-WAG step 1 outcome -WAG step 2 plans -WAG in CNES project -WAG & GRID relations with other WGISS...

-WAG step 1 outcome-WAG step 2 plans-WAG in CNES project-WAG & GRID relations with other WGISS activities

WAG ReportCurrent Status and Plans,

JP Antikidis, Paul Kopp,WGIS25,Sanya, febr.2008

WAG step 1

-Completed in end 2007 with final retained architecture:

- Globus Toolkit- Open issues (Portal interfaces)- Send for comments to initial partner

agencies (Ukraine, China)

WAG step 2

Prototype deployement :

- Based on WAG step1 architecture (SOA)- Modifications according to partner

reactions

- Remaining open points be clarified- Architecture update

- Sharing of Wide Area Grid functions

- Full deployement toward sept.2008

WAG induced experience

Not only technical but bringing:

- Common appreciation of decentraised work

- Demonstration of a distributed system responsibilities

- Demonstration of a full decentralised while fully functional system

=> May induce interesting solutions for meeting GEO/GEOSS objective

WAG in CNES projects

-Has been selected as the "ground part" for the e-CORCE programme (presented at GRID symposium ESA, january 2008) - Will be experimented in the frame of science

distributed applications (CNRS/CNES Grid institute)

Paul Kopp – WGISS 24 – October, 20076

E-CORCE as a multilayerSpace-ground GRID for 2015 !

104 satellites, <10Meuros, 28 km swath,200 kgs, 80Mb/s, 100 Grid Nodes


The one-meter, one-day, one-Earth nightmare !

Some few figures extrated from current state of the art : 5x10 pixels/day= more than 10 000 000 000 000 000 bits

Overall satellite system raw troughput around 7000 Gigabits/s !!According to present sensor technologies (20 000 pixels CCDs)

means 125 satellites @67 Gb/s !!!20 receiving centre with 700 Gb/s dump speed !!!

How to break the information wall !!! ?Grid on the ground: yes ,but not enough !Distributed satellite,transmission, and receiving stations: yes but not enough !

We need : Information society techno and concepts +Grid integrating Space & Ground components in a one Shell


e-CORCE is a Grid-based distributed instrument

Three fully integrated technical layers as a unified concept:

■ THE SPACE CELLULAR LAYER:Makes use of a fully automated satellite constellation covering the whole earth in a systematic fashion (“Saturation”). Full cover is achieved typically in a 1 day time with a a 1 meter ground resolution (100 or more units are contemplated)

■ THE TELECOM CELLULAR LAYER:Satellites are able to send immediatly their highly compressed (jpeg) information to ground centres. Telecom operation will be automated and highly simplified in such a way no station operator is required. Use of IP concept will suppress the need for separate TM/TC channels.

■ THE GROUND CELLULAR LAYER (Wide Area Grid) Owing to the enormous quantity of information to be treated in a one day time, all processes will be fully distributed all over the Earth and allow an acceptable local workload. Grid technology is able to carry this organisation keeping in mind the Earth mosaic will never be centralised leading to a “Virtual Earth creatioon” (Looksd like e-Tube technology)

e-CORCE cannot exist without getting together the full association of three highly distributed technical layers that makes it one and only one instrument spread all other the earth !

e-CORCE cannot exist without getting together the full association of three highly distributed technical layers that makes it one and only one instrument spread all other the earth !


The system "brain" (Wide Aera Grid)

Virtual Earth distributed 1 meter dayly mosaic Accessible from portals

“Pro Market”

“Mass Market”

“Thematic Market”


■ Overall computerized capacity brought by 5000 PCs (2008), 1000 PCs (2015) spreaded over 50 to 100 receiving and processing centers may generate on a daily basis the world-mosaic at 1 meter resolution

■ Typically any of he WAG node will make use of 20 PCs(2015) to create its local mosaic.

E-CORCE Ground cellular processing requirementsl

WAG & GRID role with respect to upcoming WGISS/GEO issues

-We need infrastructure for future for cooperative and automated systems (eg):

-- Sensor Web (Web infra-structure)

-- Integrated Constellation (LSI constellation)

-- Thematic cooperative organisations


IP

IP

IP

IPIP

IP

IP

IP

Satellites are “seen” by the system as spaceconnected to WAG nodes. Each Node take care of:- data reception over the antenna footprint- Image decompression- calibration and local mosaic creation.

Information stay on site and accesible from any client as a “contributing IP”to the world-wide mosaic

IPs

E-CORCE seen as a SensorWeb managed by a WAG


To day EO large scale objectives

■World-wide follow-on ozone■World-wide follow-on of sea state (MERCATOR)■World-wide follow-on of vegetation index■World-wide follow-on of crop and food resources■GMES programme ■GEO endeavour■CEOS Constellations■Sensor Web concepts■....

■Can we afford on the long run to pile-up investments as we do today ?

-WAG step 1 outcome -WAG step 2 plans -WAG in CNES project -WAG & GRID relations with other WGISS...

Documents

Transcript of -WAG step 1 outcome -WAG step 2 plans -WAG in CNES project -WAG & GRID relations with other WGISS...