2025.6.1

Minor changes

• Updated dependencies
• Now using pyproj 3.7.1, pre-downloading geoid grids to avoid concurrency issues in converting DEM coordinates to ECEF
  • See: pyproj4/pyproj#1499
• Display DEM name in log messages at download

2025.6.0

Minor improvements and fixes

• Added a sample EODAG config file.
• Added an orbit directory parameter to each processing function.
• Fixed some type hints where types were wrong or incomplete
• Updated type hints to adopt a more modern convention
• Fixed some parameter checks at the beginning of processing functions (e.g. replaced coherence with write_coherence)
• Fixed some output paths in test scripts to match the processor outputs
• Upgraded dependencies

2025.4.0

New features

• Introducing the H-Alpha dual-polarimetric decomposition from SLC images.
• Added tutorial notebooks for the docker, conda versions and docs.
• The new examples demonstrate EO-Tools ability to process Sentinel-1C products.

Other (improvements, bugfixes, refactoring, maintenance)

• Adapted the geocode_and_merge function to handle file names without polarimetry such as alpha_iw1.tif
• Unit tests for H-Alpha components including a single mechanism simulation.
• Change tooltips to popups in show_all_s1_on_map.py allowing copy and paste product names.
• Update environment to use the latest rioxarray since the bug in 0.18.0 has been fixed.
• Force using pyroSAR==0.29.0 to process Sentinel-1C data.

2025.2.0

This version does not introduce any new features but adds fixes and improvements.

Breaking change

• Improved parameter name consistency. All variable and parameters that had file, dir and path in them have been renamed following the model xxx_{file|dir|path}. This means some function calls have changed. Please refer to the API reference page in the docs to see the updated parameters.

Other

• Use EODAG latest version, changed outputs_prefix parameter to output_dir and remove unpacking from search return.
• Force using rioxarray 0.17.0 until the bug with >=0.18.0 is fixed.
• Docker only: functions using TiTiler now show the error message returned by the endpoint request instead of a KeyError exception. This makes debugging easier.
• Test script that checks if EODAG search and download requests work.
• Preparing Sentinel1-C support by changing regex in burst processor (although for now S1C processing is not working due to pyrosar identify not recognizing the products).

2025.1.1

New feature

• New dem_name parameter for SLC and InSAR processors which allows to choose from a list of publicly available DEMs (nasadem: SRTM, alos-dem: ALOS World 3D, cop-dem-glo-30 Copernicus DEM 30m and cop-dem-glo-90 Copernicus DEM 90m)
• Important note: because of changes in DEM metadata, it is recommended to clean all auto-downloaded DEM files or use dem_force_download=True before reprocessing any data after upgrading to this version.

Bug fixes and improvements

• Add some more tests for S1.core functions (deramping, burst overlap, phi topo,)
• Test script for cop-dem-glo-30 DEM based insar processing
• Test script comparing SLC processing for all available DEMs
• Fix: use max_burst_ instead of max_burst in burst geometry filtering (fetch_dem function)
• Remove unused dem_profile output from geocode_burst
• DEM files now have a special tag COMPOSITE_CRS encoding both lat-lon and vertical reference coordinate system. This tag is added by fetch_dem, extracted by load_dem_coords and used by lla_to_ecef to convert the DEM to ECEF coordinates.

2025.1.0-build2

Bug Fix:

• Fixed a bug in the shadow detector: an offset needed to be added to indices when projecting in the ground geometry to avoid kernel crash.

Details:

• This is the second build of version 2025.1.0. The first build (2025.1.0-1) involved an update to the Conda recipe without code changes.

2025.1.0

New features

• Radiometric terrain correction (or flattening) is now available in the SLC processor
• Our algorithm differs from the SNAP implementation. This is actually a modified version of the radiometric normalization algorithm described in SNAP's terrain correction documentation (see https://step.esa.int/main/wp-content/help/versions/9.0.0/snap-toolboxes/org.esa.s1tbx.s1tbx.op.sar.processing.ui/operators/RangeDopplerGeocodingOp.html). Two things are different:
  • Instead of the sine of the projected incidence angle, the tangent is computed to comply with the gamma nought convention (as in Small's algorithm).
  • The simulated backscatter is regridded and accumulated in the SAR geometry to account for the many-to-one and one-to-many relationships.
• Shadows are detected and set to NaNs in the normalized image.
• Added tutorial notebooks to demonstrate feature usage.

Bugfixes and improvements

• Add libgdal jpeg dependency to work with the new version of rasterio.
• Temporary fix: latest pyproj version was introducing a bug in the computation of the DEM XYZ coordinates. Force to use the previous version.
• Refactored both InSAR and SLC processors: we do not use child processes anymore and set the GDAL_CACHEMAX value to a small number. Benchmarks showed smaller memory usage than previously and no performance loss.
• Fixed some exceptions in the processors (the raise keyword was missing leading the exception to not be triggered).

2024.10.1

New features

• Better S1 coherence estimator
  • Multilooking is performed prior to coherence computation
  • It is applied to Each individual term in the coherence expression
  • This way larger sample sizes can be collected even with small boxcar windows
  • It avoids averaging the coherence itself (theoretically sounder)
  • Binary erosion is applied to mitigate discontinuities at subswath borders
  • Default multilook is still [1, 4] but coherence window size is now [3, 3]

Bugfixes

• Fixed an error with DEM download due to Planetary Computer now requiring signed urls

Other

• Upgraded dependencies

2024.10.0

New features

• Sentinel-1 zipped products are now handled (updated all notebooks accordingly).
• InSAR processing of partially overlapping products, for instance between S1A and S1B, as long as share the same orbit.

Other

• Refactored block processing utility to handle larger overlap.
• Goldstein filter now uses different block size (32) and overlap results in smaller final block size.
• Added Etna notebook to illustrate partial overlap in InSAR (docker version only)
• Simple script that shows all S1 products located in a directory on a map (not part of the conda package)

2024.9.2

New features

• New function S1.process.goldstein: the Goldstein interferometric filter is an adaptive method that allows to reduce noise on phase.
• Tutorial notebooks on how to use the function
• All file names like "ifg*" are now treated as interferograms by S1.process.geocode_and_merge_iw. This way users can compare several phase filtering methods easily.

Bugfixes

• Correct options for orbit retrieval ['POE', 'RES'] using pyrosar
• In S2.process_tiles, baseline > 4 replaced by baseline >= 4
• In S1.process.coherence output is tiled like input

Misc

• S1.process.coherence with manually fixed chunk size is faster.