wmo space programme and igdds
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North-America-Europe Data Exchange, 3-5 May 2006 1
WMO Space Programme and IGDDS
Jérôme Lafeuille
WMO Space Programme
World Meteorological Organization
North-America-Europe Data Exchange, 3-5 May 2006 2
Outline
• WMO Space Programme
and the Space-based Global Observing System
• IGDDS and inter-regional data exchange
North-America-Europe Data Exchange, 3-5 May 2006 3
WMO Programmes
World Weather Watch ProgrammeWorld Weather Watch Programme
WMO Space ProgrammeWMO Space Programme
Natural Disaster Prevention and Mitigation Programme Natural Disaster Prevention and Mitigation Programme
Education and Training ProgrammeEducation and Training ProgrammeTechnical Cooperation ProgrammeTechnical Cooperation Programme
Regional ProgrammeRegional Programme
WorldWorldClimateClimate
ProgrammeProgramme
AtmosphericAtmosphericResearch Research
and and EnvironmentEnvironmentProgrammeProgramme
ApplicationsApplicationsofof
MeteorologyMeteorologyProgrammeProgramme
HydrologyHydrologyandand
WaterWaterResourcesResourcesProgrammeProgramme
WMO/OMM
North-America-Europe Data Exchange, 3-5 May 2006 4
WCPAMP
efficient use, common toolsIncreased awareness and skills
Promote data use :Information & training
cooperation on methods
AREP/GAW
NDPM
WWW
WCRP, GCOS
HWR / WHYCOS
CEOS / IGOS
CGMS
GEOSS SFCG ITWG IWWG
IPWG
Consolidated requirements
Improved observations coordinated system
Space-based observing systems Requirements & Implementation
Sat operators
TimelinessCost-effectiveness
Ensure data availabilityIGDDS
Programmes and science groups Satellite organizations and coordinating
bodiesCBSCM
Focal point
North-America-Europe Data Exchange, 3-5 May 2006 5
WCPAMP
efficient use, common toolsIncreased awareness and skills
Promote data use :Information & training
cooperation on methods
AREP/GAW
NDPM
WWW
WCRP, GCOS
HWR / WHYCOS
CEOS / IGOS
CGMS
GEOSS SFCG ITWG IWWG
IPWG
Consolidated requirements
Improved observations coordinated system
Space-based observing systems Requirements & Implementation
Sat operators
TimelinessCost-effectiveness
Ensure data availabilityIGDDS
Programmes and science groups Satellite organizations and coordinating
bodiesCBSCM
Focal point
North-America-Europe Data Exchange, 3-5 May 2006 6
• operational meteorological LEO satellites Baseline = 4 sat (2 am + 2 pm) + contingency Optimized orbital planes for efficient temporal sampling
• operational meteorological GEO satellites Baseline = 6 sat + contingency Optimized equatorial locations for efficient coverage
• Research and Development satellites declared by operators as contributing to the GOS
• Operational inter-calibration system (GSICS) (In future)
Space-based Global Observing System
North-America-Europe Data Exchange, 3-5 May 2006 7
WWW’s space-based component of the Global Observing System (2006)
Unparalleled international cooperation has been achieved in satellite activities
North-America-Europe Data Exchange, 3-5 May 2006 8
Dialogue box
Year 2009
Ctrl+ d to increment the date
Sensor category ROS
23 0 (click and scroll)
Ctl+l increments LST (non sunsyn)
IRIM Infrared Imager
IRS Infrared Sounder
IRHS Infrared Hyperspectral Sounder
MWI Microwave Imager
MWS Microwave Sounder
ERB Earth Radiation Budget
CHE Chemical Composition Obs.
ROS Radio Occultation Sounder
SCAT Scatterometer
ALT Altimeter
PRR Precipitation Radar
SAR Synthetic Aperture Radar Imag.
ALL Any sensor
( North Pole view )
MLST: 06h
LS
T:
00
h
Noaa-am
METOP
Meteor-M1
NPOESS C1
NPOESS-C2
Noaa-pm
FY-3A
FY-3B
Jason
Envisat
TRMM
Quikscat
Terra
Aqua
Aura
GPM core
Cosmic-1-2
Cosmic-3-4
Cosmic-5-6
Sentinel3
Megha-tropiques
LST: 18h
LS
T:
12
h
Distribution of planned sensors in Low Earth Orbit
North-America-Europe Data Exchange, 3-5 May 2006 9
Scope of the GOS
• Towards a WMO Integrated Global Observing System (WIGOS) covering the needs of all WMO programs: 3 Earth-system domains (atmosphere, ocean, land) and 2 cross-cutting themes (climate, disasters)
• WIGOS to become a major contributor to GEOSS
North-America-Europe Data Exchange, 3-5 May 2006 10
WCPAMP
efficient use, common toolsIncreased awareness and skills
Promote data use :Information & training
cooperation on methods
AREP/GAW
NDPM
WWW
WCRP, GCOS
HWR / WHYCOS
CEOS / IGOS
CGMS
GEOSS SFCG ITWG IWWG
IPWG
Consolidated requirements
Improved observations coordinated system
Space-based observing systems Requirements & Implementation
Sat operators
TimelinessCost-effectiveness
Ensure data availabilityIGDDS
Programmes and science groups Satellite organizations and coordinating
bodiesCBSCM
Focal point
North-America-Europe Data Exchange, 3-5 May 2006 11
ACRONYMS• IGDDS: Integrated Global Data
Dissemination Service
• ADM: Advanced Dissemination Methods - routine broadcast (push) - normally via commercial telecom satellite - following current standard (DVB-S, IP)
• RARS: Regional ATOVS Retransmission Service (e.g. EARS)
• WIS : (future) WMO Information System
North-America-Europe Data Exchange, 3-5 May 2006 12
IGDDS Background
Estimated Evolution of Satellite Data Rates based on Direct Broadcast rates
0.1
1
10
100
1000
Mb
/s
NOAA pmMETOPFY-1FY-3NPOESS-1+2Meteor-M
MeteosatMSGGOES E,WGOES-RMTSATElektro-LFY-2-C,EFY-4-A,BTotalNOAA pmMETOPFY-1FY-3NPOESS-1+2Meteor-M
MeteosatMSGGOES E,WGOES-RMTSATElektro-LFY-2-C,EFY-4-A,BTotal
TotalLogarithmic scale !
