Sentinel1 and 2 Core Data Frank Martin Seifert

Sentinel-1 and -2 Core Data Frank Martin Seifert EO Science and Applications Division ESA Earth Observation Programme SDCG-7 | 5 March 2015 | Sydney

Sentinel-1 Mission • C-band SAR imaging mission in continuation of ERS and Envisat • 7 years design life time with consumables for 12 years • 12 days repeat cycle (1 satellite), 6 days for the 2 satellite constellation • Up to 25 minutes duty cycle in any of the image modes • 4 mutually exclusive SAR modes with different resolution and coverage Main modes of operations: - IW over land coastal waters (normally VV or VV/VH polarization) - EW over extended sea (VV or VV/VH) and sea-ice (HH or HH/HV) areas - WV over open oceans

Copernicus Sentinel Data Policy = FREE and OPEN access Ø Joint COM/ESA Sentinel Data Policy Principles have been prepared in 2009 adopted by ESA MSs in Sep 2009 Ø EU Delegated Act on Copernicus Data and Information Policy has been adopted in 2013 (C(2013)4311, final) Copernicus Sentinel Data Policy Ø ESA got approval of updated Sentinel Data Policy from its Member States in Sep 2013. Main principles of Sentinel data policy: Ø Open access to Sentinel data by anybody and for any use Ø Free of charge data licenses Ø Restrictions possible due to technical limitations or security constraints

Sentinel Data Access Sentinel-1 A Data Flow Open to all users since 3 rd October at: sentinel. esa. int

Sentinel-1 data available! Sentinel-1 A Data Flow Open to all users since 3 rd October at: https: //scihub. esa. int • Max 2 concurrent downloads • Currently 2 months rolling archive

Sentinel-1 for GFOI Several GFOI priority areas have been acquired during the Sentinel-1 ramp-up phase (overall / dual-pol scenes): • Colombia: 521 / 21 • Ecuador: 236 / 0 • Peru: 574 / 5 • Tanzania: 452 / 61 • Kenya: 269 / 34 • Uganda: 211 / 30 • Cameroon: 19 / 11 • DRC: 198 / 36 • Cambodia: 44 / 30 • Viet-Nam: 253 / 99 • Sumatra: 379 / 150

Sentinel-1 over Colombia: 521 VV/VH

Sentinel-1 over Kenya: 269 VV 34 VV/VH

Sentinel-1 over Kenya Cambodia: 44 VV 30 VV/VH Vietnam: 253 VV 99 VV/HV

Sentinel-1 over Australia: yyy VV/VH

Sentinel-1 Cycle 42 Australia:

Sentinel-1 Cycle 41

Sentinel-1 Cycle 42 Australia:

Sentinel-1 - in the full operational configuration of two satellites - will be a workhorse forest monitoring: • with high repetition rates and independence from cloud coverage to provide early warning on forest disturbances; • in synergy with optical sensors to ensure monitoring of heavily cloud covered areas; • with frequent coverage to estimate biomass in low carbon forests (e. g. in the boreal zone); • Sentinel-1 A data are available since 3 October 2014 on a rolling archive at https: //scihub. esa. int • The Routine Operations Readiness Review (RORR) is planned for April/May 2015. http: //sentinel. esa. int

Sentinel- 2 Mission Feature Description Spacecrafts 2 operating in twin configuration Instrument MSI (Multi-Spectral Instrument) operating in pushbroom principle (filter based optical system) Spectral bands Spatial Resolution Swath Orbit Revisit Periodicity 13 (VIS–NIR–SWIR) 10 m / 20 m / 60 m 290 km Sun-synchronous at 786 km (14+3/10 revs per day), with LTDN 10: 30 AM 10 -day with 1 satellite 5 day with 2 satellites Lifetime 7. 25 years, extendable to 12 years Launch Planned for Mid June 2015

