SENTINEL1 OVERVIEW AND RELATED ACQUISITION PLANS FORESTS AND

SENTINEL-1 OVERVIEW AND RELATED ACQUISITION PLANS: FORESTS AND AGRICULTURE Johannes Roeder / Pierre Potin ESRIN 26/02/2014 ESA UNCLASSIFIED – For Official Use

I. Sentinel-1 mission overview Sentinel-1 Mission Facts • Constellation of two satellites (A & B units) • C-Band Synthetic Aperture Radar Payload (at 5. 405 GHz) • 7 years design life time with consumables for 12 years • Near-Polar sun-synchronous (dawn-dusk) orbit at 698 km • 12 days repeat cycle (1 satellite), 6 days for the constellation • Both Sentinel-1 satellites in the same orbital plane (180 deg phased in orbit) • Optical Communication Payload (OCP) for data transfer via laser link with the GEO European Data Relay Satellite (EDRS) • Launch of Sentinel-1 A scheduled for 03 April 2014 (Sentinel-1 B ready for launch by end 2015) ESA UNCLASSIFIED – For Official Use

I. Sentinel-1 mission overview Sentinel-1 Mission Facts Sentinel-1 A major milestones QAR KO (Satellite Qualification Review) January 13 th, 2014 QAR Conclusion February 18 th, 2014 Arrival in Kourou and start of Launch Campaign February 24 st, 2014 Launch April 3 th, 2014 ESA UNCLASSIFIED – For Official Use

I. Sentinel-1 mission overview Sentinel-1 SAR imaging modes 4 mutually exclusive SAR modes with different resolution and coverage • Polarisation schemes for IW, EW & SM: ü single polarisation: HH or VV ü dual polarisation: HH+HV or VV+VH • Wave mode: HH or VV • SAR duty cycle per orbit: ü up to 25 min in any of the imaging modes ü up to 74 min in Wave mode Slide 4 ESA UNCLASSIFIED – For Official Use Main modes of operations: - IW over land coastal waters (normally VV or VVVH polarization) - EW over extended sea (VV or VVVH) and sea-ice (HH or HHHV) areas - WV over open oceans

II. Sentinel-1 acquisition plans Sentinel-1 observation scenario objective In line with the Sentinel operations strategy objectives: Implement pre-defined and conflict-free observation plans, aiming at fulfilling, . to the best extent, the observation requirements from: - the Copernicus services - the use by ESA / EU Member States In addition, on a best effort basis: - ensure continuity of ERS/ENVISAT - implement requirements from the science community - contribute to international cooperation activities. During the ramp-up phase: Start serving selected project needs located outside already established observation zones on a best effort basis Need to find a priori the solutions for potential conflicts among users (e. g. different SAR operation modes / polarisation required over the same geographical area) Build substantial archives ESA UNCLASSIFIED – For Official Use

II. Sentinel-1 acquisition plans Sentinel-1 gradual capacity increase (ramp-up) triggers: Data download & sensing time ESA UNCLASSIFIED – For Official Use Slide 6

II. Sentinel-1 acquisition plans Basic observation characteristics (excerpt) Mode Swath Wide Stripmap (SM) 80 km Interferrometric Wide Swath (IWS) 250 km Extra Wide Swath (EWS) 400 km Wave (WV) 20 x 20 km Standard production PRODUCT RESOLUTION (rg. X az. ) No. of looks GRD-MR 88 x 87 m GRD-HR SLC (selected areas only) Standard mode – polarization combinations Over land* IWS VV or VVVH 22 x 5 Major ice-caps IWS HH 20 x 22 m 5 x 1 Sea-ice* EWS HH or HHHV 2. 7 -3. 5 x 17. 4 m 1 x 1 (European) marginal seas* IWS or EWS VV or VVVH * Some exceptions ESA UNCLASSIFIED – For Official Use

II. Sentinel-1 acquisition plans Sentinel-1 major observation scenario constituents for the first 6 month Ø Consistent European coverage Ø Sea-ice, -state, maritime surveillance Ø Major risk areas (tectonic and Ø High frequent two-pass volcanic activity) coverage of tectonically. . and volcanic active areas Ø Based on requests by Ø Served bi-cyclic COPERNICUS services mapping and Ø Zonal global background Ø Various further requests for smaller EU/ESA member-states Ø Drought zones taken from FAO local to regional zones to be Ø Based on requests by EU/ESA global climate map, extrapolated acquired member-states and science to countrywide wall-to-wall Ø during repetitive coverages campaigns (e. g. iceØ IWS mode, VVVH polarization shields) Ø One pass Ø with medium frequency Ø Following multiple requests, main Ø with seasonality trigger flood reference mapping Ø to be gradually introduced into the routine ESA Presentation | Johannes Roeder / Pierre Potin | ESRIN | 26/02/2014 | Slide 8 observation scenario ESA UNCLASSIFIED – For Official Use

II. Sentinel-1 acquisition plans Sentinel-1 - Focus forest (reference data set) Ø 13 reference data sets Ø One especially dedicated to forestry (Sumatra) Ø public available shortly after IOCR Ø high frequency (<=12 d) Ø to be continued throughout whole mission ESA Presentation | Johannes Roeder / Pierre Potin | ESRIN | 26/02/2014 | Slide 9 ESA UNCLASSIFIED – For Official Use

