Envisat and MERIS Status

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Envisat and MERIS Status MERIS US Workshop 14 July 2008 MERIS US Workshop, Silver Spring, July 14th, 2008 MERIS US Workshop Agenda a.m. ENVISAT/MERIS mission status, access to MERIS data 08:10-08:55 H. Laur (ESA) and distribution policy 08:55-09:10 Discussion Examples of the use of MERIS data in marine & land 09:10-09:40 P. Regner (ESA) applications 09:40-10:00 B. Arnone (NRL) Examples of MERIS data use for U.S. applications 10:00-10:20 S. Delwart (ESA) MERIS instrument overview 10:20-10:40 S. Delwart Instrument characterization overview 10:40-10:55 Discussion 10:55-11:10 Coffee break 11:10-11:30 S. Delwart Instrument calibration methods and results 11:30-11:50 Discussion 11:50-13:20 Lunch break MERIS US Workshop, Silver Spring, July 14th, 2008 MERIS US Workshop Agenda p.m. 13:20-13:50 L. Bourg (ACRI) Level 1 processing 13:50-14:10 Discussion 14:10-14:30 S. Delwart Vicarious calibration methods and results 14:30-14:50 Discussion 14:50-15:10 L. Bourg Overview Level 2 products 15:10-15:25 Coffee break 15:25-16:25 L. Bourg Level 2 processing 16:25-17:10 Discussion 17:10-17:25 P. Regner BEAM Toolbox 17:25-17:40 H. Laur Plans and status of the OLCI onboard GMES Sentinel-3 17:40-18:00 Discussion MERIS US Workshop, Silver Spring, July 14th, 2008 MERIS US Workshop, July 14th, 2008, Washington (USA) ENVISAT / MERIS mission status, access to MERIS data and distribution policy Henri LAUR Envisat Mission Manager & Head of EO Missions Management Office MERIS US Workshop, Silver Spring, July 14th, 2008 ESA: the European Space Agency The purpose of ESA: An inter-governmental organisation with a mission to provide and promote - for exclusively peaceful purposes - the exploitation of: EAC - Cologne, Germany • Space science, research & technology European Astronaut Centre • Space applications ESTEC - Noordwijk, the Netherlands Satellite development centre ESRIN - Frascati, Italy HEADQUARTERS - Paris, France Earth Observation centre Director General’s office and general administration ESOC - Darmstadt, Germany European Space Operations Centre ESAC - Villafranca, Spain European Space Astronomy Centre Staff in post : ~ 2000 MERIS US Workshop, Silver Spring, July 14th, 2008 EO missions handled by ESA 1990 2000 2010 METEOSAT Meteo METEOSAT Second Generation METEOSAT M-1, 2, 3, 4, 5, 6, 7 MSG-1, -2, -3 Third Generation in cooperation with EUMETSAT METOP-1, -2, -3 Cryosat (2) (Polar Ice Monitoring) Science (Gravity and Ocean GOCE Circulation Explorer) to better Earth SMOS (Soil moisture) understand the Earth Explorers ADM/Aeolus SWARM EarthCARE ERS-1, -2 ENVISAT Applications Sentinel satellites Services GMES & to initiate long National missions (e.g. SPOT, term monitoring Pleiades, TerraSAR, Cosmo-Skymed, ...) systems and services and Third-Party Missions: European access to non-ESA missions ALOS, SPOT-4, Landsat, Kompsat-2, SeaWIFS, MODIS ... MERIS US Workshop, Silver Spring, July 14th, 2008 Envisat MERIS 12 July 2008 Envisat mission and users MERIS US Workshop, Silver Spring, July 14th, 2008 ENVISAT Launch by ESA ARIANE 5 Injection on on March 1st, 2002 perfect orbit MERIS US Workshop, Silver Spring, July 14th, 2008 ENVISAT: the largest civilian EO satellite • Dimensions Launch configuration: length 10.5 m envelope diameter 4.6 m In-Orbit configuration: 26m x 10m x 5m • Mass Total satellite 8140 Kg Payload 2050 Kg • Power Solar array power: 6.5 kW (EOL) Average power demand: Sun Eclipse (watts) (watts) Payload 1700 1750 Satellite 3275 2870 • Orbit 800 km as ERS, sun synchronous 10:00, i.e. 30 minutes before ERS-2 MERIS US Workshop, Silver Spring, July 14th, 2008 ENVISAT: 10 ways to monitor the Earth Michelson Interferometric Passive Atmospheric Sounder Advanced Along Track Scanning Radiometer Scanning Imaging Absorption Spectrometer for Atmospheric Cartography Medium Resolution Microwave Radiometer Imaging Spectrometer to Data Relay Satellite Artemis Global Ozone Monitoring Doppler Orbitography and Radio-positioning by Occultation of Stars Integrated by Satellite to Ground Stations Radar Altimeter 2 Advanced Synthetic Aperture Radar • Launch 1st March 2002 • Orbit 800 km, sun synchronous 10:00 am, i.e. 30 minutes before ERS-2 MERIS US Workshop, Silver Spring, July 14th, 2008 MERIS instrument status Status: • Very stable and excellent performance since launch. MERIS • Full redundancy available. • Calibration diffuser degrading as expected. Current Risks and evolution: performances: Excellent • Very smooth ageing Expected evolution: • With the current ageing rate the required radiometric accuracy Excellent of the on-board diffusers can be maintained until 2013 MERIS US Workshop, Silver