Spot-5 / Take-5 Experiment Spot-5 will deorbit from April to August 2015: • CNES and ESA have decided to repeat the Take 5 R&D activity of Spot 4 with the Spot 5 satellite to put it in a 5 -days repeat mode, similar to Sentinel-2 A/B; • the experiment covers larger part of the vegetation period a. Input to R&D in the Northern hemisphere; priority topics inter • have an improvedoperability, data quality, forest with a variety of modes wrt degradation and Spot 4/Take 5 (10 m, likely 5 m TBC); • assuming a 5 -day biomass revisit overestimation 5 months, thus resulting ~ 30 images per site; • dedicated GFOI input during 2 nd R&D Expert workshop on forest degradation and open call by ESA resulting in at least 30 forest related sites world-wide.

Spot 5/Take 5 over the Amazon Colombia: • Sierra Nevada • Caqueta • La Victoria Peru: • Madre de Dios Guyana Brazil: • Novo Progresso • Santarem • Tapajos • Rio Preto • Paranoa

Spot 5/Take 5 over Africa Cameroon Gabon Congo CAR DRC Angola Uganda Tanzania Kenya Malawi

Spot 5/Take 5 over SE Asia Vietnam (2) Cambodia Laos Indonesia (4) • Central Kalimantan • Harapan / Sumatra • Jambi

Spot 5/Take 5 over Australia: • Robson Creek (TERN) • Warra / Tasmania (TERN) • Litchfield • Lakes

Sentinel-2 will fulfill key requirements forest monitoring and will be a major workhorse for REDD+ with: • high repetition rates to acquire large data coverage in short time periods, which will lead to improved consistency, accuracy, timeliness and thematic detail of forest maps for e. g NFI, GHG, illegal logging • high spatial resolution to assess also forest stands with low canopy closure and map small disturbances of forests and forest degradation (MMU < 1 ha) • high spectral resolution with dedicated bands (red–edge) to discriminate between forest and spectrally similar vegetation types http: //sentinel. esa. int

ESA EO Thematic Exploitation Platforms Facilitate effective and economically sustainable use of computing infrastructures and ground segment capabilities by European scientific communities and industry: • Thematic – addressing thematic domains with many possible applications: Coastal, Forestry, Hydrology, Polar, Urban, Geohazard • Scientific – aiming at the scientific exploitation of EO data • Exploitation platform – implementing use cases for a online work environment: access to data, testing of algorithms, new product and service development, data exploitation and demonstration, etc. KO: March 2015 Budget: € 1, 000 Committed users: Duration: 3 3 years

TEP Objectives • Provide easy to use environment for R&D and service provision; • Easy access to Earth observation data; • Easy access to processing tools e. g. Sentinel Toolboxes, Open. Foris; • • • Intuitive and streamlined (pre-) processing to higher level; Reduce burden of IT infrastructure; Reduce data dimensionality for download; Protect IPR; Increase ownership of process;

Basic Requirements • Target on Europe and developing countries in the tropics • Pre-processing of EO data o Optical: atmospheric and radiometric correction and ortho-rectification, cloud and cloud shadow masking, multi-temporal mosaicks o SAR: geo-coding, radiometric correction, mosaicking Complementary • R&D environment to develop and test new algorithms o o to Space Data define, test, validate and compare the different approaches and algorithms provide cooperative. Management functions for users System to publish, share and discuss their results ESA and UNFCCC • Large scale service demonstration for climate change mitigation (REDD+) in developing countries o provide a coordinated and low threshold access to multi-mission core Earth Observation data o Production of forest / non forest map and change detection

Summary • The European Copernicus Programme will secure data availability for the next 20+ years: o Sentinel-1 A successfully launched on 3 April 2014 o Sentinel-2 A launch estimate: Mid June 2015 • Data policy: free and open access • Sentinel-1 A data are available publicly since 3 October on a rolling archive at https: //scihub. esa. int • Spot 5/Take 5 experiment with 5 days repeat from April – August 2015 de-orbiting Spot 5 • ESA’s Forestry TEP will serve R&D community and REDD+ services in countries.