ERS ENVISAT ERS and ENVISAT 1 The Missions

ERS & ENVISAT ERS and ENVISAT 1 - The Missions: Status and Achievements 3 - Opportunities 4 - Information and Contacts Directorate of Application Programmes October 2000

ERS & ENVISAT Contribution to ESA per inhabitant and year (EURO) 20 -25% for Earth Observation: ERS ENVISAT Earth Explorers Earth. Watch DUP Earthnet Directorate of Application Programmes October 2000

ERS & ENVISAT ESA EO Mission Evolution 1991 ERS 1 1995 Oceans Sea Ice Cryosphere Land Surface Climatology ERS 2 + Global Ozone Directorate of Application Programmes + Ocean Colour + Atmospheric Constituents 2001 ENVISAT October 2000

ERS & ENVISAT ERS: A European success From an engineering success to the development of sophisticated applications Directorate of Application Programmes October 2000

ERS & ENVISAT 1991: The evidence of an engineering achievement Successful commissioning phase All instruments are working nominally, sometimes exceeding the specifications • First low bit rate data: all nominal • First ATSR images: Kuwait on fire • First SAR images: excellent quality Directorate of Application Programmes October 2000

ERS & ENVISAT 1992: The start of a scientific success First ERS Symposium: Cannes – Big interest (180 papers, 450 participants) – Confirmation of the quality of the data provided by the instruments q Watching the land q Watching the ice q Watching the seas Scatterometer - Wind speed (July 1992) Directorate of Application Programmes October 2000

ERS & ENVISAT 1993: The beginning for an increasing number of applications Oil slick: La Coruna (E) (December 92 - January 93) Flooding: Mississipi river during Summer 1993 A major EO milestone: ERS-1 & SAR Interferometry • ERS-1 differential interferometry reaches the cm precision ( «Bonn experiment» ) • Demonstration with Landers earthquake Second ERS Symposium: Hamburg 315 papers, 600 participants Directorate of Application Programmes October 2000

ERS & ENVISAT 1994: Monitoring the Earth The geodetic mission An unprecedented view of the Earth seafloor First Pilot Projects Workshop: Toledo paved the way for applications Directorate of Application Programmes October 2000

ERS & ENVISAT 1995: The breakthrough of the tandem mission ERS tandem mission (July 1995 - July 1996) DEM with 10 m vertical precision are achievable Second Pilot Projects Workshop: London progressing applications results Directorate of Application Programmes Bachu (China) October 2000

ERS & ENVISAT 1996: Exploiting the potential of the tandem mission The tandem coherence provides an additional information level for land use studies. ERS tandem A strong complementarity with optical data is recognised. Iceland: Vatnajokull eruption SPOT Fringe Workshop: Zurich the first workshop dedicated to interferometry Directorate of Application Programmes October 2000

ERS & ENVISAT 1997: Contributing to the observation of El Nino Temperature anomaly derived from ERS-2 and ERS-1 ATSR data SAR tandem data used to monitor forest fires in Indonesia October 1997 Third ERS Symposium: Florence 420 papers, 700 participants Directorate of Application Programmes October 2000

ERS & ENVISAT 1999: Exploiting 8 years of ERS-1 archived data Estimated Velocity Field [mm/yr] New sophisticated technique: permanent point scatterers Pomona (California) • allows to monitor submillimetric mouvement of buildings • used for building collapse in Rome and Foggia (Italy) Second Fringe Workshop: Liege Confirmation of the high value of the ERS-1 SAR data archive Directorate of Application Programmes October 2000

ERS & ENVISAT 2000: ERS Assessing the French storm trees damages IGN map (Haguenau forest) SPOT XS image (from archives) The combination of SAR tandem data provides a quick estimate of the amount of tree damages, after the Christmas French storms. ERS tandem coherence before the storm ERS tandem coherence after the storm Damages estimate (coherence gradient in pink tones) Based on Spot Image coherence products SERTIT Directorate of Application Programmes October 2000