Spring, July 14th, 2008 Some Envisat results Yellowstone caldera accelerated uplift: up to 7 cm / year Science, 9 Nov. 2007: “ Accelerated Uplift and Magmatic Intrusion of the Yellowstone Caldera, 2004 to 2006”, Wu-Lung Chang, et al., Univ. of Utah (ESA Cat-1 project #2765) AS AR In terfero metry MERIS US Workshop, Silver Spring, July 14th, 2008 Some Envisat results September 200567 Arctic sea ice extent Canada Russia Arctic Sea: Fast decrease of sea ice extent nd la en re G Mosaic of ASAR images (10-days) MERIS US Workshop, Silver Spring, July 14th, 2008 Some Envisat results 15 years of radar altimetry ERS-1 / ERS-2 / Envisat 1992 - 2007 Mean sea level rise This is one of the Essential Climate Variables (ECV) MERIS US Workshop, Silver Spring, July 14th, 2008 Some Envisat results NO2 concentration increase by 50% Envisat over China (during last 8 years) ERS-2 A. Richter, J. Burrows, Nature, Sept. 2005 MERIS US Workshop, Silver Spring, July 14th, 2008 Synergy between ENVISAT imaging instruments AATSR MERIS ASAR Narrow Swath Modes ASAR Wide Swath Mode MERIS US Workshop, Silver Spring, July 14th, 2008 Synergy between ENVISAT imaging instruments Hurricane Katrina Wind field (derived Cloud Top from ASAR) Pressure (derived from MERIS) MERIS US Workshop, Silver Spring, July 14th, 2008 ENVISAT mission: Arctic 2007 6 years ! Bam earthquake Tectonic uplift (Andaman) First images ~2100 scientific Hurricane projects Katrina Global air + several GMES pollution pre-operational projects Ozone hole 2003 B-15A iceberg Chlorophyll Prestige tanker concentration oil slick CO2 map Envisat h Envisat c S Symposium RI Symposium n E R y M S tr ric u Salzburg (A) T e e e Montreux (CH) )A p im nc h a A ho lt e p on n ( s A er os ce L ti tio S R rk f n e R ra a p RI A o AR n tm ie nc A p ib w lid o E p S op W S op Co A c e nS ho al ie Va sh M ho In sh In h S er I s C v rk ks rk ks nf rk Re o or o or o o W W W W C W Mar 02 Sep 02 Dec 02 Nov 03 Dec 03 Sep 04 Sep 05 Dec 05 Mar 06 May 06 Apr 07 Dec 07 MERIS US Workshop, Silver Spring, July 14th, 2008 Next MERIS workshop: Sept. 08, Frascati Objectives: • Present latest results and status of research and development projects • Update MERIS/AATSR users on instrument performance and product quality • Formulate recommendations for improved data access and utilization, algorithms, user tools • Foster collaboration between MERIS and AATSR research groups • Inform users on the current status of the GMES Sentinel 3 mission • 105 oral presentations, 75 Posters Registration at: http://earth.esa.int/meris_aatsr_2008 MERIS US Workshop, Silver Spring, July 14th, 2008 Next MERIS workshop: Sept. 08, Frascati 22 – 26 September 2008 Skagerrak MERIS FR Chlorophyll June 6, 2008 100 km Denmark Baltic Sea North Sea Germany http://earth.esa.int/meris_aatsr_2008 MERIS US Workshop, Silver Spring, July 14th, 2008 Current MERIS users MERIS projects/users per country 358 Category 1 projects from the United States (all types of data) 65 US projects requesting MERIS data (i.e. 18 % of total) 33% asking Red. Res. data, 66% asking Full Res. data MERIS US Workshop, Silver Spring, July 14th, 2008 Envisat MERIS 11 July 2008 MERIS data acquisition MERIS US Workshop, Silver Spring, July 14th, 2008 MERIS data acquisition MERIS has 2 operation modes: Reduced Resolution (RR): 1040 m x 1200 m acquired systematically (43 minutes per orbit) Full Resolution (FR): 260 m x 300 m specific planning (currently ~18 min. per orbit) Swath width is 1150 km global coverage is reached every 3 days MERIS US Workshop, Silver Spring, July 14th, 2008 MERIS data acquisition MERIS Full ResolutioMnE dRatISa aFcuqlul iRsietisoonl:ution a gradual increase since beginning of mission 20 18 250 min/day 16 t 14 200 min/day i b r o / 12 s e t u 150 min/day n i 10 m e g 8 a r e v A 6 4 2 0 3 3 3 4 4 4 5 5 5 6 6 6 7 7 7 8 3 0 0 0 4 0 0 0 5 0 0 0 6 0 0 0 7 0 0 0 8 0 -0 - l- - -0 - l- - -0 - l- - -0 - l- - -0 - l- - -0 - n r t n r t n r t n r t n r t n r a p u c a p u c a p u c a p u c a p u c a p J A J O J A J O J A J O J A J O J A J O J A Recent increase thanks to new Canadian stations MERIS US Workshop, Silver Spring, July 14th, 2008 ENVISAT data acquisition ENVISAT Ka-Band (real time & recorders) ARTEMIS X-Band 75 % of MERIS FR (real time & 50 % of MERIS RR X-Band recorders) 50 % of AATSR Ka- Band KIRUNA ESA/ESRIN MATERA MERIS US Workshop, Silver Spring, July 14th, 2008 MERIS data acquisition Downlink in Real Time to Kiruna station Downlink to Canadian stations Recorded on board Downlink in Real Time for downlink via to ESRIN station via Artemis Artemis or Kiruna In yellow, data that are downlinked in Real Time to ESA Kiruna station.
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