public hybrid-level diagnostics:

  • skyborn.interp.pressure_at_hybrid_levels
  • skyborn.interp.delta_pressure_hybrid

• Improved below-ground temperature extrapolation support in the hybrid-level
  interpolation workflow while keeping compatibility with the older Skyborn
  helper calling pattern.