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healpix-analyse

  • Installation
  • Overview
  • alm_latlon — Part 1: Quickstart
  • alm_latlon — Part 2: Mathematical foundations
  • alm_latlon — Part 3: API reference
    • HEALPixSHT — spherical harmonics on the full sky
    • HEALPixSHT — API reference
    • HEALPixSHT — conventions and algorithm
    • HealPixConv — gauge-equivariant convolution
    • HealPixConv — API reference
    • HealPixConv — how the geometry is built
    • Large receptive-field convolution
    • Wide-kernel convolution — one kernel image, one call
    • Pyramidal convolution — compact multiscale spherical filtering
    • HealPixDown — HEALPix resolution reduction
    • HealPixUp — HEALPix resolution increase
    • Local multiscale HEALPix decomposition
    • Multiscale divergence and curl
    • HEALPix-to-HEALPix resampling
    • Local two-dimensional FFT on HEALPix patches
    • FFT-accelerated convolution on local HEALPix patches
    • HEALPix neighbourhood reductions
    • Metric radial filtering on HEALPix
    • Directional filtering
    • Migrating projected-raster directional operations to HEALPix
    • HEALPix scalar-field gradients
    • Binary morphology
    • HEALPix connected components
    • minkowski — Differentiable Minkowski Functionals
    • GetDINOV3SAT — DINOv3 embeddings of HEALPix data
    • Notebooks
    • API Reference
    • Changelog
    • License
  • GitHub
  • Installation
  • Overview
  • alm_latlon — Part 1: Quickstart
  • alm_latlon — Part 2: Mathematical foundations
  • alm_latlon — Part 3: API reference
  • HEALPixSHT — spherical harmonics on the full sky
  • HEALPixSHT — API reference
  • HEALPixSHT — conventions and algorithm
  • HealPixConv — gauge-equivariant convolution
  • HealPixConv — API reference
  • HealPixConv — how the geometry is built
  • Large receptive-field convolution
  • Wide-kernel convolution — one kernel image, one call
  • Pyramidal convolution — compact multiscale spherical filtering
  • HealPixDown — HEALPix resolution reduction
  • HealPixUp — HEALPix resolution increase
  • Local multiscale HEALPix decomposition
  • Multiscale divergence and curl
  • HEALPix-to-HEALPix resampling
  • Local two-dimensional FFT on HEALPix patches
  • FFT-accelerated convolution on local HEALPix patches
  • HEALPix neighbourhood reductions
  • Metric radial filtering on HEALPix
  • Directional filtering
  • Migrating projected-raster directional operations to HEALPix
  • HEALPix scalar-field gradients
  • Binary morphology
  • HEALPix connected components
  • minkowski — Differentiable Minkowski Functionals
  • GetDINOV3SAT — DINOv3 embeddings of HEALPix data
  • Notebooks
  • API Reference
  • Changelog
  • License
  • GitHub

Section Navigation

  • convert ERA5 data into healpix using ALM
  • Data from tina notebook’s S2
  • RWRAP round-trip test
  • Local FFT geometry and round trip
  • Local FFT on Sentinel-2
  • Large receptive-field convolution
  • FFT large-kernel convolution
  • HealPixDecomp: local multiscale decomposition
  • Global-to-local validation of multiscale HEALPix divergence and curl
  • Notebooks

Notebooks#

Interactive Jupyter notebooks demonstrating the main features of healpix-analyse.

  • convert ERA5 data into healpix using ALM
  • comput div,curl from u,v field
  • Data from tina notebook’s S2
  • Test with S2 l2a
  • RWRAP round-trip test
  • Local FFT geometry and round trip
  • Local FFT on Sentinel-2
  • Large receptive-field convolution
  • FFT large-kernel convolution
  • HealPixDecomp: local multiscale decomposition
  • get DATA
  • Global-to-local validation of multiscale HEALPix divergence and curl
  • Physical spectral divergence and curl

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GetDINOV3SAT — DINOv3 embeddings of HEALPix data

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convert ERA5 data into healpix using ALM

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