insardev-pygmtsar 2026.3.21

InSAR.dev (Python InSAR): PyGMTSAR backend

InSAR.dev PyGMTSAR

Sentinel-1 SLC preprocessing library for Python.

Features

• Per-burst Sentinel-1 TOPS SLC preprocessing — independent processing of each burst, no frame stitching
• Geometric coregistration — bursts aligned to a reference via radar-to-geographic transforms with differential topo phase correction between reference and repeat geometries
• Dual-polarization support — all polarization channels (VV+VH or HH+HV) processed together
• Precise orbit integration — automatic application of restituted and precise orbit files
• DEM preparation — geocoding and coordinate transformations to a common geographic grid
• User-defined coordinate system and resolution — output in any EPSG projection at any resolution, from small large-area overviews to precise local analysis grids
• Solid Earth tidal phase correction — per-date tidal displacement projected onto the radar line-of-sight using IERS 2003 solid Earth tide model and satellite look vectors, computed efficiently via 2×2 radar-grid corner interpolation
• Geocoded Zarr output — burst stacks stored as Zarr v3 with per-pixel azi, rng, and elevation

License

This software is released under the BSD 3-Clause License. See LICENSE for full terms.

Contact

• Author: Aleksei Pechnikov
• Email: [e-mail]
• ORCID: https://orcid.org/0000-0001-9626-8615

Bug Reports

Bug reports and suggestions are welcome via the project's issue tracker.