North-America-Europe Data Exchange, 3-5 May 2006 13
IGDDS Definition and baseline• IGDDS : satellite data & products circulation scheme
to meet the needs of WMO Programmes for improved access
as agreed in WMO Space Programme Implementation Plan
• IGDDS Baseline – Integrates all satellite-related data fluxes– Global exchange of satellite data among regional centres– Dissemination relying on ADM and Direct Broadcast
• ADM mainly via Digital Video Broadcast by telecom satellite• cost-efficient for end-users and for operators
– fully integrated within the WMO Information System (WIS) but identified end-to-end service for space-based data
North-America-Europe Data Exchange, 3-5 May 2006 14
IGDDS definition and baselineIGDDS regional/global implementation
Data from operational Polar and
Geostationary satellites available within region A
Data Collection and Products Centre
Other data : R&D, high-level products
Region ARegion B
Data from operational Polar and
Geostationary satellites available within region B
Other data : R&D, high-level
products
Data Collection and Products Centre
Data Dissemination
User Community #1
User Community #2
ADM #1 ADM #2
Other distribution means
Inter-regional Data Exchange
Data Dissemination
User Community #1
User Community #2
ADM #1 ADM #2
Other distribution means
North-America-Europe Data Exchange, 3-5 May 2006 15
IGDDS definition and baselineIGDDS within WIS in each region
IGDDS components
Inter-operability
and data exchange
Data from operational Polar and
Geostationary satellites available within region
(Satellite) Data Collection & Product Centre
Other regional data :R&D, high-level
products
Other data communication means
Data Dissemination (possibly shared with non-satellite)
User Community #1
User Community #2
ADM #1 ADM #2
Data Collection & Product Centres
Global Information System Centre
All kinds of WMO programmes data & products (mostly non-satellite)
Data Collection & Product Centres
Users
Other data-communication means
National Centres
North-America-Europe Data Exchange, 3-5 May 2006 16
Data acquisition activities:RARS for timely access to polar data
• EARS (Eumetsat) covers Europe, N-America and North Pole– expanding to include new data (AVHRR, ASCAT from METOP)– distribution via GTS and DVB-satellite broadcast
• Plan for Asia-Pacific RARS (distribution via GTS and Internet/FTP) • Plan for South-America RARS (distribution via GTS and
Internet/FTP)
Regional ATOVS Retransmission Services (RARS) complement the baseline ground segments of polar satellites:
Data acquired by several local receiving stations are concentrated, processed and redistributed for regional and global NWP users
Timeliness= 30 minutes instead of 2-3 hours for global data.
North-America-Europe Data Exchange, 3-5 May 2006 17
Current and planned RARS - December 2005
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
-180 -160 -140 -120 -100 -80 -60 -40 -20 0 20 40 60 80 100 120 140 160 180
Longitude
La
titu
de
AP-RARS EARS SA-RARS
Data acquisition activities:Data acquisition activities:
North-America-Europe Data Exchange, 3-5 May 2006 18
Data dissemination activities IGDDS dissemination approach
• Global ADM coverage possible with at least 4 “regional” dissemination services to be established by satellite operators
or consortia including satellite operators critical need for Asia-Pacific region
Sat operators to take responsibility for ADM dissemination services over regions consistent with the location of their primary users (e.g. footprint of their GEO satellites )
Target date : January 2007
Dissemination concept reviewed at ET-SUP, CGMS, RARS-ADM workshop, and reported at CM-6 (Jan. 2006)
North-America-Europe Data Exchange, 3-5 May 2006 19
Data dissemination activities ADMs by satellite operators
• Europe : Eumetcast-Ku band (Eumetsat)
• Africa and Caribbean: Eumetcast-C band
• North-, Central & South-America : – pilot Eumetcast-C band for 2006-2008 considerations for transition to a NOAA ADM by 2008
• Asia-Pacific regions :– current Shinetek ADM over China trial planned in 2006 for wide Asia-Pacific ADM including
DVB-S broadcast complemented by terrestrial links
• Group on Earth Observation (GEO): Eumetcast serving as a demo for GEOnetcast within GEOSS
North-America-Europe Data Exchange, 3-5 May 2006 20
Inter-regional data exchange• Growing need for near real-time access to global data sets
• Evolving data requirements to be reviewed on regional basis– North America-Europe Data Exchange (NAEDE) and Asia Pacific
Satellite Data Exchange and Utilization (APSDEU) are excellent models
– Rolling Requirements Review mechanisms still to de discussed but NAEDE and APSDEU are expected to contribute to the process
• Technical means for data exchange to be agreed by satellite operators – building on existing means if relevant
– within WIS context
– considering new requirements (e.g. adaptative observations ?)
North-America-Europe Data Exchange, 3-5 May 2006 21
Conclusion
• North America Data Exchange meeting provides WMO SP observer with valuable opportunity for better awareness of status, plans and issues related to satellite data use by major NWP centres
• The activity of this informal group is of high interest with respect to IGDDS objectives
• Thank you !
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