Sentinel-1 is currently the only system to provide SAR images regularly on all
lands on the planet. Access to these time series of images opens an
extraordinary range of applications. In order to meet the needs of a large
number of users, including our needs, we have created an automatic processing
chain to generate *"Analysis Ready"* time series for a very large number of
applications.
With **S1Tiling**, Sentinel-1 data is ortho-rectified on the Sentinel-2 grid to
promote joint use of both missions.
`Sentinel-1
<https://sentinels.copernicus.eu/web/sentinel/missions/sentinel-1>`_ is
currently the only mission to provide long time series of Synthetic Aperture
Radar (SAR) data over land. In order to generate *"Analysis Ready Data"* for
various related application, CNES, in collaboration with CESBIO, have created
and developed since several years an operational processor to generate
calibrated and ortho-rectified Sentinel-1 data on the Sentinel-2 grid:
**S1Tiling**.
With this Python software, users can easily use jointly Sentinel-1 and
Sentinel-2 time series.
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@@ -33,20 +35,15 @@ promote joint use of both missions.
:alt: The orthorectified result
:align: left
**S1Tiling** was developed within the CNES radar service, in collaboration with
CESBIO, to generate time series of calibrated, ortho-rectified and filtered
Sentinel-1 images on any lands on the Earth. The tool benefits for the SAR
ortho-rectification application
`from the Orfeo Tool Box <https://www.orfeo-toolbox.org/>`_.
**S1Tiling** was developed as an open source project by CNES based on the
existing CNES open source project `Orfeo Tool Box <https://www.orfeo-toolbox.org/>`_.
The resulting images are registered to Sentinel-2 L2 optical images, using the
same MGRS geographic reference grid (`S2 tiling system - kml file <https://sentinel.esa.int/documents/247904/1955685/S2A_OPER_GIP_TILPAR_MPC__20151209T095117_V20150622T000000_21000101T000000_B00.kml>`_).
This Python software, is based on the Orfeo Tool Box (OTB) image processing
library, developed by CNES. Different Sentinel-1 data providers can be used
The resulting images are gridded to Sentinel-2 MGRS geographic reference grid (`S2 tiling system - kml file <https://sentinel.esa.int/documents/247904/1955685/S2A_OPER_GIP_TILPAR_MPC__20151209T095117_V20150622T000000_21000101T000000_B00.kml>`_).
Different Sentinel-1 data providers can be used
like `PEPS <https://peps.cnes.fr/>`_ or `Copernicus Scihub <https://scihub.copernicus.eu>`_.
It can be used on any type of platform, from a large computing cluster to a
laptop (the fan will make some noise during processing). It is considerably
faster than the ortho-rectification tool in SNAP, and can be easily used in
faster than the ortho-rectification tool in ESA SNAP software with similar results and can be easily used in
script form.
S1Tiling is currently used for many applications, such deforestation detection
Luc Hermitte authored