GSCB workshop, ESRIN, June ESA EO missions

Transcription

1 GSCB workshop, ESRIN, June 2012 ESA EO missions

2 PLANET

3 ESA EO OPERATIONS CONCEPT Functionalities Mission Management and User Consultation Satellite Control Payload Operations and Programming Plan Data Acquisition Receive Satellite Data Process and Archive Satellite Data Products Quality Assurance Disseminate Data Products User Interface and Support Services The mission operations are based on a multifunctional ground segment: a unified structure, developed to meet the user requirements of ESA and Third Party missions, both individually and collectively by: Integrating national capabilities and facilities into a common European decentralized framework Providing benefits to Member States through access to ESA technology and systems Responding to increasing data volumes and evolving user requirements for more sophisticated products Ensuring the highest quality of Earth Observation data products Facilitating data access to stimulate applications development, science and downstream industry

4 Data continuity ERS-1 ERS-2 Envisat Data gap Sentinel-1 Envisat: a major source of information for Earth sciences and for environmental monitoring Sentinel-3 Sentinel-5P The relatively easy access to Envisat data, its data policy, its data quality, all contributed to expand considerably the usage and visibility of the Envisat mission and EO data in general. Despite the fact that Envisat has more than twice exceeded its specified lifetime, the sudden interruption of Envisat data services creates concerns in the EO user communities and various industries in Europe and outside Europe.

5 Envisat data-gap filling initiatives Envisat à [ ] à Sentinels The lack of overlap between Envisat and Sentinel satellites operations creates a data gap. ESA is trying to reduce the impact of the data gap with two types of initiatives: 1- Increased presence of non-esa data à several satellite operators have offered their collaboration (e.g. operators of SAR missions in Europe/Canada); discussions have started. à data gap actions will very partially compensate for the lack of Envisat data, i.e. only the Sentinel missions will fully substitute the Envisat data flow. Envisat instruments Atmospheric composition (GOMOS, MIPAS, SCIAMACHY) Altimetry (RA-2, MWR, DORIS) Ocean and Land Colour (MERIS) Ocean and Land Temp. (AATSR) Imaging Radar (ASAR) Potential Third Party Missions which could contribute to the partial mitigation of Envisat data-gap ODIN Osiris, SCISAT-1, GOSAT, GOME-2/IASI on MetOp-A/-B, sensors on Aura (inc. OMI), 3 sensors on NPP, OCO-2 Jason-1/-2, CryoSat (Oceanographic products), HY-2A, SARAL Altika MODIS Terra & Aqua, VIIRS on NPP, Vegetation on Spot, Proba- V, India OCM on OceanSat-2 MODIS Terra & Aqua, VIIRS on NPP, AVHRR, Japan GCOM-W1 [C-band] Radarsat-1/-2 [X-band] Cosmo-Skymed constellation, TerraSAR-X/Tandem-X 2- Reinforcement of archived data exploitation (Envisat / ERS) à increased availability of datasets on-line, e.g. SAR data for Geohazard Supersites (InSAR datasets), SAR data over polar areas Above actions are however strongly depending on the level of budget resources (EOEP-4, Earthnet, LTDP) to be decided by ESA Member States during the ESA Ministerial Council in November 2012.

6 ERS missions ERS-1 ( ) and ERS-2 ( ) 20 years of data provision ( ) Objectives: multi-instrument environmental Paved the way for European EO (à Envisat, MetOp): ESA decentralized ground segment with 4 Processing and Archiving Facilities 5 acquisition stations in Europe and 28 globally 7 instruments and several 10th of product types Users: Several 1000 scientists Data volume: ~1.3 PByte

7 ENVISAT Envisat ( ) Status 10 years of operations; satellite failure on 8 April 2012 Objectives multi-instrument environmental Instruments 10 instruments Users ~4000 scientific projects, many operational services (GMES, meteo, oil spill, emergency, ) Facilities 10 facilities distributed in Europe Data volume ~1 PByte

8 EARTH EXPLORERS GOCE ( ) Status Operational since Nov Objectives Earth gravity field Instruments Users Facilities Data volume Electrostatic gravity gradiometer, satellite-to-satellite tracking instrument, laser retro-reflector Hundreds of scientists Stations in Kiruna, Svalbard; Archives & Processing at ESRIN (L1b) and distributed over Europe (L2) ~1 TB of products by end of mission SMOS ( ) Status Operational since May 2010 Objectives Soil moisture and Ocean Salinity Instruments Passive microwave (L-band) Users Hundreds of scientists (hydrologists, oceanographers, meteorologists etc) Facilities Stations in ESAC Villafranca and Svalbard, Facilities in Kiruna, Satellite ops in CNES Toulouse Data volume ~10 GB per day

