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Paul Ingmann and Pedro Baptista Earth Sciences Division ESA/ESTEC Noordwijk/NL

European Contribution to the Global Precipitation Mission (EGPM) A new ESA Earth Explorer Opportunity Mission. Paul Ingmann and Pedro Baptista Earth Sciences Division ESA/ESTEC Noordwijk/NL. The Elements of ESA’s EO Programme. Individual Optional Missions

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Paul Ingmann and Pedro Baptista Earth Sciences Division ESA/ESTEC Noordwijk/NL

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  1. European Contribution to the Global Precipitation Mission (EGPM) A new ESA Earth Explorer Opportunity Mission Paul Ingmann and Pedro Baptista Earth Sciences Division ESA/ESTEC Noordwijk/NL

  2. The Elements of ESA’s EO Programme • Individual Optional Missions • METEOSAT and METEOSAT Second Generation (MSG) - with EUMETSAT • ERS-2 • ENVISAT • METOP - with EUMETSAT • Covered by the Earth Observation Envelope Programme • Earth Explorer and Earth Watch Missions

  3. The Earth Explorer Missions Earth Observation Future Missions operational, service oriented, or monitoring missions Earth Watch Earth Explorer research oriented, also demonstration of new observation techniques Core Missions OpportunityMissions larger missions, ESA led < 400 MEURO smaller, faster missions, not necessarily ESA led < 110 MEURO

  4. Current Situation of the Earth Explorer Missions GOCE Phases C/D/E1 started Launch 2006 Core-1 CRYOSAT Phases C/D/E1 started Launch 2004 Opportunity-1 ADM/Aeolus Lidar pre-development on-going Phase B started in July 2002 Launch 2007 Core-2 SMOS Extended Phase A ongoing Launch 2005 Opportunity-2 • Homepage: http://www.esa.int/livingplanet

  5. The Earth Explorer Core Missions: 2nd Cycle • Three Earth Explorer Core Mission Concepts selected for Phase A study: • EarthCARE – Earth clouds aerosol and radiation explorer • SPECTRA – surface processes and ecosystems changes through response analysis • WALES - water vapour lidar experiment in space

  6. The Earth Explorer Core Missions EarthCARE Science Objectives EarthCARE has been specifically defined with the scientific objectives of determining for the first time, in a radiatively consistent manner, the global distribution of vertical profiles of cloud and aerosol field characteristics toprovide basic essential input data for numerical modelling and global studies of: • divergence of radiative energy, • aerosol-cloud-radiation interaction, • vertical distribution of water and ice and their transport by clouds, • the vertical cloud field overlap and cloud-precipitation interactions. Core elements: cloud radar, backscatter lidarplus MSI, BBR, FTS

  7. The Earth Explorer Core Missions WALES Science Objectives To determine profiles of water vapour accuratelyand athigh vertical resolution from space withglobal coverage CORE ELEMENT: Nadir-viewing water vapour DIfferentialAbsorptionLidar(DIAL) System First active humidity profiler in space

  8. Background to EGPM EuroTRMM: Participants Data ‘Processors’: CETP/CNRS (F) Radar (PR) algorithms, airborne campaigns and validation IFA (I) Radiometer (TMI) algorithms DLR (D) Radiometer (TMI) algorithms U. Munich (D) Imager (VIRS) algorithms Univ. Essex (UK) Volume scattering, ground-based radar algorithms UCL (B) Sea-surface scattering RAL (UK) Ground-based radar validation data GPCC/DWD (D) Ground-based rain-gauge data Data Users: ECMWF Data assimilation MPI (D) Convection scheme (regional model) EuroTRMM co-funded by European Commission and European Space Agency.

  9. User Requirements ECMWF Scattering Models UCL & U. Essex Field Campaigns CETP &RAL Adaptation & validation of existing algorithms CETP, DLR, IFA & U. Munich Rain-gauge data GPCC & MPI Development & validation of synergetic algorithms CETP, DLR, IFA & U. Munich Data EuroTRMM: Work Structure

  10. Data Production & delivery of TRMM precipitation fields for validation CETP & IFA Development & validation of convection schemes (regional models) MPI Assimilation of TRMM precipitation data ECMWF Development & validation a new SSM/I algorithm for climatological applications DLR EuroTRMM: Work Structure (cont.)

