Overview of China Spatial Information Gird (SIG) Research Works Presentation to WGISS-16 Chiang Mai, Thailand September 15, 2003 Pro. Liu Dingsheng, Dr.

Overview of China Spatial Information Gird (SIG) Research

Works

Presentation to WGISS-16

Chiang Mai, Thailand

September 15 , 2003

Pro. Liu Dingsheng, Dr. Li guoqing {dsliu,gqli}@ne.rsgs.ac.cn

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Summery

About China SIG, Background and Project structure

Aim and our focus Finished works overview Key technologies

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China SIG plan

A national research plan funded by China government

To build a spatial information sharing and spatial resource co-operation platform

some huge special application system will use SIG, such as climate, disaster, area pollution, and so on

Not only a data grid, but also an application grid

Started from middle 2002, shall continue about 3 years

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SIG structure

Basic Grid protocols research

Reconstructing the SI resources

according to gridCreating necessary

SIG tools

SIG platformSets of standards

Resources and

Environment Grid

Urban spatial information

servicesGrid

Other special application

Grid

Other special application

Grid

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SIG Architecture

Three Layer Grid Structure Basic module layer: include basic grid protocols , such as

most part of Globus and GridFtp, which do not need to be modified.

Internal module layer: part of basic grid middleware which need to be rebuilt according to SI characters. Such as RFS2.0, GARE, and other modules.

External module layer: sets of grid tools, such as GAPL language, Interface system, DMS tools, BLL etc.

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BasicGridModule

New gridmodule

GARE FRS

Grid tools

GAPL

IRS/IS

DMS

BLL

External module layer

Internal module layer

Basic module layer

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Aim

Information sharing (include Eo data ,GIS data, survey data , statistic data )

Software sharing (include Image processing software, GIS software, special software, network enable equipments)

Synactic Application (how to build a whole application work flow with SIG resources)

Facing to the new coming spatial information (distributed data , huge data, new data resources, new data using methods, data mining etc. )

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Our SIG research works focus on the following:

How to share distributed and different spatial data without disturbing its normal using.

How to integrate spatial analysis software (RS & GIS)

How to descript user’s application and how to submit it to GRID

How to built the interactive interface between grid and web browser (inter-services and intra-services)

A series of standards for SIG building

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Three steps

The first step To build a mini-test grid with three layers structure

The second step To increase compounds of SIG To get high performance Many applications

The last step To build VOs , running system

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CASNET/ I NTERNET(10M)

159. 226. 224. 51

159. 226. 224. 52

159. 226. 224. 53

EO-DS

I nterfaceservi ce

DMS, FRS, PCI

166. 111. 68. 180

Central FRSCA GARE、

RFS,GI S-DS

Geomedi a GI S

LINUX

windows

windows

windowswindows

windows

T-SIG structure

3M

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Finished work

Built a test mini-grid T-SIG, which connecting RSGS-CHINA, Tsinghua Univ. and CAF-CHINA.

Registered resources include two RSGS remote sensing image databases(TM as example), a CAF forestry GIS database, PCI desktop software, GeoMedia GIS software.

EO Data Viewer based on DMS for remote sensing data.

Visualization Interface based on IRS. (DMS and IRS have same work mode as registry services)

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Finished work (Con.)

A description language GAPL, and its runtime environment GARE for application

Dedicated spatial resource register RFS, which modified with P2P technology.

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A simple grid application example– NDVI

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Locate at Tsinghua University

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Locate at China RSGS

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include two TM

databases In RSGS and CAF

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Locate at China RSGS

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Running at RSGS

open-lab.

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Key technologies

RFS: modified Register service DMS: spatial data agent and data mining

service IS: visual interface tools GAPL: grid work flow description language

for application GARE: grid application runtime control

environment

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Grid PCI: most PCI function can be used in grid.

Grid GeoMedia: part GeoMedia GIS function can be used in grid, especially the data access.

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Welcome visiting our project sitehttp://159.226.224.51/app

We also hope to have co-operation with CEOS-GRID project

Thanks!