9 EARTH EXPLORERS Cryosat-2 ( ) Status Operational since October 2010 Objectives Thickness of sea and land ice Instruments SIRAL radar altimeter, DORIS Users > 300; ~200 institutions worldwide Facilities Kiruna, CNES, ESRIN Data volume ~50 GB per day Swarm Status Launch foreseen at end-2012 Objectives Earth magnetic field and near-earth environment Instruments Vector field magnetometer, advanced scalar magnetometer, electric field instrument, accelerometer, GPS receiver Users Magnetic field community, aeronomy, ionosphere and magnetosphere Facilities Kiruna, Farnborough, Level 2 processing by science consortium as part of PDGS Data volume Modest

10 EARTH EXPLORERS ADM - Aeolus Status Launch 2014, but likely delayed Objectives Wind Profiles Instruments Lidar Users Met. Offices and scientists, Facilities Stations in Svalbard and Tromsø, Facilities at DLR and ECMWF Data volume 5 TB over the entire mission EarthCARE Status Launch 2015, but likely delayed Objectives quantifying aerosol-cloud-radiation interactions so as to allow their inclusion in climate and numerical weather forecasting models Instruments Backscatter Lidar (ATLID, Cloud Profiling Radar (CPR) provided by JAXA, Multi- Spectral Imager (MSI), Broad-Band Radiometer (BBR) Users Meteorology - Climatology Facilities FOS ESA PDGS JAXA PDGS Data volume Level 1: 100 GB/day

11 ESA EO MISSIONS IN OPERATIONS ERS ERS Missions operations funded by ESA EOEP-3 Envisat GOCE 2012 Missions operations funded by ESA EOEP-4 (to be decided by ESA C-MIN in November 2012) Data access/preservation funded by ESA LTDP SMOS CryoSat Foreseen extension Foreseen extension SWARM Note: data management (e.g. access, reprocessing) shall be ensured beyond mission active lifetime ADM-Aeolus EarthCARE Missions operations funded by European Commission Sentinel-1A, -1B Sentinel-2A, -2B Sentinel-3A, -3B Sentinel-5P

12 ESA s Third Party Missions Planned/TPMs under preparation THEOS Quickbird Terrasar-X Rapideye Cosmo Deimos-1 Pléiades Jason Partnerships with 21 European and non-european Space Agencies/Mission owners Annual review of TPM status Operational with PB-EO approval and ESAC review Third Party Missions ODIN Scisat SPOT-4 SPOT-5 IRS-P6 GOSAT Accessible under LR Atmospheric Ø ONE Terms and Conditions document HR Optical Landsat DMC Proba Qscat ESA EO missions Nimbus Landsat RBV/MSS JERS-1 Irs-P3 IRS-P3 Historical archives MR optical Aura/Omi Saocom 2012 Kompsat-1 Kompsat-2 Ikonos F-2 ALOS R-2 ~30 historical and operational TPMs with data from ~45 instruments VHR optical HR/VHR SAR ~11 TPMs under integration/planning with data from ~14 instruments Ø TWO application mechanisms (registration, full proposal) Ø ONE Web domain for all technical information through ground segment harmonisation for complementary data exploitation with CBE

13 The 3 largest THIRD PARTY MISSIONs: PROBA-1, ALOS, Landsat PROBA-1 ALOS (JAXA) Extension Landsat(s) (USGS) LDCM PROBA-1 (ESA) Hyperspectral 10 years old! Developed as Technology Demonstrator, since 2004 under responsibility/budget of Earth Observation CHRIS: Compact High Resolution Imaging Spectrometer is a hyperspectral instrument, collects BRDF (Bidirectional Reflectance Distribution Function) data in 5 angles 430 projects use PROBA-1 Data Nominal view angles: +/- 55, +/- 36, 0 ALOS (JAXA) L-band, 2 x optical JAXA Satellite ESA is responsible for Europe and Africa Many applications: SAR Polarimetry and Interferometry, land cover/land use, oceanography, sea ice, ice and glaciers, 420 projects use ALOS data (mainly L-band SAR) Mode No. of bands GSD (m) Swath Width Application s Full Aerosols Full Water Full Land Full Chlorophyll Half Land Landsat (USGS) 40 years of optical Data

14 ESA MISSIONS OPERATIONS CONCEPT Functionalities Mission Management and User Consultation Satellite Control Payload Operations and Programming Plan Data Acquisition Receive Satellite Data Process and Archive Satellite Data Products Quality Assurance Disseminate Data Products User Interface and Support Services The mission operations are based on a multifunctional ground segment: a unified structure, developed to meet the user requirements of ESA and Third Party missions, both individually and collectively by: Integrating national capabilities and facilities into a common European decentralized framework Providing benefits to Member States through access to ESA technology and systems Responding to increasing data volumes and evolving user requirements for more sophisticated products Ensuring the highest quality of Earth Observation data products Facilitating data access to stimulate applications development, science and downstream industry

