vhr-py6s¶

Overview¶

vhr-py6s runs Py6S-only atmospheric correction on discovered WorldView scenes. It can optionally orthorectify the corrected raster afterward.

Installation¶

pip install "vhrharmonize[py6s]"

This installs Py6S and a packaged 6S executable (from 6s-bin) as Python ependencies. If the packaged executable is unavailable or fails on your platform, run pip install Py6S, then follow the Py6S installation guide to install 6S manually. Pass its executable path using --py6s-executable if its not included in sys.path.

Usage¶

vhr-py6s \
  --input-dir /data/worldview_batch \
  --output-dir /data/py6s_only \
  --output-suffix _py6s \
  --py6s-atmosphere-profile user \
  --py6s-aerosol-profile maritime \
  --py6s-auto-atmos-source nasa_power

vhr-py6s \
  --input-dir /data/worldview_batch \
  --output-dir /data/py6s_only \
  --output-suffix _py6s \
  --epsg 6635 \
  --dem-file-path /data/dem.tif

Discovery and outputs: --config-yaml, --input-dir, --filter-basename, --output-dir, --output-suffix
Optional orthorectification after Py6S: --epsg, --dem-file-path, --keep-intermediate-py6s
Py6S atmosphere controls: --py6s-atmosphere-profile, --py6s-aerosol-profile, --py6s-aot550, --py6s-visibility, --py6s-water-vapor, --py6s-ozone
Output scaling: --py6s-output-scale-factor, --py6s-output-dtype, --py6s-executable
Calibration toggles: --py6s-use-imd-radiance-calibration/--no-py6s-use-imd-radiance-calibration, --py6s-use-worldview-gain-offset-adjustment/--no-py6s-use-worldview-gain-offset-adjustment
Auto atmosphere controls: --py6s-auto-atmos-source, --py6s-auto-atmos-grid-size, --py6s-auto-atmos-search-days, --py6s-auto-atmos-timeout-s, --py6s-auto-atmos-power-endpoint