  11. EuroTRMM: Conclusions Impact of the assimilation of TRMM rain rates on ECMWF forecasts for tropical wind at 850 hPa Same impact as the one obtained by doubling the resolution of the model ECMWF will start operational data assimilation in 2003

  12. EGPM and EuroTRMM • EuroTRMM has proven very useful for the exploitation of TRMM data • EuroTRMM has been an essential building block in preparation of EGPM • Members of EuroTRMM team proposed EGPM to ESA • Key members of EuroTRMM are also members of the EGPM-MAG • Ensures continuity

  13. The Earth Explorer Opportunity Missions Earth Explorer Opportunity Missions: 2nd Cycle • 25 Earth Explorer Opportunity Mission Concepts submitted (by early 2002) • Addressing all Earth science disciplines including atmospheric chemistry, physics, land, ocean/ice. Evaluation on-going – final scientific recommendation by the ESAC. • 3 missions recommended for Phase A study: • ACE+ - radio occultation constellation mission • EGPM – European contribution to GPM • SWARM – magnetosphere mission

  14. The Earth Explorer Opportunity Missions EEOM - Assessment of EGPM EGPM • Availability of fresh water is so dominant for human development. • Mission is a major European contribution to the Global Precipitation Mission (GPM). • EGPM features additional deliverables that are needed at high latitudes (such as Europe and Canada); achieved by extending the microwave radiometer measurements to higher frequencies ensuring the capability to measure snowfall. • As an option, a 36 GHz radar to improve the accuracy of the precipitation retrieved from the microwave radiometer is considered.

  15. The Earth Explorer Opportunity Missions The EGPM-MAG - Members EGPM • EOEP – user driven programme • Missions supported by mission advisory groups (MAGs)

  16. The Earth Explorer Opportunity Missions EGPM Overall Planning EGPM

  17. The Earth Explorer Opportunity Missions EGPM Primary International Partners SSMIS (2) TDRSS Constellation International Partner Operations Center White Sands SSMIS Operations Archive Validation Data Global Precipitation Data Processing Center U.S. Mission Operations Center Near Real-Time Rainfall 3-hr Rain Map IR Data Climate Data AMSU Europe GP Data Broadcast Network Virtual Ground Station Global Precipitation Network The EGPM MissionPartnership Opportunity EGPM • Space Segments • Ground Segments • Research • Dissemination

  18. The Earth Explorer Opportunity Missions The EGPM Mission– Observational Requirements EGPM (*) requires GPM constellation

  19. Three different classes of users can be identified: Near-real-time users (‘nowcasting’) Operational meteorology users Research oriented users The first group requires delivery within 15 minutes for issuing e.g. warnings (raw data dumps, Level 0) The second group for operational applications require the Level 1b data product in near real-time (<4 hrs after the observation) throughout the mission For research applications, any processing level may be required, from level 0 data to Level 2 – strong link to other GPM partners. The Earth Explorer Opportunity Missions The EGPM Mission - Data Users EGPM Level 0 and Level 1b data products should be archived for 10 years (or more) to allow re-analysis. Data should be available to the international scientific user community on request.

  20. Sun-synchronous orbit Equator crossing time 14:30 LST (TBC) Global coverage (tropical to polar while focus on mid-latitudes) Altitude 635 km (passive only) or 510 km (passive and active) (TBC) Coverage to be optimised for Europe (in space and time) Instrument foot prints and allowed horizontal integration length are assumed to satisfy the mission requirements (coverage, spatial and temporal resolution) Only a posteriori geo-location, horizontal location error better than 2 km (TBC) 3 years mission duration; satellite designed for a lifetime of 5 yrs Launch date 2008-2012 The Earth Explorer Opportunity Missions EGPM System – Observation Requirements EGPM

  21. The Earth Explorer Opportunity Missions EGPM – Payload RequirementsRadiometer – Baseline Channels EGPM

  22. Overall ESA Earth Observation Launch Schedule Sep-02

  23. Conclusions • Major contribution to ‘precipitation’ from EGPM, one of the forthcoming Earth Explorer missions • Other missions in preparation by ESA in the context of the Earth Explorers providing relevant observations also getting implemented: • The Atmospheric Dynamics Mission (for transports) - Core mission • CRYOSAT (polar ice thickness) - Opportunity mission • SMOS (soil moisture and ocean salinity) - Opportunity mission Plus two of the three candidate Earth Explorer Core missions, EarthCARE and WALES. (ESA Earth Observation WEB Portal - http://www.esa.int/livingplanet)

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