Sarsen

Algorithms and utilities for SAR sensors. Enables cloud-native SAR processing via Xarray and Dask.

Target features

Overall the software is in early alpha phase and the usual caveats apply.

• provides algorithms to terrain-correct satellite SAR data
  • geometric terrain correction (geocoding)
    • fast mode: to terrain-correct images
    • accurate mode: for interferometric processing
  • radiometric terrain correction (gamma flattening)
• SAR data access via xarray-sentinel:
  • supports all Sentinel-1 data products as distributed by ESA:
    • Sentinel-1 Single Look Complex (SLC) SM/IW/EW/WV
    • Sentinel-1 Ground Range Detected (GRD) SM/IW/EW/WV
  • reads uncompressed and compressed SAFE data products on the local computer or on a network via fsspec
• DEM data access via rioxarray:
  • reads local and remote data in virtually any raster format via rasterio / GDAL
• supports larger-than-memory and distributed data access and processing via dask

Non-objectives / Caveat emptor

• No attempt is done to support UTC leap seconds. Observations that include a leap second may crash the code or silently return wrong results.

Usage

>>> import sarsen

Project resources

Contributing

The main repository is hosted on GitHub, testing, bug reports and contributions are highly welcomed and appreciated:

https://github.com/bopen/sarsen

Lead developer:

• Alessandro Amici - B-Open

Main contributors:

• Aureliana Barghini - B-Open

See also the list of contributors who participated in this project.

Sponsoring

B-Open commits to maintain the project long term and we are happy to accept sponsorships to develop new features.

We wish to express our gratitude to the project sponsors:

• Microsoft

License

Copyright 2016-2022 B-Open Solutions srl

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.