gofc/gold-fire workshop on global geostationary fire monitoring applications slide: 1 overview of...
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GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 1
OVERVIEW OF THE MSG SYSTEMOVERVIEW OF THE MSG SYSTEM
Y. Govaerts
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 2
OVERVIEW
• Mission overview
• Spacecraft
• Ground segment
• Data distribution
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Current and future Satellite Programmes
Programme
MTP: Meteosat Transition Programme
MSG: Meteosat Second Generation
EPS: EUMETSAT Polar System
OSTM: Ocean Surface Topography Mission
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EUMETSAT SATELLITE PROGRAMMESEUMETSAT SATELLITE PROGRAMMES
METEOSAT
MSG
• Meteosat-5
• Meteosat-6
• Meteosat-7
• MSG-1
• MSG-2• MSG-3
EPS
• Metop-1
• Metop-2
• Metop-3
96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12
Over Indian Ocean since 7/98
Hot stand by at 10°E (since 10/02)
13
15
16
1714
NominaI operationestimated lifetime
Approved
Non nominal operation
Estimated fuel margin
Available for launch
IODC at 63°E
Planned
• MSG-4
JASON-2
Operational S/C at 0°(since 6/98)
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 5
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
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 6
MSG System (from 2004)
Data CollectionPlatforms (DCP)
Raw & Processed Images and other data
Processed Images
and other data
Data CollectionSystem Reports
EUMETSAT Control & Processing CentreDarmstadt
High RateUser Station(HRUS)
Primary Ground Station ( PGS )
Low RateUser Station(LRUS)
Satellite Applications
Facilities ( SAF )
LRIT
HRIT
Standby MSG
OperationalMSG
E xternal S upport G round S Stations
Dat
a fr
om o
ther
m
eteo
rolo
gica
l sat
ellit
es
Back-up Ground Station ( BGS )
Satellite Control
Satellite Contro
l (Back-up)M
onito
ring
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 7
MSG Assembly Phase
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 8
SEVIRI DesignSpinning 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
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 9
MSG Imaging Principle (SEVIRI)
-5.5 deg
+5.5 deg
0 deg
Time (min)
Earth Imaging:12 min 30 sec Retrace:
2 min 28 sec
Calibration:2 sec
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SEVIRI Focal Plane Characteristics
HRV Detectors Disposition
IR & VNIR Detectors Disposition
4 x 1 Km pitch
4 x 2 Km pitch
2 Km SSP
2.67 Km SSP E-W Scan
3 Km SSP pitch
6 Km SSP pitch
HRV: 9 image lines per satellite revolution
all other channels: 3 image lines per satellite revolution
SEVIRI Image Size: 3712 x 3712 (HRV:11136 x 5568) Pixels
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 11
SEVIRI Rapid Scan Examples (5 minute scans)
Equatorial Eastern Africa
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 12
12 HRV1 km
(9 chains)1 VIS 0.6 4 warm channels
2 VIS 0.8 (ambient temperature)
3 NIR 1.6
4 IR 3.9
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
MSG SEVIRI Channels
3.48 - 4.36, satur. 335K
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SEVIRI Imagery Overview
1 2 3 12
4 5 6 7
8 9 10 11
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• 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)
Level 1.0 : Raw SEVIRI Measurements Level 1.5 : Processed Image Data
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 15
Geometric Correction (Rectification)
Raw image
Jitter corrected
image
Rectified image
Jitter correction
resampling
State vector n with 136 parameters
State vector n+1
FilteringObservablesextraction
Landmarksextraction
Black-body calibration data
radiometric correction
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 16
Satellite in sun synchronisation mode(true earth position derived from sun sensor
raw rectified
Satellite in Earth synchronisation mode(true earth position derived from earth sensor, e.g. during eclipse)
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 17
Radiometric Correction - Principle
Level 1.0 measured values (example: represents a constant radiance
Counts (10 bit)
Time
sensor degradation
gain change
Level 1.5 count - constant!
