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					        OVERVIEW OF THE MSG SYSTEM


                                            Y. Govaerts




                                                                               Slide: 1
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                                    OVERVIEW

                                   • Mission overview

                                   • Spacecraft

                                   • Ground segment

                                   • Data distribution




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GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                                      Programme

          Current and future Satellite Programmes

        MTP: Meteosat Transition Programme

        MSG: Meteosat Second Generation

        EPS: EUMETSAT Polar System

        OSTM: Ocean Surface Topography Mission

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GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                         EUMETSAT SATELLITE PROGRAMMES
                        96   97 98     99   00   01 02      03   04   05   06   07   08 09   10   11   12 1      14     1   1      17
                                                                                                          3             5   6
      METEOSAT                                                                                           NominaI operation
                       Over Indian Ocean since 7/98                                                      estimated lifetime

        • Meteosat-5                    IODC at 63°E                                                     Non nominal operation
                                                                                                          Estimated fuel margin
                       Hot stand by at 10°E (since 10/02)
        • Meteosat-6                                                                                       Approved

                                                                                                          Available for launch
        • Meteosat-7
                                 Operational S/C at 0°(since 6/98)                                            Planned

       MSG

        • MSG-1
       • MSG-2
       • MSG-3
       • MSG-4
      EPS
        • Metop-1
        • Metop-2
        • Metop-3
      JASON-2



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GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                         MSG Primary Mission Objectives
       • Multi-spectral imaging of the atmosphere and the Earth surface with improved
         radiometric (10bits), spectral (12 channels), spatial (3 km @SSP) and temporal
         (15 min) resolution as compared to the first generation Meteosat (SEVIRI)
       • GERB imaging (Geostationary Earth Radiation Budget) (RAL)
       • High-resolution imagery (1 km @SSP)
       • Extraction of meteorological and geophysical fields from the satellite image
         data to support meteorological, climatological and environmental activities
       • Collection and relay of data from Data Collection Platforms
       • Dissemination of processed satellite image data and meteorological products to
         the user community in a timely manner to support nowcasting and very short
         range weather forecasting
       • Archiving of mission data throughout the mission lifetime and implementation
         of dedicated user services for data search and retrieval, help desk and
         operational co-ordination


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GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                                                  MSG System (from 2004)


                                                                    Standby                                    Operational
                                                                     MSG                                         MSG




                                                                                         Data Collection
                                                                                         System Reports


        E xternal
        S upport   Satellite
        G round Applications
        S Stations Facilities   Primary Ground                                                                            High Rate
                                Station ( PGS )   Back-up                                                                 User Station
                    (SAF )                                                                                 Low Rate
                                                  Ground                                                                  (HRUS)
                                                  Station ( BGS )      Data Collection                     User Station
                                                                       Platforms (DCP)                     (LRUS)

                                         EUMETSAT Control
                                         & Processing Centre
                                         Darmstadt



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GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                               MSG Assembly Phase




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GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                      SEVIRI Design
       Spinning Enhanced Visible and InfraRed Imager

      • Telescope and Scan Assembly
           – compact 3-mirror telescope
           – scan mirror
      • Focal Plane and Cooler
           – large passive cooler (95K)
           – seasonal decontamination (winter)
      • Detection Electronics
           – warm/cold pre-amplifier
           – main detection unit
      • Blackbody for Calibration


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GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                          MSG Imaging Principle (SEVIRI)
    +5.5 deg




        0 deg
                                                                               Time (min)
                  Earth Imaging:
                  12 min 30 sec                         Retrace:
                                                      2 min 28 sec



     -5.5 deg
                                                  Calibration:
                                                     2 sec

                                                                                   Slide: 9
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                               SEVIRI Focal Plane Characteristics


                        HRV Detectors                                        IR & VNIR Detectors
                        Disposition                                          Disposition
          2.67 Km SSP                                             E-W Scan




                   2 Km SSP                                                   4.
                                                                                 8
                                                 4 x 1 Km pitch                      Km
                                                                                          SS                     3 Km SSP
                                                                                            P                    pitch




                                4 x 2 Km pitch                                                  6 Km SSP pitch




      HRV: 9 image lines per satellite                                       all other channels: 3 image
      revolution                                                             lines per satellite revolution



        SEVIRI Image Size: 3712 x 3712 (HRV:11136 x 5568) Pixels

                                                                                                                            Slide: 10
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
             SEVIRI Rapid Scan Examples (5 minute scans)




