CHINA REMOTE SENSING SATELLITE GROUND STATION,

CHINESE ACADEMY OF SCIENCES

http://www.rsgs.ac.cn

China Grid Research Update

Li Guoqing , RSGS , CAS, China

WGISS 19, CordobaApril 21, 2023

RSGS,CAS

Abstract

Funding conditionBuild a Application-oriented Grid CGDP: China Grid Portal of

Scientific Spatial Data

RSGS,CAS

Funding Condition

• The first funding closed at the end of 2003.

• Research work has been interrupted during almost whole 2004

• New funding started from the last Oct.

2004 2005

RSGS,CAS

Build a Application-oriented Grid

• Because – Grid have been accepted as

important information utilization and serving technology.

– Grid research works have been taken widely in the past two years.

– Many grid tools and grid demo systems have been finished.

=> Feasibility

RSGS,CAS

• But– It is difficult to configure a original

data source to be grid services.– It is also difficult to add new spatial

processing software to be gird-useful services.

– It is still not easy to mine right data form grid data resources.

– Even to build a Grid environment is a very professional operation.

=> Problem in use

RSGS,CAS

• So we will do:– Feasibility -> Usability.– Build a Application-oriented Grid

Environment.– Grid container

• In SIG, will use uniform grid container as basic middleware and protocols.

– Grid Gateway• Bring in-LAN resource to be a node of

Grid in form of some services.

RSGS,CAS

structure

grid manage center

•Registration center(UDDI/JNDI)•CA publisher•Trade database•Version control

SIG Container

Node manage tools

Services agencies

prox

y

prox

y

Services entity

Services entity

Network

portal

SIG Nodes

SIG Gateway

http

Resource

RSGS,CAS

• SIG Container– Version 0.1 will be published at this mont

h• Tomcat -Web Application Container• Axis -Web Service Container• Globus -WSRF Service Container • UDDI -as a web application, connectio

n to UDDI center

RSGS,CAS

– SIG Container Version 1.0 will include:• Tomcat -Web Application Container• Axis -Web Service Container• Globus4 -WSRF Service Container • UDDI -as a web application• CA -a application • SFT -high performance gird file prot

ocol • Workflow - as a web application• Workflow building - as a java swing application• Trading -tools• Version -tools to control SIG Container version

Will publish at July,2005

RSGS,CAS

• SIG Grid Gatway– Remote sensing processing node gateway

• Cluster-based Parallel Remote sensing image process node (PIPS2005 by RSGS,CAS)

• Other themes processing resource (by IRSA,CAS)• Contract with commercial software to build their SIG

middleware. (SuperMap)– Spatial Data server node gateway– Data service related node

• Data Format Transfer Service• Catalogue Offline Service• Data Mining Service

RSGS,CAS

China Grid Portal of Scientific Spatial Data(CGDP)

• Working for Chinese scientific research

• Collection high-quality free EO-data • Access mode: web service and SIG• in Chinese and English• Data Gateway between outside and

inside china• Will be found in the end of this year

RSGS,CAS

CGDP Client

user

SIG Data Resources

Oversea Free Data Resources

ICS Offline Catalogue

DMSOnline query

FTSFormat Transfer

CGDP