II. Sentinel-1 acquisition plans Sentinel-1 - Focus forest (South America) Sentinel-1 – GFOI support South America - regular interferometry campaign - Sentinel-1 – GFOI support South America - During forestry campaign - Polarization switch 4 times / a during ramp up Tectonically active areas & volcanoes monitoring ESA Presentation | Johannes Roeder / Pierre Potin | ESRIN | 26/02/2014 | Slide 10 ESA UNCLASSIFIED – For Official Use

II. Sentinel-1 acquisition plans Sentinel-1 - Focus forest (East Africa) Sentinel-1 – GFOI support East Africa - regular interferometry campaign - Sentinel-1 – GFOI support East Africa - During forestry campaign - Polarization switch 4 times / a during ramp up Tectonically active areas & volcanoes monitoring ESA Presentation | Johannes Roeder / Pierre Potin | ESRIN | 26/02/2014 | Slide 11 ESA UNCLASSIFIED – For Official Use

II. Sentinel-1 acquisition plans Sentinel-1 - Focus agriculture (SE - Asia) Support to GEOGLAM Phase 1 a: Ø 4 rice test-beds Ø Every 24 days Ø IWS mode, VVVH polarization ESA Presentation | Johannes Roeder / Pierre Potin | ESRIN | 26/02/2014 | Slide 12 ESA UNCLASSIFIED – For Official Use

II. Sentinel-1 acquisition plans Sentinel-1 - Focus SE-Asia Ø Overpass (UTC): Ø ASC: ca. 11: 00 -11: 30 Ø DESC: ca. 23: 00 -23: 30 Ø Only small swath overlap due to equator closeness ESA Presentation | Johannes Roeder / Pierre Potin | ESRIN | 26/02/2014 | Slide 13 ESA UNCLASSIFIED – For Official Use

Perspective SE-Asia Potential for a frequent-revisit zone On the SE-Asian Peninsula: Ø Clustering of requirements in the region Ø Sufficient resources may become available last quarter 2014 Ø Potentially one-pass coverage, dual polarization (VVVH) Ø Under discussion and evaluation ESA Presentation | Johannes Roeder / Pierre Potin | ESRIN | 26/02/2014 | Slide 14 ESA UNCLASSIFIED – For Official Use

Sentinel-1 acquisition plans Sentinel-1 observation scenario constituents Keep updated - follow Sentinel-1 on the web: Further information on Sentinel-1 observation scenarios will become available at ESA`s ‘Sentinel online’ website including: Ø A detailed description of the Sentinel-1 observation scenario for the ramp-up phase before launch (HLOP already present) Ø Consolidated observation plans (will allow to browse through strips) successively for the ramp-up phase published during the commissioning THANK YOU! ESA Presentation | Johannes Roeder / Pierre Potin | ESRIN | 26/02/2014 | Slide 15 ESA UNCLASSIFIED – For Official Use

II. Sentinel-1 acquisition plans Sentinel-1 major observation scenario constituents for the first 6 month Ø Consistent European coverage Ø Sea-ice, -state, maritime surveillance Ø Major risk areas (tectonic and volcanic activity) Ø Based on requests by COPERNICUS services and EU/ESA member-states ESA Presentation | Johannes Roeder / Pierre Potin | ESRIN | 26/02/2014 | Slide 16 ESA UNCLASSIFIED – For Official Use

II. Sentinel-1 acquisition plans Sentinel-1 major observation scenario constituents for the first 6 month Ø High frequent two-pass coverage of tectonically and . volcanic active areas Ø Served bi-cyclic Ø Based on requests by EU/ESA member-states and science ESA Presentation | Johannes Roeder / Pierre Potin | ESRIN | 26/02/2014 | Slide 17 ESA UNCLASSIFIED – For Official Use

II. Sentinel-1 acquisition plans Sentinel-1 major observation scenario constituents for the first 6 month Ø Zonal global background mapping Ø Drought zones taken from FAO global climate map, extrapolated to countrywide wall-to-wall coverages Ø IWS mode, Ø VVVH polarization Ø One pass Ø Following multiple requests, main trigger flood reference mapping ESA Presentation | Johannes Roeder / Pierre Potin | ESRIN | 26/02/2014 | Slide 18 ESA UNCLASSIFIED – For Official Use

Sentinel-2: Possible steps during ramp-up scenario (under consolidation) - Phase 1: ~3 -4 months, Phase 2: ~4 -5 months 1) 1) -2) transition 2 a) 2 b) ESA Presentation | Johannes Roeder / Pierre Potin | ESRIN | 26/02/2014 | Slide 19 ESA UNCLASSIFIED – For Official Use

Data Access Layer Sentinel Data Access Different infrastructures adapted to different user typologies Copernicus Services Access Scientific / Other Access ESA Collaborative Access Operated by ESA MSs National Mirrors (Inc. Mirrors local National (Inc local station) Mirrors station) Copernicus Services Scientific / Other users ESA MSs Collaborative Users ESA funded R&D projects EU International Agreements Infrastructure Operated by int. partners International al Mirrors International (Inc local station) Mirrors International users The Sentinel Data Policy and the funded operational accesses offer a dedicated access per user type potentially complemented by additional data ESA UNCLASSIFIED – For Official Use retrieval points