New Generation SDI and Cyber-Infrastructure Prof. Guoqing Li CEODE/CAS March 29, 2009, Newport...
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Transcript of New Generation SDI and Cyber-Infrastructure Prof. Guoqing Li CEODE/CAS March 29, 2009, Newport...
New Generation SDI and Cyber-Infrastructure
Prof. Guoqing LiCEODE/CAS
March 29, 2009, Newport Beach, USAPresented to 4th China-US Roundtable Meeting on CODATA
Outline
Spatial Data Infrastructure Trends of New Generation SDISuggestions to US-China Cyber-
Infrastructures
Spatial Data Infrastructure
SDI Concept from WIKIPEDIA
SDI is a framework of spatial data, metadata, users and tools that are interactively connected in order to use spatial data in an efficient and flexible way
Spatial Data Acquire(spaceborne, airborne, in-situ)
Spatial Data Production
Spatial Data Infrastructure
Spatial Data Application
Understand to SDITechnical view
Huge Database/Warehouse/Repository Distribution systemMass storageHigh speed network connectionHigh performance processing
Understand to SDIData Policy view
Data formatData storage placeData access policyMetadata definition
Management viewDomain/Institute/Nation/Inter-Nation/Global levelFinancial CostTime Cost
Technical framework of SDI
Data Archive Database Metadata
Interoperation
On-demand Virtualization Cloud
Trend
Clearinghouse
Real SDI
Federal SDI
Virtual SDI
Trends of New Generation SDI
DecentralizationCentralization
Centralization had been regarded as the character of SDIData, from different places with different format, was moved to the c
entre database with transform to be uniform format
Why Decentralization?Data democracyOriginal format is always the best format to record the dataDe-centralization ≠ None-center
De-centralization = Multi-center
Cyber-Technology related
High speed network
Grid, Web-service
VirtualizationClassical SDI: Center with Data
Data was always regarded as the essential component of SDILess attention to promotion of data service and professional
application scenarios Too many data center and too many application scenarios
Virtual SDI: Center without DataBasing on mass existent SDI data facilitiesFocusing on specially and professional service capability for certain
applicationCyber-Technology related
High speed network
Clearinghouse
Grid, Cloud
Portal
From Data to InformationClassical SDI just provides the data stored
The same data to check-in and check-outFormat uniform was taken only before achievedThe fact: the data stored is always not the data user needs
New Generation SDI can provide information directly to userDynamic on-demand data re-constructed (format, subset, mosaic,
preprocess, temporal sequence and etc)Information generated with installed scientific models
Cyber-Technology related
On-demand service
Real-time processing
High performance computation
Multi-AgencyClassical SDI is based on agency/institute domain
Space Agency is the main data contributor of SDISDI is reasonable and easy to be built within certain agency (for
funding, management, operation mechanism and etc)Problem: limited data centers cannot fit the requirement from more
and more application scenarios
Multi-Agency support new SDICross-agency: space agencies work together to operate the
federation SDIOut-of-agency: the-third-part partner to operate the virtual SDI for
space agencies
Cyber-Technology related
High speed network
Virtual constellation
GlobalThe fact of global change forces SDI to be the global-cover data
facilitiesA global covered SDI should be a virtual SDI to connect and re-o
rganize the existent distributed SDIs.
Cyber-Technology related
High speed network
Distribution technology
Cloud
Examples of NG-SDI
GENESI-DR (GGround EEuropean NNetwork for EEarth SScience IInteroperations - DDigital RRepositories) To collect 20PB Spatial data from European agencies within 2 years To provide lots of on-demand information products based on original arc
hived data
Examples of NG-SDI
GEOSS Portals (ESRI/ESA/COMPUSULT)
dataset dataset dataset
GEOSSRegistration
ESRIPortal
ESAPortal
CompusultPortal
dataset
Examples of NG-SDI
ECHO11 Data Providers2162 data sets67 Million granules25 Million Browse images
http://www.echo.nasa.gov/status/holdings/holdingsReport.shtml
Suggested Cooperation Opportunities
China-US Global Change scientific Data Platform (GCDP)To find related projects concentrated on similar wo
rk from both sides and help them to be the partners on GCDP
To identify the existent real SDIs can be involved from both sides
– (MODIS/FY/GDEM/Landsat Mosaic/Test-sites etc)
To develop NG-SDIs for different interest scientific communities
To guarantee the network performance and cache storage space
Historical Disaster Data Grid for Global Disaster Events (HDDG)To contribute the DCP (data collection point) for A
sia and North AmericanTo collaborate on the developing of the virtual SDI
components
HDDG will be presented at the morning session of March 29
Guoqing Li ([email protected])