    Equatorial Eastern Africa
                                                                               Slide: 11
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                                 MSG SEVIRI Channels
                                                                            1 km
                  12           HRV
                                                                         (9 chains)
                  1          VIS 0.6          4 warm channels
                  2          VIS 0.8      (ambient temperature)
                  3          NIR 1.6
                  4           IR 3.9                             3.48 - 4.36, satur. 335K
                  5          WV 6.2
                  6          WV 7.3            8 cold channels                 3 km
                  7           IR 8.7           (passive cooling          (3 chains)
                  8           IR 9.7          down to 85-95 K)
                  9           IR 10.8
                  10          IR 12.0
                  11          IR 13.4

                                                                                      Slide: 12
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                               SEVIRI Imagery Overview




          1                      2                      3                      12




          4                      5                      6                      7




         8                       9                     10                      11

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GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                 Level 1.0 : Raw SEVIRI Measurements
                 Level 1.5 : Processed Image Data


      •   Image presentation in standard geostationary projection
      •   Radiometrically corrected (linearised, equalised, calibrated)
      •   Augmented by auxilliary and quality control information
      •   Accessible to users via near real time (HRIT/LRIT) dissemination service
          and UMARF archive (Header and Data Records)




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GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                      Geometric Correction (Rectification)

  State vector n with 136 parameters




                                         Jitter
                         Jitter                                          Rectified
                                       corrected      resampling
   Raw image           correction
                                        image                             image



                       radiometric
                        correction                                                   Landmarks
                                                                                     extraction
                                                                                                     Filtering
   Black-body                                           Observables
                                                         extraction
   calibration data

                                                                                          State vector
                                                                                              n+1

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GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                                           raw                                 rectified



   Satellite in sun
   synchronisation mode
   (true earth position
   derived from sun sensor




  Satellite in Earth
  synchronisation mode
  (true earth position derived
  from earth sensor, e.g. during
  eclipse)


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GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                   Radiometric Correction - Principle

       Counts (10 bit)
                                                                   Level 1.5 count - constant!


                          gain change




                    sensor degradation               Level 1.0 measured values
                                                     (example: represents a constant radiance
                                                                 Time


          “count” : satellite measurement for a given pixel (10 bit)
          radiance = cal_slope * count - cal_offset

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GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                    Radiometric Correction / Calibration
                           (Thermal Channels)

        •   Rescaling of raw counts (to account for gain changes)
        •   Conversion to radiances (applying ground measurements)
        •   Equalisation of 3 sensors
        •   Application of blackbody information
        •   Scale to 10 bit integers
        •   Apply cal_slope and cal_offset scaling



     cal_offset and cal_slope are initially only scaling parameters for the
     Level 1.5 data ==> ideally, these are also the calibration constants

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GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                    Radiometric Correction / Calibration
                           (Thermal Channels)

    The actual “validity” of cal_slope and cal_offset in terms of true
    calibration data is ensured by the MPEF product “Calibration
    Monitoring”:
      • Vicarious calibration using targets of know radiative properties
        and radiation models
      • Intersatellite calibration (e.g. with polar orbiters)


      In case of large disagreement: the MPEF calibration coefficients will
      be inserted into the Level 1.5 image header


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GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                            Calibration (Solar Channels)
                       SEVIRI Solar Channel Calibration (SSCC)

                        VIS0.6       VIS0.8




                                              HRV

                                                                      NIR1.6




                                                                               Slide: 20
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                            Calibration (Solar Channels)
                       SEVIRI Solar Channel Calibration (SSCC)




    SEVIRI                                                          SSCC Calibration
    L1.5/2.0                5-10 days                               Coefficients in Level 1.5
                             of Data                                Header
   ECMWF


                             Target               Pixel                                   QC
                                                                       RTM
                          Identification        Extraction                            Calibration




                                                                                                Slide: 21
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                                       SEVIRI Results

     Desert


       Sea




                                                                               Slide: 22
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                                 MSG GERB Instrument
              GERB: Geostationary Earth Radiation Budget
          •   wavebands: 0.32 - 4.0 m, 0.32 - 30 m (shortwave and total)
          •   longwave by subtraction
          •   pixel size: 44.5 x 39.3 km at nadir (NS x EW)
          •   co-registration: 3km wrt SEVIRI at nadir, within 15 min
          •   Earth scans of NS strips, combination of satellite spin and a despun mirror
              (6 minutes/image)