“count” : satellite measurement for a given pixel (10 bit)radiance = cal_slope * count - cal_offset
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 18
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
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 19
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
Radiometric Correction / Calibration(Thermal Channels)
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 20
Calibration (Solar Channels)SEVIRI Solar Channel Calibration (SSCC)
VIS0.6 VIS0.8
HRV
NIR1.6
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 21
Calibration (Solar Channels)SEVIRI Solar Channel Calibration (SSCC)
5-10 days of Data
TargetIdentification
PixelExtraction
RTMQC
Calibration
SEVIRI L1.5/2.0
ECMWF
SSCC Calibration Coefficients in Level 1.5 Header
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 22
SEVIRI Results
Desert
Sea
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 23
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)
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 24
MSG GERB First Image
total shortwave
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 25
GERB Example
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 26
Data distribution
•Archived data access (U-MARF)
•Real-time data access (EUMETcast)
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 27
EUMETCast Overview
USERSDVB UPLINK
EUMETSAT
DVB BROADCAST
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 28
EUMETCast C-Band CoverageEUMETCast C-Band Coverage
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 29
EUMETCast - DVB Satellite Reception / Receiver Unit
DVB Standard Hardware
LNB Ku-band Satellite Dish 200 EUR
DVB PCI Card 100 EUR
DVB Multicast Software (tq ®TELLICAST client software)
60 EUR
PC, Hard disk, Ethernet 800 EUR
1.200 EUR
Decryption unit (EKU) 40 EUR
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 30
MPEF ProductsMeteorological Products Extraction Facility
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 31
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)
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 32
Meteorological Product Extraction
ProductGeneration
ProductQualityControl
ProductDistribution
ProductVerification
Image Data
Forecast Data
Meteorological Observations
Productsto GTS
MonitoringDisplays
Schedule
Productsvia Satellite
Productsto U-MARF
Parameters
PerformanceReports
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 33
MPEF Product Examples: AMV
(screenshot from MPEF Console)
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 34
MPEF Product Examples: SCE
02 September 2003, 07:30 UTCScenes analysis (cloud detection)
colours refer to clouds and different surfaces (from background information)
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 35
MPEF Product Examples: SCE/CLA
(screenshot from MPEF Console)
colours refer to clouds in three different heights and different
surfaces (from background information)
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 36
The Satellite Application Facilities The Satellite Application Facilities (SAF)(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
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 37
The approved SAF ProjectsThe approved SAF Projects
Seven SAF Projects were approved, related Cooperation Agreements established, and activities initiated.
NWC Support to Nowcasting & Very Short-Range Forecasting 1996OSI Ocean & Sea Ice 1997O3M Ozone Monitoring 1997NWP Numerical Weather Prediction 1998CLM Climate Monitoring 1998GRM GRAS Meteorology 1999LSA Land Surface Analysis 1999
Acronym Project CouncilApproval
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 38
Meteosat Third Generation
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 39
FDHSI Mission‘Core’
channelsCentral
wavelength(m)
Width(m)
MinimumSignal
MaximumSignal
ReferenceSignal
SNR/NEDT
FD-VIS 0.4 0.443 0.02 1% 120% 1% 10
FD-VIS 0.6 0.645 0.05 1% 120% 1% 10
FD-VIS 0.8 0.865 0.04 1% 120% 1% 10
FD-NIR 1.3 1.375 0.03 1% 100% 1% 10
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
FD-IR 8.5 8.55 0.30 165 K 330 K 300 K 0.1 K
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.
MSG heritage
New Channels
Under review
Options
Sampling dist.:1-3 km@SSP
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 40
EUMETSAT OVERALL GROUND INFRASTRUCTURE
Meteosat PGS
Fucino
MDDRoma
Lannion
MDDToulouse
Madrid
EUMETSAT HQ DarmstadtMCC + MPEF
BracknellMDD-FDRS
Helsinki
Lisboa
FDRS
Exchange of IJPSdata/cross-support with NOAA/USA
Copenhagen
Offenbach
UsingenMSG PGS
EPS CDA
Canary IslandMSG BRGS
PGS Primary Ground StationMDD Meteorological Data DistributionBRGS Back-up and Ranging StationFDRS Foreign Data Relay SupportCDA Command and Data AcquisitionMCC Mission Control CentreMPEF Meteorological Product Extraction Facility
Data exchange/cross supportwith partners (EPS)
EUMETSAT HQCentral Facilities
Acquisition and Control Station
Back-up or Support Station
Satellite Application Facility
Madrid (E): Support to Nowcasting and Very Short Term ForecastingLannion (F): Ocean and Sea IceHelsinki (FIN): Ozone MonitoringOffenbach (D): Climate MonitoringBracknell (UK): Numerical Weather PredictionCopenhagen (DK): GRAS MeteorologyLisboa (P): Land Surface Analysis
CheiaMeteosat BGS
EPS BUCC
Svalbard
GOFC/GOLD-FIRE Workshop on Global Geostationary Fire Monitoring ApplicationsSlide: 41
MTP - MSG Comparison
METEOSAT First Generation (MTP)
• 3-Channel Radiometer
• 100 RPM Spin Stabilised
• 5 Years Station Keeping
• 200 Watt
• 720 kg in GTO Orbit
• 30 Minutes Image Interval
• Sampling Distance 5 km (2.5 km HRVIS)
• Radiometric Resolution 0.4 K
• Data Rate 333 kbps
METEOSAT Second Generation (MSG)
• 12-Channel Radiometer
• 100 RPM Spin Stabilised
• 7 Years Station Keeping
• 600 Watt
• 2000 kg in GTO Orbit
• 15 Minutes Image Interval
• Sampling Distance 3 km (1km HRVIS)
• Radiometric Resolution 0.25 K
• Data Rate 3200 kbps
• GERB Instrument