Download and apply the extended time annotation dataset (ETAD) product to a sentinel-1 SLC.
This notebook fills a gap to demonstrate the complete process of downloading all required files and applying the ETAD product to generate a corrected Sentinel-1 SLC product.
The Extended Timing Annotation Dataset (ETAD) for Copernicus Sentinel-1 is a new auxiliary product developed by ESA (with DLR as contractor), providing users with corrections to improve geometric accuracy of Sentinel-1 SLC images to centimetric levels. For more information see - https://sentinels.copernicus.eu/web/sentinel/missions/sentinel-1/data-products/etad-dataset.
ETAD NetCDF structure. Each product covers a complete Sentinel-1 data-take following the SLC product structure. The correction layers are regularly sampled 2-D grids with approximately 200 m resolution that are grouped at burst level. Credit ESA (https://sentinels.copernicus.eu/web/sentinel/missions/sentinel-1/data-products/etad-dataset)
The ETAD.ipynb notebook demonstrates how to download and apply an ETAD product to a sentinel-1 SLC.
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A package management tool such as mamba (recommended) or anaconda is required
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conda env create -f environment.yaml -
Run the ETAD.ipynb notebook
Two sets of credentials are required and should be set in the notebook:
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Earthdata credentials - https://urs.earthdata.nasa.gov/users/new
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Copernicus dataspace credentials - https://dataspace.copernicus.eu/