Presentation on theme: "Frank Martin Seifert EO Science and Applications Division ESA Earth Observation Programme SDCG-7 | 5 March 2015 | Sydney Sentinel-1 and -2 Core Data."— Presentation transcript:
Frank Martin Seifert EO Science and Applications Division ESA Earth Observation Programme SDCG-7 | 5 March 2015 | Sydney Sentinel-1 and -2 Core Data
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 and 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 Joint COM/ESA Sentinel Data Policy Principles have been prepared in 2009 - adopted by ESA MSs in Sep 2009 EU Delegated Act on Copernicus Data and Information Policy has been adopted in 2013 (C(2013)4311, final) ESA got approval of updated Sentinel Data Policy from its Member States in Sep 2013. Main principles of Sentinel data policy: Open access to Sentinel data by anybody and for any use Free of charge data licenses Restrictions possible due to technical limitations or security constraints Sentinel Data Policy = FREE and OPEN access Copernicus Sentinel Data Policy
Sentinel Data Access Sentinel-1A Data Flow Open to all users since 3 rd October at: sentinel.esa.int
Sentinel-1A 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 data available!
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 Colombia: 521 VV 21 VV/VH
Sentinel-1 - in the full operational configuration of two satellites - will be a workhorse for 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-1A data are available since 3 October 2014 on a rolling archive at https://scihub.esa.inthttps://scihub.esa.int The Routine Operations Readiness Review (RORR) is planned for April/May 2015. http://sentinel.esa.int Sentinel-1
Sentinel- 2 Mission FeatureDescription Spacecrafts2 operating in twin configuration InstrumentMSI (Multi-Spectral Instrument) operating in pushbroom principle (filter based optical system) Spectral bands13 (VIS–NIR–SWIR) Spatial Resolution 10m / 20m / 60m Swath290 km OrbitSun-synchronous at 786 km (14+3/10 revs per day), with LTDN 10:30 AM Revisit Periodicity 10-day with 1 satellite 5 day with 2 satellites Lifetime7.25 years, extendable to 12 years LaunchPlanned 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 Take5 R&D activity of Spot 4 with the Spot 5 satellite to put it in a 5-days repeat mode, similar to Sentinel-2A/B; the experiment covers a larger part of the vegetation period in the Northern hemisphere; have an improved data quality, with a variety of modes wrt Spot4/Take5 (10m, likely 5m TBC); assuming a 5-day revisit over 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.
Spot5/Take5 over the Amazon Colombia: Sierra Nevada Caqueta La Victoria Peru: Madre de Dios Guyana Brazil: Novo Progresso Santarem Tapajos Rio Preto Paranoa
Spot5/Take5 over Africa Cameroon Gabon Congo CAR DRC Angola Uganda Tanzania Kenya Malawi
Spot5/Take5 over SE Asia Vietnam (2) Cambodia Laos Indonesia (4) Central Kalimantan Harapan / Sumatra Jambi
Spot5/Take5 over Australia Australia: Robson Creek (TERN) Warra / Tasmania (TERN) Litchfield Lakes
Sentinel-2 will fulfill key requirements for 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 Sentinel-2 http://sentinel.esa.int
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. ESA EO Thematic Exploitation Platforms KO: March 2015 Budget: €1,000,000 Committed users: 3 Duration: 3 years
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, OpenForis; Intuitive and streamlined (pre-) processing to higher level; Reduce burden of IT infrastructure; Reduce data dimensionality for download; Protect IPR; Increase ownership of process; TEP Objectives
ESA and UNFCCC 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 R&D environment to develop and test new algorithms o define, test, validate and compare the different approaches and algorithms o provide cooperative functions for users to publish, share and discuss their results 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-1A successfully launched on 3 April 2014 o Sentinel-2A launch estimate: Mid June 2015 Data policy: free and open access Sentinel-1A data are available publicly since 3 October on a rolling archive at https://scihub.esa.inthttps://scihub.esa.int Spot5/Take5 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.