openseppo 0.4.1

Open SEPPO Tools -- geospatial and SAR processing utilities

openSEPPO

Open SEPPO Tools — Supporting Geospatial and Remote Sensing Data Processing

openSEPPO provides open-source tools for processing and managing geospatial and SAR remote sensing data, with a focus on NASA NISAR products. The tools are designed to scale readily with the SEPPO software by Earth Big Data.

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Tools

Command	Description
seppo_nisar_gcov_convert	Convert NISAR GCOV HDF5 to Cloud Optimized GeoTIFF (COG), BigTIFF, or HDF5 subset with optional sigma0 conversion, reprojection, downscaling, and VRT time-series stacking
seppo_nisar_gcov_convert_S	S-band variant of seppo_nisar_gcov_convert
seppo_nisar_gslc_convert	Convert NISAR GSLC HDF5 complex data to COG: power, amplitude, magnitude, wrapped phase, or raw complex SLC (-cslc); supports reprojection, downscaling, and VRT stacking
seppo_nisar_coherence	Compute pairwise interferometric coherence from co-registered NISAR GSLC complex SLC files with optional crop, downscale, and reprojection
seppo_nisar_search	Search NISAR product URLs via NASA Earthdata CMR
seppo_earthaccess_credentials	Manage NASA Earthdata S3 credentials and bearer token

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Installation

See the Installation guide for full instructions including conda environment setup, pip install, and NASA Earthdata credential configuration.

Quick start:

mamba create -n openseppo -c conda-forge openseppo aria2
conda activate openseppo

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Documentation

Full documentation is hosted at openseppo.readthedocs.io.

Document	Description
Installation	Installation via conda, pip, and local clone
seppo_nisar_gcov_convert examples	Full usage examples for seppo_nisar_gcov_convert
Dual-pol ratio	Dual-pol ratio output details and formulas

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License

Apache License 2.0 — see LICENSE.

(c) 2026 Earth Big Data LLC | https://earthbigdata.com