ERS & ENVISAT ERS Status Summary ERS-1 ERS-2 ended its mission in March 2000 fully operational, funded until end of 2002 new data policy implemented Directorate of Application Programmes October 2000

ERS & ENVISAT SATELLITE CONFIGURATION Dimensions: - Launch configuration: length 10. 5 m envelope diameter 4. 57 m In-Orbit Configuration: 26 m x 10 m x 5 m Mass: Total satellite 8140 Kg (including 319 Kg hydrazine) - Payload 2050 Kg Solar Array power: 6. 5 k. W (EOL) Average Power demand: Payload Satellite Launch vehicle: Directorate of Application Programmes Sun Eclipse (watts) 1700 1750 3275 2870 Ariane 5 (single launch) October 2000

ERS & ENVISAT Envisat : Payload Composition ESA Developed Instruments (EDI’s) MERIS MIPAS ASAR GOMOS RA 2 MWR LRR Medium Resolution Imaging Spectrometer Michelson Interferometric Passive Atmospheric Sounder Advanced Synthetic Aperture Radar Global Ozone Monitoring by Occultation of Stars Radar Altimeter 2 Microwave Radiometer Laser Retro Reflector Announcement of Opportunity Instruments (AOI’s) SCIAMACHY AATSR DORIS Scanning Imaging Absorption spectrometer for Atmospheric Cartography Advanced Along Track Scanning Radiometer Doppler Orbitography and Radio-positioning Integrated by Satellite Directorate of Application Programmes October 2000

ERS & ENVISAT C-Band Advanced Synthetic Aperture Radar H/V polarisation capability active antenna array Directorate of Application Programmes ASAR operating modes October 2000

ERS & ENVISAT Milestones Platform & Payload integrated in ESTEC Satellite Verification Test ongoing (SVT-2 completed) Ground Segment Readiness Review Flight Acceptance Review Launch (Ariane 5) Commissioning Phase /Cal-Val Planned Operationsand Services Directorate of Application Programmes End March 2001 Early April 2001 Jun/Jul 2001 ( 6 months) 4 -5 years October 2000

ERS & ENVISAT The Opportunities Exploitation Projects, Access to data, Contracts Demonstration of B Capabilities Directorate of Application Programmes October 2000

ERS & ENVISAT Belgium AO Projects - 11 AO 3 Projects, - 20 AO-ENV Projects, - 15 institutes/companies) Category 1 Project Proposals Access to all projects’ results (some 1500 over all) Directorate of Application Programmes October 2000

ERS & ENVISAT Demonstration of B Capabilities Second International Workshop on ERS SAR Interferometry FRINGE '99 'Advancing ERS SAR Interferometry from Applications towards Operations' 150 Participants (Science, Applications, VACs) 10 – 12 November 1999 Palais des Congrès, Liège, Belgium http: //www. esa. int/fringe 99/ 90 Presentations Directorate of Application Programmes October 2000

ERS & ENVISAT PDS Contracts • ABSD (Alcatel Bell Space and Defense) and • CIT Engineering NV PDS Acqusition Facility: developement, project mgt, and integration Envisat X and Ka-band demodulators RHEA: ESRIN On-site support Directorate of Application Programmes October 2000

ERS & ENVISAT Contact Points Mission and Techn. Information, Documentation: EO Help Desk: tel: +39 06 94. 180. 777 fax: +39 06 94. 180. 272 Email: eohelp@esrin. esa. it ESA Earth Observation Home Page: http: //earth. esa. int/ Directorate of Application Programmes October 2000

ERS & ENVISAT ESA EO Explotation Project Home Page: http: //projects. esa-ao. org/ ENVISAT Home Page: http: //envisat. estec. esa. nl/ Open Tenders: EMITS: ESRIN Contract Office tel. no: +39 06 94. 180. 381 fax no: +39 06 94. 180. 382 http: //emits. esa. int/ Directorate of Application Programmes October 2000