                                                                                            Slide: 23
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                                MSG GERB First Image




                       total                                        shortwave


                                                                                Slide: 24
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                                       GERB Example




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GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                              Data distribution
                           •Archived data access (U-MARF)

                           •Real-time data access (EUMETcast)




                                                                               Slide: 26
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                      EUMETCast Overview
                                                                               DVB BROADCAST




                EUMETSAT
                                                      DVB                      USERS
                                                      UPLINK


                                                                                         Slide: 27
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                          EUMETCast C-Band Coverage




                                                                               Slide: 28
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                   EUMETCast - DVB Satellite
                    Reception / Receiver Unit
     DVB Standard Hardware

    LNB Ku-band Satellite Dish      200 EUR

          DVB PCI Card              100 EUR


       DVB Multicast Software
                                     60 EUR
  (tq ®TELLICAST client software)
       Decryption unit (EKU)         40 EUR



      PC, Hard disk, Ethernet       800 EUR



                                    1.200 EUR



                                                                               Slide: 29
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                         MPEF Products
            Meteorological Products Extraction Facility




                                                                               Slide: 30
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                             EUMETSAT MPEF Products

         MPEF: Meteorological Products Extraction Facility
             Atmospheric Motion Vectors (AMV)
             Calibration Monitoring (CAL-MON)
             Clear Sky Radiance (CSR)
             Climate Data Set (CDS)
             Cloud Analysis (CLA)
             Cloud Top Height (CTH)
             Global Instability (GII)
             ISCCP Data Set (IDS)
             GPCP Precipitation Index (PI)
             Total Ozone (TOZ)
             Tropospheric Humidity (TH)

                                                                               Slide: 31
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                           Meteorological Product Extraction


                                       Schedule             Parameters          Products
          Image
                                                                                to GTS
          Data




          Forecast                           Product
                         Product                             Product               Product
                                             Quality
          Data           Generation                          Distribution          Verification
                                             Control




                                                                                Products
        Meteorological                Monitoring
                                                                                to U-MARF
        Observations                  Displays         Performance
                                                       Reports
                                                                            Products
                                                                            via Satellite




                                                                                                  Slide: 32
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                          MPEF Product Examples: AMV




                                                                    (screenshot from MPEF Console)




                                                                                             Slide: 33
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                           MPEF Product Examples: SCE



                                                                 02 September 2003, 07:30 UTC
                                                                 Scenes analysis (cloud detection)




                                                                  colours refer to clouds and different
                                                                surfaces (from background information)




                                                                                               Slide: 34
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                       MPEF Product Examples: SCE/CLA




                                                                    (screenshot from MPEF Console)




                                                                  colours refer to clouds in three
                                                                  different heights and different
                                                                    surfaces (from background
                                                                           information)



                                                                                               Slide: 35
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
             The Satellite Application Facilities
                            (SAF)
     In addition to the centralised Meteorological Product
     Extraction Facility in the EUMETSAT Headquarter in
     Darmstadt a Network of seven
     Satellite Application Facilities
     is under Development with the Objective to:
              • Derive additional Products and Services
              • Meet EUMETSAT requirements

              • Located at National Meteorological Services
              • User oriented network nodes

                                                                               Slide: 36
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
             The approved SAF Projects
    Seven SAF Projects were approved, related Cooperation Agreements
    established, and activities initiated.

                                                                                Council
     Acronym             Project                                                Approval

     NWC                 Support to Nowcasting & Very Short-Range Forecasting     1996
     OSI                 Ocean & Sea Ice                                          1997
     O3M                 Ozone Monitoring                                         1997
     NWP                 Numerical Weather Prediction                             1998
     CLM                 Climate Monitoring                                       1998
     GRM                 GRAS Meteorology                                         1999
     LSA                 Land Surface Analysis                                    1999


                                                                                   Slide: 37
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                           Meteosat Third Generation




                                                                               Slide: 38
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                                                      FDHSI Mission
                             ‘Core’      Central     Width    Minimum      Maximum       Reference    SNR/NEDT
                            channels    wavelength   (m)      Signal       Signal        Signal
                                          (m)
                           FD-VIS 0.4      0.443      0.02       1%           120%          1%            10
   MSG heritage
                           FD-VIS 0.6      0.645      0.05       1%           120%          1%            10
   New Channels
                           FD-VIS 0.8      0.865      0.04       1%           120%          1%            10
   Under review                                                                                           10
                       FD-NIR 1.3          1.375      0.03       1%           100%          1%
   Options             FD-NIR 1.6          1.61       0.06       1%           100%          1%            10

