wmo space programme and igdds

North-America-Europe Data Exchange, 3-5 May 2006 1

WMO Space Programme and IGDDS

Jérôme Lafeuille

WMO Space Programme

World Meteorological Organization


Outline

• WMO Space Programme

and the Space-based Global Observing System

• IGDDS and inter-regional data exchange


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


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


WCPAMP




AREP/GAW

NDPM

WWW

WCRP, GCOS

HWR / WHYCOS

CEOS / IGOS

CGMS


IPWG




Sat operators




bodiesCBSCM

Focal point


• 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


WWW’s space-based component of the Global Observing System (2006)

Unparalleled international cooperation has been achieved in satellite activities


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


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


WCPAMP




AREP/GAW

NDPM

WWW

WCRP, GCOS

HWR / WHYCOS

CEOS / IGOS

CGMS


IPWG




Sat operators




bodiesCBSCM

Focal point


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


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 !


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


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


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


IGDDS definition and baselineIGDDS within WIS in each region

IGDDS components

Inter-operability

and data exchange


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


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.


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:


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)


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


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 ?)


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 !

wmo space programme and igdds

Documents

europe data exchange

data worksheet

outlinewmo space programme

wwws spacebased component

low earth orbitnorthamerica

global observing system

synchronous orbits

mitigation programme