15 ESA MISSION OPERATIONS CONCEPT INDUSTRIAL POLICY AND BENEFICIARIES Benefits to ESA member states Procurement through ITTs with large number of SMEs, industrially complements the contracts with satellite Primes Develops industrial capabilities in ESA member states Supports development of industrial skills also in smaller, sometimes under-returned countries Enables member states to establish a long term architecture for own missions/facilities and to cooperate in future ESA programmes, thanks to the cooperation and joint interface standardisation efforts.

16 FEEDBACK MECHANISM WITH THE USER COMMUNITY WITHIN MISSION OPERATIONS WORKSHOP RECOMMENDATIONS REPORTING ACTIONS Modification of Mission space / ground segment Mission extension Upgrade Algo & Toolbox Training

17 ACCESS TO ESA MISSIONS DATA A constant ESA objective: - ease access to Earth Observation data 1. Revised ESA EO data policy (2010) 2. Constant upgrade of ground segment for easier access to data through Internet for Near Real Time (NRT) data and for archived data 3. Development of alternative ways to provide data (e.g. processing on demand, data/algorithm toolboxes) 4. Large effort in maintaining data quality (processing algorithms and subsequent reprocessing) 5. Need to preserve old data for future use (LTDP)

18 ESA EO DATA POLICY FREE and OPEN DATASET: à For data collections available on-line i.e. most of ESA EO data - open and free of charge - user registration done electronically à If datasets not (yet) available on-line, i.e. mainly ESA SAR data: - user project proposals received by ESA; data provided free of charge but with data quota limit due to processing capacities constraints Third Party Missions à Data Policy of individual data providers

19 TIMELY DATA AVAILABILITY AFTER LAUNCH (Earth Explorers) Launch Data provided to cal/val users Data released to user community GOCE March 2009 Data available to cal/val team ~ 2 weeks after launch Validated Level 1b data available to all users since May 2010 and validated Level 2 data available to all users since June 2010 = 14 and 15 months after launch SMOS Data available to ESLs ~ 1.5 months after launch Nov 2009 First Level 1C products (and some data sets for level 2) officially released to cal/val PIs mid April = 6 months after launch Official release of level 1C products in July 2010 and Level 2 products in Oct 2010 = 9 and 11 months after launch CryoSat April 2010 Data available to cal/val teams from July 2010 = 3 months after launch All CryoSat L1b & L2 data available on-line since Feb 2011 = 11 months after launch

20 ACCESS TO EO DATA DATA AVAILABILITY ON LINE Ensuring seamless EO data flow from satellites to users DDS Multi-mission data catalogue and download Access to archived products Access to NRT and recent products Availability of EO (jpg) images to the public & media Specialized data access and science interface (partnership): Geohazard Supersites

21 INFORMATION on EO DATA ESA portals Portals in support to other organisations Earthnet On Line (EO Data and Services Information Portal) - for EO user communities GEO Portal Charter Space & Major Disasters ESA Portal - for media and general public CEOS Cal/Val Portal

22 Alternative ways to access to the data ü One example: à Grid Processing-on-Demand (G-POD) Promote the development of new algorithms requiring large data and computing resources: bring the user s algorithms to the data Build network of competences, promote e-collaboration and sharing of tools, easier transition from science algorithms to new user products on-line data archives user triggers and controls from the G-POD website its own processor running on grid computers ü Other examples: on-going pilot projects around exploitation platforms based on cloud computing user results

23 HOW TO ENSURE HIGH DATA QUALITY? MANAGEMENT OF DATA QUALITY IN OPERATIONS PHASE Expert Support Laboratories Maintain processing baselines Processing algorithm upgrades Instrument characterization / calibration Validation coordination/analysis Routine Quality Control Regular product check Completeness, trend, anomaly Configuration of operational processors Cal/Val teams Develop and operate Cal/Val infrastructure Long term and campaign Cal/Val activities and analysis Instrument or Mission Quality Working Group Regular meetings for discussion on data quality issues or quality improvements Public availability of reports (monthly reports, validation reports) Regular reports on data quality to PB-EO (or to other funding bodies) Complementary Cal/Val activities Cal/Val Interest working group (CVI) with other mission operators

24 Ground segment challenges for ESA missions Innovation Timeliness Continuity Coordination with other operators Synergy with other missions Uniqueness Data quality Data volume