                       FD-NIR 2.1          2.13       0.05       1%           100%          1%            10

                           FD-IR 3.8        3.8       0.60      165 K        350 K         300 K         0.1 K

                           FD-IR 6.7        6.7       0.40      165 K        270 K         250 K         0.3 K

                           FD-IR 7.3       7.35       0.30      165 K        285 K         250 K         0.3 K
   Sampling dist.:
                           FD-IR 8.5       8.55       0.30      165 K        330 K         300 K         0.1 K
   1-3 km@SSP
                           FD-IR 9.7*      9.70       0.30      165 K        310 K         250 K         0.3 K

                           FD-IR 10.8      10.8       1.00      165 K        340 K         300 K         0.1 K

                           FD-IR 12.0      12.0       1.00      165 K        340 K         300 K         0.1 K

                       FD-IR 13.4+         13.4       0.30      165 K        300 K         270 K         0.2 K

                       FD-IR 14.0+         14.0       0.30      165 K        290 K         250 K         0.2 K

                       *
                       Channel FD-IR 9.7 will be discarded if a companion IR-Sounding mission is selected.
                       +
                           Channels FD-IR 13.4/ FD-IR 14.0 will be discarded if option FD-OPT 2 is selected.


                                                                                                                 Slide: 39
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
       EUMETSAT OVERALL GROUND INFRASTRUCTURE
                                                                             EPS CDA

                                                                             Svalbard                                   EUMETSAT HQ
                                                                                                                        Central Facilities

                               Exchange of IJPS                                                                         Acquisition and
                               data/cross-support                                                                       Control Station
                               with NOAA/USA

                                                                                                                         Back-up or
                                                                                                                         Support Station


                                                                                                                         Satellite Application Facility

                                                                                                          Madrid (E):     Support to Nowcasting and Very
                                                                                                                           Short Term Forecasting
                                                                                Helsinki
                                                                                                          Lannion (F):     Ocean and Sea Ice
                                                                                                          Helsinki (FIN):  Ozone Monitoring
                                                                                                          Offenbach (D):   Climate Monitoring
                                                        Copenhagen                                        Bracknell (UK):  Numerical Weather Prediction
                                        Bracknell                                                         Copenhagen (DK): GRAS Meteorology
                                                                 Offenbach                                Lisboa (P):      Land Surface Analysis
                                        MDD-FDRS
                                                              EUMETSAT HQ Darmstadt
                                                              MCC + MPEF
                           FDRS
                                    Lannion         Usingen
                                                                                                                             Data exchange/cross support
                                                    MSG PGS
                                                                                           Cheia                             with partners (EPS)
                                       Toulouse                                            Meteosat BGS
                                       MDD
                                                                     Fucino                               PGS Primary Ground Station
                                                                     Meteosat PGS                         MDD Meteorological Data Distribution
  Lisboa                                                                                                  BRGS Back-up and Ranging Station
                                                     Roma                                                 FDRS Foreign Data Relay Support
                   MadridEPS BUCC                    MDD                                                  CDA Command and Data Acquisition
                                                                                                          MCC Mission Control Centre
                                                                                                          MPEF Meteorological Product Extraction Facility



   Canary Island
   MSG BRGS


                                                                                                                                                          Slide: 40
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications
                                   MTP - MSG Comparison

    METEOSAT First Generation                                            METEOSAT Second Generation
            (MTP)                                                                 (MSG)
  • 3-Channel Radiometer                                               • 12-Channel Radiometer
  • 100 RPM Spin Stabilised                                            • 100 RPM Spin Stabilised
  • 5 Years Station Keeping                                            • 7 Years Station Keeping
  • 200 Watt                                                           • 600 Watt
  • 720 kg in GTO Orbit                                                • 2000 kg in GTO Orbit
  • 30 Minutes Image Interval                                          • 15 Minutes Image Interval
  • Sampling Distance 5 km                                             • Sampling Distance 3 km
    (2.5 km HRVIS)                                                       (1km HRVIS)
  • Radiometric Resolution 0.4 K                                       • Radiometric Resolution 0.25 K
  • Data Rate 333 kbps                                                 • Data Rate 3200 kbps
                                                                       • GERB Instrument



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GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring Applications

				
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