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GI2.4/NH6.5

Sentinel 1 and 2 for Science (co-organized)
Convener: Yves-Louis DESNOS  | Co-Conveners: Yngvar Larsen , Pau Prats , Riccardo Lanari , Raphaël GRANDIN , Michael Foumelis , Andrew Hooper , Bianca Hoersch , Benjamin Koetz , Olivier Arino , Patrick Hostert 
Orals
 / Thu, 27 Apr, 08:30–10:00  / Room D2
Posters
 / Attendance Thu, 27 Apr, 17:30–19:00  / Hall X4
The Sentinel-1 mission is the European Imaging Radar Observatory for the Copernicus joint initiative of the European Commission (EC) and the European Space Agency (ESA). The mission is composed of a constellation of two satellites, Sentinel-1A and Sentinel-1B, sharing the same orbital plane and featuring a short repeat cycle of 6 days optimised for SAR interferometry science and applications. The imaging radar operates at C-band in four exclusive acquisition modes with different resolution (down to 5 m) and swath coverage (up to 400 km). In addition it provides dual polarisation capability and the ground segment is ensuring rapid product delivery (typically less than 3 hours). Synthetic Aperture Radar (SAR) has the advantage of imaging during day or night and under all weather conditions.
The pre-programmed operation mode of Sentinel-1 ensures a consistent data archive which is most suitable for INSAR applications using long time series. In particular over land, the Interferometric Wide swath mode of S-1 is using the Terrain Observation by Progressive Scans (TOPS) methodology. This new mode provides large-scale mapping capability (swath width of 250 km) and high revisiting frequency, while retaining high spatial resolution.

Sentinel-1A and -1B were launched in April 2014 and April 2016, respectively. The full operation capacity is foreseen after the in-orbit commissioning phase of the Sentinel-1B satellite by September 2016.
Sentinel-1 data are freely available via the ESA’s Sentinels Scientific Data Hub since October 2014. The data uptake by the science community has been unprecedented and numerous results have been published to date.
In this half session, all scientists exploiting the Sentinel -1 constellation for interferometry science and applications are cordially invited. The objective of the session is to present latest results in scientific exploitation of Sentinel-1 TOPS interferometry and discuss the potential for new applications and future services.
The pre-programmed operation mode of Sentinel-1 ensures avoidance of conflicts, building in the meanwhile a consistent long-term data archive most suitable for INSAR applications based on long time series. In particular, the main operational mode of Sentinel-1 over land, the Interferometric Wide swath (IW) mode, implemented using the Terrain Observation by Progressive Scans (TOPS) mode, provides large-scale mapping capability (swath width of 250 km) and high revisiting frequency, retaining ground resolution at 5×20m in range and azimuth, respectively.
Following the launch of the Sentinel-1A in April 2014 and successful in-orbit commissioning phase completed in September 2014, the gradual release of the operationally qualified products to the science community via the ESA’s Sentinels Scientific Data Hub has started since October 2014. The full operation capacity is foreseen after the in-orbit commissioning phase of the Sentinel-1B unit by end 2016.In this half session, all scientists exploiting the main Sentinel modes (TOPS) for interferometry science and applications are cordially invited. The objective of the session is to present, demonstrate and discuss the state-of-the-art in scientific exploitation of Sentinel-1 TOPS interferometry and the potential for new applications and future services.

The SENTINEL-2 mission is the European Multispectral Imaging Mission for the Copernicus joint initiative of the European Commission (EC) and the European Space Agency (ESA). The SENTINEL-2 mission includes 13-spectral band multispectral optical imager with different resolution (down to 10 m) and a swath width of 290km. The mission is composed of a constellation of two satellite units, SENTINEL-2A and SENTINEL-2B, sharing the same orbital plane and featuring a short repeat cycle of 5 days at the equator optimized to mitigate the impact of clouds for science and applications. SENTINEL-2 allows exploitation for a variety of land and coastal applications such as agriculture, forestry, land cover and land cover change, urban mapping, emergency, as well as inland water, ice, glaciers and also coastal zone and closed seas applications. Following the launch of the Sentinel-2A in June 2015 and successful in-orbit commissioning phase completed in October 2015, the release of the products to the user community via ESA’s Sentinels Scientific Data Hub has started as of has started in December 2015. The full operation capacity is foreseen after the in-orbit commissioning phase of the Sentinel-2B unit in mid 2017. In this session, all scientists exploiting the main Sentinel-2 science and applications are cordially invited. The objective of the session is to present, demonstrate and discuss the state-of-the-art in scientific exploitation of Sentinel-2 data and the potential for new applications and future services.